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Toxic effects of prolonged administration of leaves of cassava (Manihot esculenta Crantz) to goats

SOTO-BLANCO, Benito; GÓRNIAK, Silvana Lima
Fonte: Jena Publicador: Jena
Tipo: Artigo de Revista Científica
ENG
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Cassava (Manihot esculenta Crantz) is a major source of dietary energy for humans and domestic animals in many tropical countries. However, consumption of cassava is limited by its characteristic content of cyanogenic glycosides. The present work aimed to evaluate the toxic effects of ingestion of cassava leaves by goats for 30 consecutive days, and to compare the results with the toxic effects of cyanide in goats, which have been described previously. Eight Alpine cross-bred female goats were divided into two equal groups, and were treated with ground frozen cassava leaves at a target dose of 6.0 mg hydrogen cyanide (HCN)/kg/day (treated animals), or with ground hay and water only (control group) by gavage for 30 consecutive days. Blood samples were collected on days 0, 7, 15, 21, and 30 for biochemical panel and cyanide determination. At the end of the experiment, fragments of pancreas, thyroid gland, liver, kidney, lungs, heart, spleen, and the whole central nervous system were collected for histopathological examination. Clinical signs were observed in all goats treated with cassava on the first day of the experiment. From the second day the dose of cassava leaves was reduced to 4.5 mg HCN/kg/day. No changes were found in the blood chemical panel. A mild increase in the number of resorption vacuoles in the thyroid follicular colloid...

Spermatogenesis in goats with and without scrotum bipartition

Machado Junior, A. A. N.; Oliveira, L. S.; Assis Neto, Antonio Chaves; Alves, F. R.; Miglino, Maria Angélica; Carvalho, M. A. M.
Fonte: Elsevier Science Bv; Amsterdam Publicador: Elsevier Science Bv; Amsterdam
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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The objective of the present research was to quantify the seminiferous epithelium cells, spermatogenesis efficiency and characterize the ultrastrucure of Sertoli cells in goats. Eighteen goats were used and divided into three groups: Group I - goats without bipartition of the scrotum; Group II - animals with bipartition of the scrotum in up to 50% of the testicular length; Group III - goats with bipartition of the scrotum in more than 50% of the testicular length. The goat testes in Group III had a greater number of primary spermatocytes (25.37 +/- 4.55 cells per cross sections), spermatids (112 +/- 15.12 cells per cross sections), and Sertoli cells (9.46 +/- 1.74 cells per cross sections) than the animals in Groups land (P <0.05). The spermatogenic mitotic, meiotic, and general efficiency were greater in animals in Group III (1.25 +/- 0.28; 5.12 +/- 1.63; 6.44 +/- 1.96) when compared to those in Groups I and II. Sheet-like processes originated from the Sertoli cell body as simple and smooth structures which involved almost all the surface of germ cells. Slender cord-like processes originated from Sertoli cells and also from the sheet-like processes. The relative frequency of the cycle stages showed differences among the groups of goats studied...

Efeitos tóxicos da "Ipomoea carnea" em caprinos. II - estudos de teratogenicidade; Toxic effects of the Ipomoea carnea in goats. 11- studies of teratogenicity

Henrique, Breno Schumaher
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 01/07/2005 PT
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A Ipomoea carnea, pertencente à família das Convolvulaceae, é uma planta tóxica que tem ampla distribuição pelo país, tendo como principal princípio ativo a suainsonina. É uma das poucas plantas que se conserva verde durante a seca, podendo servir como fonte de matéria verde para bovinos, ovinos e caprinos, é nesse período, quando normalmente ocorrem os casos de intoxicação, sendo a espécie caprina a mais susceptível. Até o momento, não há relatos sobre efeitos tóxicos desta planta em conseqüência da possível passagem transplacentária da suainsonina. Assim, o objetivo do presente estudo foi avaliar os possíveis efeitos teratogênicos da I. carnea, em caprinos. Foram usados 20 cabras, divididas em 4 grupos iguais: 3 experimentais e 1 controle. As cabras dos grupos experimentais receberam a partir do 27° dia de prenhez até o final da gestação 1,0; 5,0 e 7,5 glkg/dia de I. carnea. Nas fêmeas gestantes foi feito o exame clínico periódico, colheita de sangue para avaliação do hemograma e bioquímica sanguínea, exames fetais ultra-sonográficos (US) e acompanhamento do parto. Ao nascimento, todos os filhotes foram avaliados para identificação de malformações, alguns foram submetidos à eutanásia, para a realização do estudo anatomopatológico e nos demais avaliou-se o ganho de peso...

