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| Registros recuperados: 17 | |
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| Vaz,Adil Knackfuss; Jones,James Eirug Thomas. |
| SUMMARY Ovine mastitis causes varying economic fosses in all countries where sheep are kept. A survey of 3128 breeding ewes in 22 farms in two areas with different management practices in Southern Brazil showed that the average prevalence of subclinical and chronic mastitis was 14.1% of ewes with at least one affected gland. From those, 4.49% were also bacteriologically positive. The prevalence in individual farms varied from 0 to 37% of ewes with clinical abnormalities of the udder. The overall prevalence was greater in Area II, where meat breeds predominate and animals are housed at night. It is concluded that subclinical and chronic mastitis is uniikely to be an economic problem in Area I, where wool production is the objective of the sheep industry.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sheep; Ewes; Mastitis; Lambs; Brazil. |
| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781994000200022 |
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| Silveira,José Coriolano Andrade da; Fonsêca,Vinícius de França Carvalho; Furtado,Dermeval Araújo; Santos,Severino Guilherme Caetano Gonçalves dos; Silva,Josinaldo Araújo da; Pimenta Filho,Edgard Cavalcanti; Saraiva,Edilson Paes; Medeiros,Ariosvaldo Nunes de. |
| ABSTRACT This study was designed to assess the effects of feeding space availability on social behavior and performance of housed crossbreed sheep through the use of three different types of feeders. Thirty-six crossbreed ewes (Santa Inês × Dorper; 2-3 years old) with initial body weight of 34.99±4.28 kg were randomly assigned to a 3 × 3 (feeder type × available space at the feeder) factorial arrangement among nine pens. Pens had one of three feeder types (concrete bunk, plastic, or wood barrel) and one of three amounts of available space in the feeder (0.33, 0.25, or 0.20 m animal−1). Total dry matter intake/pen, dry matter intake per animal, total weight gain/pen, daily weight gain/animal, and food waste were evaluated. Percentage of time spent at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dominance relationship; Ewes; Feeding space; Food waste. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100204 |
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| Domínguez Islas, Manuel. |
| Se evaluó la incorporación del “efecto macho” a un protocolo de superovulación. Se utilizaron 20 ovejas de lana de la raza Suffolk, Hampshire y Dorset, de condición corporal (cc) 3.1 ± 0.4, con edad promedio de 3.9 ± 0.8 años, durante época de transición de anestro a temporada reproductiva en los meses de junio-julio del 2011. Se asignaron 10 ovejas de manera aleatoria en dos lotes. Los tratamientos fueron los siguientes: Tratamiento 1 (T1): se introdujo un CIDR (considerado día 0) a cada ovejas durante 9 días, 48 horas previas al retiro, se administro 500 μg de Cloprostenol, además de 300 UI de Gonadotropina coriónica equina (eCG) y 250 UI de gonadotropinas hipofisarias de cerdo cada 12 horas (48, 36, 24, 12, 0 previas al retiro y 12 h después del... |
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Palavras-chave: Efecto macho; Ovejas; Anestro; Gonadotropinas; Folículo; Ganadería; Maestría; Male effect; Ewes; Anestrus; Gonadotropins; Follicle. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1779 |
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| Fukui, Yutaka; Yamamura, Kunio; Matsunaga, Nobuyoshi; Miyamoto, Akio; 福井, 豊; 宮本, 明夫. |
| The present study aimed to examine the possibility that bovine somatotropin (BST) treatment after artificial insemination (AI) may improve the fertility by the stimulation of corpus luteum (CL) function in seasonally anestrous ewes. The experiment was conducted at the Tawa Field Station, Shibecha-cho in Hokkaido, Japan, during the non-breeding season (May, 1995). Eighty-nine mature (2 to 3 years old) Suffolk and Suffolk-crossed ewes were treated with controlled internal drug release devices containing 0.3 g progesterone (CIDR-G) for 12 days. Ewes were injected intramuscularly with 500 IU PMSG the day before CIDR removal. Eighty-seven ewes were assigned to an insemination of frozen semen on a fixed-time basis (42 to 50 h) after removal of CIDR. On the 11th... |
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Palavras-chave: Bovine somatotropin; Artificial insemination; Progesterone; Conception rate; Ewes. |
| Ano: 2000 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2971 |
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| Ochoa-Cordero,Manuel A.; Torres-Hernández,Glafiro; Mandeville,Peter B.; Díaz-Gómez,Marta O.. |
| Abstract The effects of physiological and management factors on the milk composition of Rambouillet ewes under confined management at the Sheep Unit, Agronomy Faculty, Universidad Autónoma de San Luis Potosí, México, were evaluated. Two treatments were randomly assigned to 45 single and twin-rearing ewes, 2-5 years old: 6 and 8 weeks of lactation, which were the dates when the lambs were weaned. Milk samples were taken during lactation (weeks 1, 3, 6, 8, and 12), and chemically analyzed using standard laboratory procedures for protein, fat, total solids, ash and lactose percentages. Statistical analysis was performed utilizing a model that included the fixed effects of lambing number (LN: 1-3+), birth type (BT: single, twins), lamb sex (LS: ram lambs, ewe... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental factors; Ewes; Intensive management; Milk components. |
| Ano: 2007 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952007000300263 |
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| Martín-Alonso,María José; Escalera-Valente,Francisco; Cal-Pereyra,Luis G.; Benech,Alejandro; Alonso,María Pilar; González-Montaña,José Ramiro. |