Autoclaved, previously used intravaginal progesterone devices induces estrus and ovulation in anestrous Toggenburg goats

Souza, J. M. G.; Torres, C. A. A.; Maia, A. L. R. S.; Brandao, F. Z.; Bruschi, J. H.; Viana, J. H. M.; Oba, E.; Fonseca, J. F.
Fonte: Elsevier B.V. Publicador: Elsevier B.V.
Tipo: Artigo de Revista Científica Formato: 50-55
ENG
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Intravaginal progesterone devices are used worldwide for estrus induction in goats. Reused devices are able to induce estrus; however, this can be a health risk within a flock. The objective was to compare new and previously used (and autoclaved) progesterone-releasing intravaginal devices for induction of estrus and ovulation in seasonally anestrous Toggenburg goats. Anestrous goats (n = 42) received new intravaginal devices containing 0.3 g progesterone (CONTROL), or similar devices previously used for either 6 (USED6) or 12d (USED12) and subsequently autoclaved. All goats received 5 mg dinoprost at device insertion and 200 IU eCG 5 d later, and all devices were removed after 6 d. After device removal, estrus was monitored and females displaying signs of estrus were mated by fertile bucks. Transrectal ovarian ultrasonography was performed after device removal until detection of ovulation. Blood samples were collected for determination of plasma progesterone concentration at different times. There was no difference (P > 0.05) among groups CONTROL, USED6 or USED12 for: estrus response (87,100 or 100%, respectively); duration of estrus (32.3 +/- 2.3, 25.2 +/- 3.4 or 27.3 +/- 4.1 h); ovulation rate (100...

Botulism by Clostridium botulinum type C in goats associated with osteophagia

Riet-Correa, Franklin; Medeiros, Rosane M. T.; Tokarnia, Carlos H.; de Carvalho, Ciro J. S.; Franklin, Fabio L. A. A.; Dias, Alexandre C. S.; Ferreira, Rosa M. M.; Silva, Silvana. M. M. S.
Fonte: Elsevier B.V. Publicador: Elsevier B.V.
Tipo: Artigo de Revista Científica Formato: 201-205
ENG
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An outbreak of botulism was detected in goats in the semiarid region of Brazil. In a flock of 460 goats, 38 does were affected and 37 died. Kids and younger goats were not affected. The main clinical signs were flaccid tetraparesis leading to tetraplegia that was often accompanied by twisted neck, tongue paralysis, and muscle tremors. At the time of the visit, 4 out of 11 affected goats were recumbent. Ambulatory goats had uncoordinated and swaying gaits with hypometria and weakness, mainly of the hind limbs. Two recumbent and four ambulatory goats showed twisted neck. Two recumbent goats were euthanized and necropsied. Non-significant gross and histologic lesions were observed. Samples of the liver, gut and rumen content were collected from the two goats and examined for botulinum toxins using the mouse serum neutralization test. The three samples from one goat were positive for type C toxin. Marked osteophagia was observed when the goats had access to bones in the pasture, and the farmer mentioned that osteophagia was common among goats of the flock. A sample of the plant Hybantus ipecaconha, the most abundant forage available for the goats, contained 2800 mg/kg of Ca and 450 mg/kg of P. One soil sample contained 58.12 mg/kg of Ca and 2.02 mg/kg of P. It was concluded that in this outbreak...

Time of ovulation in nulliparous and multiparous goats

Simões, João; Baril, Gérard; Almeida, José Carlos; Azevedo, Jorge Manuel Teixeira de; Fontes, Paulo J.; Mascarenhas, R.
Fonte: CAMBRIDGE UNIV PRESS Publicador: CAMBRIDGE UNIV PRESS
Tipo: Artigo de Revista Científica
ENG
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Fifteen nulliparous and nine multiparous Serrana goats were used, through two successive oestrous cycles, in order to characterize their ovulation time with regard to the number of ovulations after induced and natural oestrus during the breeding season. The onset of oestrus was detected by the amount of vasectomized bucks after oestrus synchronization with prostaglandin, given 10 days apart, and in the following two expected natural oestrus. The preovulatory LH peak was determined from blood samples collected 0, 4, 8, 12 16, 20 and 24 h after onset of oestrus. A transrectal ovarian ultrasound scanning was performed 20, 24, 28, 32, 36, 40, 44 and 60h after onset of oestrus, for the detection of ovulations by means of the disappearance of large follicles (>4 to 5 mm). Single ovulations were observed in 76% of oestrous periods in nulliparous goats and in 18% of nulliparous goats. The onset of oestrus to LH peak interval was lower in nulliparous (12.1 +/- 0.9 h, n = 38) than in multiparous (15.6 +/- 1.0h, n = 22, P 0.05) goats with no oestrus interaction effects (P > 0.05). The LH peak to first ovulation interval was higher after natural (18.9 +/- 0.7h, n = 36) than after induced (15.8 +/- 1.2h, n = 24, P < 0.05) oestrus. The onset of oestrus to total ovulation interval was influenced by parity (P < 0.01) and oestrus type (P < 0.05) with a length of 30.1 +/- 1.1 h (n = 15) and 33.4 +/- 1.5h (n = 9) for induced oestrus of nulliparous and multiparous goats...

Preovulatory LH peak and time of ovulation in nulliparous and primiparous goats after male effect

Simões, João; Baril, Gérard; Cunha, Teresa; Azevedo, Jorge Manuel Teixeira de; Mascarenhas, Ramiro
Fonte: Universidade de Trás-os-Montes e Alto Douro Publicador: Universidade de Trás-os-Montes e Alto Douro
Tipo: Conferência ou Objeto de Conferência
ENG
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The aim of the present study was to determine the time of preovulatory LH peak and ovulation in anoestrous goats, after stimulation by male effect. Seven nulliparous and eight primiparous Serrana goats were isolated from bucks during nonbreeding season. Anoestrus was confirmed by circulating progesterone levels. A 6-day progestagen treatment (Chronogest® 45 mg FGA, Intervet, Holland) was performed to synchronize oestrus on early May. Vaginal sponges were removed at the time of buck introduction (BI). Plasma LH levels were determined (ELISA), every 4 h, through 24 h after onset of oestrus and total number of ovulations were detected by transrectal ultrasonography, every 8 h, until 44 h. No significant differences (P > 0.05) were observed between nulliparous and primiparous goats for the interval between BI and onset of oestrus (50.6 ± 3.6 h vs 45.6 ± 2.9 h), preovulatory LH peak (54.9 ± 3.2 h vs 55.5 ± 3.8 h) or ovulation (77.7 ± 3.0 h vs 78.3 ± 3.6 h). However, the interval between the onset of oestrus and preovulatory LH peak was lower in nulliparous (4.3 ± 0.8 h) than in primiparous (10.5 ± 2.4 h; P < 0.05) goats. The interval between the onset of oestrus and ovulation was also lower in nulliparous (27.1 ± 1.4 h) than primiparous (33.3 ± 2.3 h; P < 0.05) goats. The interval between preovulatory LH peak and ovulation was constant between nulliparous (22.9 ± 1.5 h) and primiparous goats (22.8 ± 1.7 h; P > 0.05). In conclusion...

Ovulation parameters in nulliparous and multiparous Serrana goats

Simões, João; Azevedo, Jorge Manuel Teixeira de; Almeida, José Carlos; Fontes, Paulo J.; Mascarenhas, Ramiro
Fonte: Universidade de Trás-os-Montes e Alto Douro Publicador: Universidade de Trás-os-Montes e Alto Douro
Tipo: Conferência ou Objeto de Conferência
ENG
Relevância na Pesquisa
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The aim of this study was to characterize the ovulation parameters in nulliparous (n=24) and multiparous (n=14) Serrana goats during the breeding season. Oestrus was synchronised with two cloprostenol injections (50 µg, 10 days apart). Transrectal ovarian ultrasonographic scanning was performed daily, during 2 consecutive oestrous cycles. Day of ovulation was considered when large follicles disappeared and the number of ovulations was confirmed by posterior corpora lutea counting. The mean ovulation rate was 1.47 ± 0.06 (n=91); no differences were observed between induced and natural oestrus. However, ovulation rate was lower in nulliparous goats than in multiparous goats, either after induced oestrus (1.25 ± 0.09, n=24 versus 2.00 ± 0.18, n=14, P<0.001) or natural oestrus (1.19 ± 0.07, n=32 versus 1.81 ± 0.09, n=21, P<0.001). 44.8% (64/134) of total ovulations were observed in left ovary and 55.2% (70/134) in the right ovary (P>0.05). Single ovulations were observed in 78.6% (44/56) of the oestrous cycles in nulliparous goats and in 20% (7/35) of the oestrous cycles in multiparous goats (P<0.01). Double ovulations occurred in both ovaries (73%; 27/37), only in the right ovary (24.3%; 9/37) or in the left ovary (2.7%; 1/37). Ovulations observed in two consecutive oestrous cycles were both single in 36.5% (19/52) of the cycles...

Experimental swainsonine poisoning in goats ingesting Ipomoea sericophylla and Ipomoea riedelii (Convolvulaceae)

Barbosa,Rossemberg C.; Riet-Correa,Franklin; Lima,Everton F.; Medeiros,Rosane M.T.; Guedes,Karla M.R.; Gardner,Dale R.; Molyneux,Russell J.; Melo,Lúcio E.H. de
Fonte: Colégio Brasileiro de Patologia Animal - CBPA; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Publicador: Colégio Brasileiro de Patologia Animal - CBPA; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2007 EN
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Ipomoea sericophylla and Ipomoea riedelii cause a glycoprotein storage disease in goats. This paper reports the experimental poisoning in goats by dried I. sericophylla and I. riedelii containing 0.05% and 0.01% swainsonine, respectively. Three groups with four animals each were used. Group 1 received daily doses of 2g/kg body weight (bw) of dried I. sericophylla (150mg of swainsonine/kg). Goats from this group had clinical signs 36-38 days after the start of ingestion. Group 2 received dried I. riedelii daily doses of 2g/kg of I. riedelii (30mg of swainsonine/kg) for 70 days. No clinical signs were observed, therefore the swainsonine dose was increased to 60mg/kg for another 70 days. Goats from Group 2 had clinical signs 26-65 days after increase in swainsonine dose to 60mg/kg. Group 3 was used as control. In these experiments the minimum toxic dose was 60mg/kg which represents 0.0004% of the dry matter in goats ingesting 1.5% bw of the dry matter. For goats ingesting 2%-2.5% bw of dry matter this dose would be 0.00024%-0.0003% of the dry matter. After the end of the experiment two goats were euthanized and another six were observed for recovery of clinical signs. Four goats that continued to consume swainsonine containing plant for 39-89 days after the first clinical signs had non reversible signs...

Development of conditioned taste aversion to Mascagnia rigida in goats

Barbosa,Raquel Ribeiro; Silva,Idalécio Pacífico da; Soto-Blanco,Benito
Fonte: Colégio Brasileiro de Patologia Animal - CBPA; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Publicador: Colégio Brasileiro de Patologia Animal - CBPA; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2008 EN
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The aim of this study was to determine whether goats could be averted from consuming Mascagnia rigida, a toxic plant found in the semiarid region of northeastern Brazil. Fourteen male goats not previously familiarized to M. rigida were randomly allocated to two treatment groups: control (treated with 5.5mL water orally by a drenching gun) and lithium group (treated with 100mg LiCl/kg body weight orally by a drenching gun). For conditioning, goats were allowed to feed on M. rigida leaves for 15 min, followed by LiCl or water administration. The time spent on eating M. rigida leaves was measured. The conditioning was repeated daily until the LiCl-treated goats stopped eating M. rigida. On the 10th, 17th, and 24th day after conditioning, extinction trials of the M. rigida aversion were performed in goats by using single-choice tests. There was no difference between the two treatment groups with respect to the consumption of M. rigida on the first day of aversion conditioning, however, controls ingested increasing amounts of the plant on consecutive conditioning days. On the second day, five out of the seven goats in the lithium group did not eat the leaves, but on the third day, all the goats in the lithium group did not ingest M. rigida. This aversion persisted throughout all evaluated days. This indicates that goats can be easily conditioned by using lithium chloride to avoid eating M. rigida temporarily.

Rhododendron simsii poisoning in goats in Southern Brazil

Vargas Junior,Sérgio Farias; Marcolongo-Pereira,Clairton; Halinski-Silveira,Dênis; Grecco,Fabiane Borelli; Raffi,Margarida Buss; Schild,Ana Lucia; Sallis,Eliza Simone Viégas
Fonte: Universidade Federal de Santa Maria Publicador: Universidade Federal de Santa Maria
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/07/2014 EN
Relevância na Pesquisa
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This study describes the natural poisoning of goats by Rhododendron simsii in Southern Brazil. Five of eight goats died after ingesting branches of plants, which were pruned and placed near the goats. Clinical signs observed were restlessness, shrill bleating, profuse regurgitation, looking and kicking at the flank, a loss of balance, irregular gait, staggering, and opisthotonos. At necropsy or histopathology affected goats had not showed lesions. Two goats were fed with 21.5g kg-1 bw and 30g kg-1 bw of fresh leaves of R. simsii. Both goats developed signs similar to those naturally affected goats. These findings indicated that R. simsii is highly toxic and lethal to goats.

Timed hormonal treatments in induction and synchronization of Saanen goats estrus during nonbreeding season.

ARAÚJO, A. C. C.; OLIVEIRA, J. S. K.; TORRES FILHO, R. A.; BRANDÃO, F. Z.; FONSECA, J. F. da
Fonte: In: INTERNATIONAL CONFERENCE ON GOATS, 10., 2010, Recife. Technological development and associative attempts to a sustainable small livestock production: annals. Little Rock: IGA, 2010. 1 f. 1 CD-ROM. Publicador: In: INTERNATIONAL CONFERENCE ON GOATS, 10., 2010, Recife. Technological development and associative attempts to a sustainable small livestock production: annals. Little Rock: IGA, 2010. 1 f. 1 CD-ROM.
Tipo: Resumo em anais de congresso (ALICE)
EN
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With the aim to evaluate reproductive performance of Saanen goats among different timed hormonal protocols during nonbreeding season, 30 females had the estrus cycles induced and synchronized by insertion of an intravaginal sponge impregnated with 60mg Medroxyprogesterone Acetate. All goats received 200 IU eCG and 37.5 ?g PGF2? analog 24 hours prior to sponge removal. After 5 days of mating, all animals received 250 IU hCG. Animals were divided in 3 groups: Group 1 (G1) ? vaginal sponge remaining for 6 days (n=10); Group 2 (G2) ? vaginal sponge remaining for 9 days (n=10) and Group 3 (G3) ? vaginal sponge remaining for 12 days (n=10). An ultrasound scanner was used to determine time of ovulation and animals were tested for estrus by the use of a buck. All animals (100%) from G2 and G3 had signs of estrus while one goat (10%) from G1 did not show sings. Estrus length had no difference between groups (G1: 34.66 ± 22.80; G2: 30.00 ± 12.96; G3: 37.20 ± 19.14 hours, P>0.05). Time between sponge removal and beginning of estrus (G1: 20.66 ± 16.73; G2: 20.40 ± 7.59; G3: 19.20 ± 10.51 hours) and time from beginning of estrus until ovulation (G1: 26.40 ± 5.37; G2: 30.00 ± 12.96; G3: 34.28 ± 8.28 hours) also did not differ (P>0.05). G2 had all animals ovulating (100%) while G1 had 8 and G3 had 7 (80% and 70%...

Dietary energy intake and sexual behavior of Toggenburg goats.

OLIVEIRA, J. S.; ESTEVES, L. V.; MAGÃO, J. V. P.; FÉRES, L. F. R.; TORRES FILHO, R. A.; RODRIGUES, C. A. F.; FONSECA, J. F. da; BRANDÃO, F. Z.
Fonte: In: INTERNATIONAL CONFERENCE ON GOATS, 10., 2010, Recife. Technological development and associative attempts to a sustainable small livestock production: annals. Little Rock: IGA, 2010. 1 f. 1 CD-ROM. Publicador: In: INTERNATIONAL CONFERENCE ON GOATS, 10., 2010, Recife. Technological development and associative attempts to a sustainable small livestock production: annals. Little Rock: IGA, 2010. 1 f. 1 CD-ROM.
Tipo: Resumo em anais de congresso (ALICE)
EN
Relevância na Pesquisa
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In order to evaluate the sexual behavior of Toggenburg goats fed with different dietary energy, 32 kids in reproductive age and free of any reproductive pathology were divided in 3 groups according to the dietary treatment. Group 1, maintenance (M) (n=11); Group 2, supplied energy 1.5 times energy maintenance (1.5M) (n=10); and Group 3, supplied energy 2.0 times energy maintenance (2.0M) (n=11). The estrus cycles of all kids were induced and synchronized by insertion of an intravaginal sponge impregnated with 60mg Medroxyprogesterone Acetate. An ultrasound scanner fitted with an 8.0-MHz linear transducer, adapted for small ruminants was used to determine ovulation time and females were tested for estrus twice daily after sponge removal by the use of a male goat. Time between sponge removal and beginning of estrus and from beginning of estrus until ovulation, as well as estrus length were measured. Results were analyzed by the Duncan test employing a significancy level of P <0.05. All animals from groups 1 and 2 (100%) had signs of estrus while one goat from group 3 did not show signs (9.10%). Estrus length had no differences between groups (Group 1: 31.63 ± 12.32 hours; Group 2: 43.20 ± 12.90 hours; Group 3: 40.80 ± 14.08 hours ? P>0.05). Time between sponge removal and beginning of estrus also did not differ (Group 1: 28.00 ± 12.00 hours; Group 2: 32.80 ± 11.59 hours; Group 3: 30.40 ± 14.08 hours ? P>0.05) but time from beginning of estrus until ovulation was substantially shorter in group 3 (15.13 ± 8.63 hours ? P <0.05) than other groups (Group 1: 28.28 ± 12.57 hours; Group 2: 27.00 ± 14.40 hours). We conclude that animals fed with high energy diet ovulates faster than others after the onset of estrus.; 2010

Role of coat colour in body heat regulation among goats and hairy sheep in tropics.

PANT, K. P.; ARRUDA, F. de A. V.; FIGUEIREDO, E. A. P. de.
Fonte: Pesquisa Agropecuária Brasileira, Brasília, DF, v. 20, n. 6, p. 717-726, jun. 1985. Publicador: Pesquisa Agropecuária Brasileira, Brasília, DF, v. 20, n. 6, p. 717-726, jun. 1985.
Tipo: Artigo em periódico indexado (ALICE)
EN
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Abstract: This experirnent was conducted during the hottest and the leanest period of the year in the tropical semi-arid northeast of Brazil to evaluate the relative response of black and white va- rieties (with the colour of skin and of haïr being the same) of goats and hairy sheep to grazing under direct solar radiation. There was a marked increase in midside-skin (MS), oar-skin (ES) and rectal temperatures (R T) and respiratory rate (RR) at 2 P .M. The afternoon increase was more in sheep in MS, RT and RR, but ES increased more in goats. Black animais had uniformly higher MS. White sheep had higher ES but in goats colour had no effect. Right ES was higher in sheep and there was some tendency of higher right ES in general. The black goats respired at much higher rates than the white, but in sheep, colour did not influence RR. Colour of animais did not influence RT. There was signi- ticant day-to-day variation, possibly associated with small fluctuations in environmental temperature, in MS, ES and RR but not in RT. The results indicate that goats appear to be better adapted than hairy sheep and white goats better than black goats under local climatic conditions. [Influência da cor da pelagem na regulação do calor em caprinos e ovinos sem-lã no trópico]. Resumo: Este experimento foi conduzido na região tropical do nordeste Brasileiro para avaliar a resposta relativa ao calor dos caprinos e ovinos sem-lã de pelagem (pele + pêlo) branca e preta em pastejo e expostos diretamente à radiação solar. Houve um aumento marcante nas temperaturas da pele da costela (PC)...

Artificial insemination in goats.

NUNES, J. F.
Fonte: In: INTERNATIONAL CONFERENCE ON GOATS, 4., 1987, Brasília, DF. Proceedings... Brasília, DF: EMBRAPA-DDT, 1987. v. 1. p. 733-743. Publicador: In: INTERNATIONAL CONFERENCE ON GOATS, 4., 1987, Brasília, DF. Proceedings... Brasília, DF: EMBRAPA-DDT, 1987. v. 1. p. 733-743.
Tipo: Artigo em anais de congresso (ALICE)
EN
Relevância na Pesquisa
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Technical and economical evaluation of determined practices of reproduction and breeding, focused here on artificial insemination of reproduction and breeding, focused here on artificial insemination and the further measurement of matings, shows a high productive efficiency in the development of dairy goats. Artificial insemination in Brazil, especially in the Northeast, spread in a rapid, massive and positive way to determine genetic characteristics for dairy production. This program through the utilization of tested bucks has contributed to the firs offspring with significant increases in milk production. The presentation of the best breeds through a germplasm bank, using improvement technology of goat semen has made possible new technological alternatives for goat breeders program of dairy goats in the Northeast and for extension to other parts of Brazil.; 1987

Influência da gestação e do puerpério sobre o eritrograma de caprinos (Capra hircus) da raça Saanen, criados no Estado de São Paulo; Influence of pregnancy and puerperium in the erythrogam of Saanen goats (Capra hircus), raised in the State of São Paulo - Brazil;

Viana, Rinaldo Batista; Birgel Junior, Eduardo Harry; Ayres, Maria Consuelo Caribé; Benesi, Fernando José; Mirandola, Regina Mieko Sakata; Birgel, Eduardo Harry
Fonte: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia Publicador: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2003 POR
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Para avaliar a influência da gestação e do puerpério sobre o eritrograma de caprinos (Capra hircus) foram coletadas 150 amostras de sangue de cabras sadias da raça Saanen, criadas no Estado de São Paulo, distribuídas em cinco grupos com 30 animais cada: G1 - cabras não prenhes; G2 - fase inicial da gestação (30 -| 60 dias de prenhez); G3 - fase média da gestação (60 -| 120 dias de prenhez); G4 - fase final da gestação (>; 120 dias de prenhez); e G5 - recém-paridas(cabras com até 30 dias pós-parto). Nas amostras de sangue coletadas em frascos contendo EDTA, foram realizadas as seguintes análises: contagem do número de hemácias, determinação do volume globular, dosagem de hemoglobina, e cálculo dos índices hematimétricos (Volume Corpuscular Médio - VCM, Hemoglobina Corpuscular Médio - HCM, Concentração de Hemoglobina Corpuscular - CHCM). Constatou-se a influência da gestação e do puerpério sobre o eritrograma, pois na fase final da gestação, houve diminuição do número de hemácias, valores estes que retornaram no puerpério aos patamares observados nas cabras não prenhes, fases inicial e média da gestação. A avaliação do volume globular e da taxa de hemoglobina não revelou variações significativas que pudessem ser atribuídas à gestação ou ao puerpério. Na análise dos índices hematimétricos...

Caprine arthritis encephalitis: productive and reproductive aspects evaluation in infected and no infected goats; Artrite encefalite caprina: avaliação dos aspectos produtivos e reprodutivos de animais infectados e não infectados

Bohland, Elizabeth; D'Angelino, José Luiz
Fonte: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia Publicador: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2005 POR
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O objetivo foi avaliar os aspectos produtivos e reprodutivos, de caprinos leiteiros, reagentes e não reagentes à prova de imunodifusão em ágar gel (IDAG), utilizando os antígenos gp135 e p28 do vírus da Artrite Encefalite Caprina (CAE). Os animais pertenciam a uma propriedade localizada no interior de São Paulo e foram acompanhados por um período de 24 meses, tendo sido realizados 3 testes sorológicos, com intervalos de 12 meses. A freqüência de ocorrência da CAE, nos três momentos foi respectivamente, 60,1%, 74,1%, e 70,5% (média de 68,3% - 566/829). O percentual de animais reagentes aumentou significativamente com a idade. A duração média da lactação (dias) foi menor para reagentes e significativa nas faixas etárias 24 a 36 meses e 36 a 48 meses. A produção leiteira (kg./dia) foi menor para reagentes e significativa nas faixas etárias: 12 a 24 meses maior ou igual a 48 meses. A produção total por lactação foi 21,5% menor para as cabras soropositivas. A CAE não influenciou os aspectos reprodutivos neste estudo no que se refere à idade ao primeiro parto, ao intervalo interpartos. No entanto, a média de idade ao parto entre os animais reagentes foi maior e estatisticamente significante e o peso das crias nascidas de mães reagentes com idade maior ou igual a 48 meses foi menor do que os animais nascidos de cabras não reagentes.; The present study was carried out to compare the productive and reproductive aspects of Caprine Arthritis Encephalitis virus (CAEv) antibody-positive and antibody-negative dairy goats. The agar gel immunodiffusion test (AGID) was performed...

Usefulness of certain clinical observations and blood chemistry values (BHBA, glucose, ions and blood gases) for predicting clinical outcomes when treating dairy goats with pregnancy toxemia

Silveira, Júlia Elvira Maciel
Fonte: Universidade de Lisboa. Faculdade de Medicina Veterinária Publicador: Universidade de Lisboa. Faculdade de Medicina Veterinária
Tipo: Dissertação de Mestrado
Publicado em 24/11/2015 ENG
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Silveira, J.E.M. (2015). Usefulness of certain clinical observations and blood chemistry values (BHBA, glucose, ions and blood gases) for predicting clinical outcomes when treating dairy goats with pregnancy toxemia. Dissertação de mestrado. Universidade de Lisboa. Faculdade de Medicina Veterinária. 2015; Pregnancy toxemia (PT) is a disease characterized by a high case fatality rate (75% in this study). Clinical signs and blood chemistry values from 32 cases of PT in goats are described and summarized. Polypnea, swollen limbs, anorexia and absence of ruminal motility, sternal recumbency but ability to rise upon stimulation, neurological signs and drooped ears were the most consistently observed clinical manifestations. A decision concerning whether or not to and/or how to attempt to treat a PT goat should be based on clinical signs and blood parameters. The clinical signs most indicative of a poor prognosis are anorexia and recumbency; among the blood parameters it is potassium (K+) and those indicative of a metabolic acidosis, namely pH, pCO2, bicarbonate (HCO3-), base excess (BE), as there was a statistically significant difference between the goats that died and the goats that survived. Beta-hydroxybutyric acid (BHBA) values were not significantly different between the goats that died and the goats that survived. In conclusion...

Discriminant analysis of morphometric differentiation in the West African Dwarf and Red Sokoto goats

Yakubu,A; Salako,A.E; Imumorin,I.G; Ige,A.O; Akinyemi,M.O
Fonte: South African Journal of Animal Science Publicador: South African Journal of Animal Science
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2010 EN
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This study evaluated the usefulness of morphological characteristics to distinguish two important indigenous goat breeds in Nigeria. Fifteen morphometric traits were measured on West African Dwarf - WAD (n = 160) and Red Sokoto - RS (n = 142) goats that ranged in age of up to 19 months and were reared extensively in villages in southern and northern Nigeria. Univariate analysis revealed that the body measures of RS goats were significantly higher than those of WAD goats. Canonical discriminant analysis gave better resolution, as only seven external morphological characteristics of strong discriminating power were extracted. The most discriminant variable between the two goat populations was rump height, followed in order by body length, horn length, face length, chest girth, neck circumference and head width. The discriminant function obtained correctly classified 100% of individuals from the sample of known goat populations. The classification accuracy of the function was cross-validated using the split-sample method, and indicated a 99.7% success rate (99.4% of WAD goats and 100% of RS goats were correctly assigned to their source genetic group). This study indicates that a discriminant tool may be used successfully in the field to separate WAD and RS goats. The present results could be complemented by molecular characterization using DNA markers for better management and conservation strategies of genetic resources for indigenous goats.

Diversity and seasonal occurrence of Eimeria species in a mixed flock of communally reared sheep and goats in Mafikeng in the North West Province, South Africa

Bakunzi,F R; Thwane,S N; Motsei,L E; Dzoma,B M
Fonte: Journal of the South African Veterinary Association Publicador: Journal of the South African Veterinary Association
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2010 EN
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Diversity and seasonal occurrence of coccidia in a communally reared mixed flock of sheep and goats at Mafikeng, North West Province, South Africa, was determined between March 2008 and February 2009. Faecal specimens were collected directly from the rectum of the animals and the number of oocysts per gram of faeces (opg) determined. The mean monthly opg for goats was significantly higher than that for sheep. Higher oocyst counts were observed during the hot, rainy season than during the cold, dry season. The highest mean values for both the sheep (862.5 opg) and goats (1200 opg) were recorded during March. Six species (Eimeria crandallis, E. bakuensis, E. weybridgensis, E. ahsata, E. intricata, and E. ovinoidalis) were recovered from sheep, with E. crandallis and E. bakuensis occurring most frequently. The last 2 species, together with E. ahsata, are considered among the most pathogenic species in sheep. In goats, 7 species (E. arloingi, E. jolchijevi, E. caprina, E. alijevi, E. caprovina, E. christenseni and E. hirci) were recovered, with E. arloingi and E. jolchijevi occurring most frequently. Up to 5 Eimeria species were recovered from individual specimens in goats while up to 4 were recovered in sheep. No cross-infections between goats and sheep were recorded and no clinical coccidiosis was noted during the study. It is increasingly becoming evident that the pathogenic E. arloingi is one of the most commonly occurring Eimeria species in goats in South Africa.