| ABSTRACT The objective of this research was to evaluate a possible corrective measure against negative metabolic states, as occurs in the advanced stage of gestation in ewes, and that sometimes produces a disease called pregnancy toxaemia. In the present research, we found that the joint administration of i.v. lysine-vasopressin (0.08 IU/kg body weight, BW) and an oral glucose solution (50 g) produces an increase in blood glucose, which persists for some time (up to 6 h); therefore, it could be used in the treatment of pregnancy toxaemia. This therapy is based on the fact that lysine-vasopressin induces gastric groove closure in adult ruminants, enabling orally administered glucose to reach the abomasum directly, from where it rapidly passes into the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ewes; Gastric groove; Glycaemia; Metabolism; Pregnancy; Toxaemia; Vasopressin. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100723 |
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| Antunović,Zvonko; Šperanda,Marcela; Mioč,Boro; Klir,Željka; Ćavar,Suzana; Novoselec,Josip. |
| ABSTRACT The objective of this research was to evaluate the effect of pea and sunflower cake as partial replacement for soybean meal in diet, as well as to assess their effect on milk quality during lactation and on blood parameters of ewes kept in organic farming. The research was carried out with 30 ewes of Merinolandschaf breed during 75 days. Ewes were given mixtures based on soybean meal as a protein source in control group (SBM), while in experimental groups, soybean meal was partially replaced with pea grain (P) and sunflower cake (SFC). Biochemical parameters (urea, glucose, total protein, albumin, globulins, cholesterol, HDL, LDL, triglyceride, β-hydroxybutyrate, and non-esterified fatty acids), as well as enzyme activity (ALT, AST, ALP, GGT, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood parameters; Ewes; Milk composition; Protein source. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100718 |
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| Denadai,Renan; Leite,Hyago Ramalho; Bicudo,Luana de Cássia; Rodello,Leandro; Oba,Eunice; Bicudo,Sony Dimas. |
| ABSTRACT: The aim of this study was to determine the pattern of follicular development in ewes following ablation of all follicles associated with ovarian superstimulatory treatment. After confirmation of reproductive cyclicity using ultrasonography and progesterone levels, five adult ewes of undetermined breed received a vaginal pessary containing 60mg of medroxyprogesterone, maintained for 10 days, with the application of 100μg cloprostenol on the fourth day. On the tenth day, 300UI equine chorionic gonadotropin (eCG) was applied together with 80mg FSH, and all visible follicles were aspirated by laparoscopic ovum pick-up (LOPU). Following LOPU, ovarian structures were assessed using sonography every 8 hours for a period of 64 hours, and the number and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Follicular dynamics; Superstimulation; Ultrasound; Ewes. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100701 |
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| Salinas-Rios,T.; Ramírez-Godínez,J.A.; Rodríguez-Almeida,F.A.; Hernández-Bautista,J.; Torres-Salado,N.; Herrera-Pérez,J.. |
| ABSTRACT Profitability of sheep production depends on the reproductive response of ewes and growth of their lambs, which can be improved through the ram genotype. The aim of this study was to evaluate the reproductive response of Blackbelly (Bb), Pelibuey (Pb), Katahdin (Kat) and Dorper (Dor) ewes crossed with Damara (Dam) and Dor rams and the growth of their offspring. To measure percentage of single and multiple lambings (MLP), 234 Bb, Pb, Kat and Dor ewes were used. To measure lamb growth, the offspring of 86 Bb x Pb (BbPb) ewes and 73 Kat x Dor (KatDOR) ewes were used. Four Dor x BbPb, six Dam x BbPb and six Dam x KatDor lambs were slaughtered for carcass assessment. MLP was analyzed with the CATMOD procedure considering the factors age and breed. Lamb... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lambs; Breeding; Weaning; Ewes; Lambing. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200429 |
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| Cedillo Galindo, Nelly. |
| Se sincronizó estros en ovinos utilizando diferentes dosis del progestágeno acetato de fluorogestona (FGA). Se evaluaron la presentación y duración del estro; inicio, duración y amplitud del pico preovulatorio de LH, así como la concentración promedio de progesterona y la tasa de gestación. Se asignaron de manera aleatoria tres tratamientos a 30 ovejas, T1: esponja completa (n=10), T2: ½ esponja (n=10) y T3: ¼ de esponja (n=10). Los resultados para presentación del estro de T1, T2 y T3 fueron 28.7±1.6, 37.8±2.6 y 28.5±3.5 h, respectivamente (media ± error estándar; p>0.05); inicio del estro para T1, T2 y T3 fue 28.7±1.6, 37.8±2.6 y 28.5±3.4 h (p>0.05); los resultados de inicio del pico preovulatorio de LH para T1, T2 y T3 fueron 28±3.4,... |
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Palavras-chave: Sincronización; Ovinos; LH; Progesterona; FGA Synchronization; Ewes; LH; Progesterone; FGA. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/864 |
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| Cedillo Galindo, Nelly. |
| Se sincronizó estros en ovinos utilizando diferentes dosis del progestágeno acetato de fluorogestona (FGA). Se evaluaron la presentación y duración del estro; inicio, duración y amplitud del pico preovulatorio de LH, así como la concentración promedio de progesterona y la tasa de gestación. Se asignaron de manera aleatoria tres tratamientos a 30 ovejas, T1: esponja completa (n=10), T2: ½ esponja (n=10) y T3: ¼ de esponja (n=10). Los resultados para presentación del estro de T1, T2 y T3 fueron 28.7±1.6, 37.8±2.6 y 28.5±3.5 h, respectivamente (media ± error estándar; p>0.05); inicio del estro para T1, T2 y T3 fue 28.7±1.6, 37.8±2.6 y 28.5±3.4 h (p>0.05); los resultados de inicio del pico preovulatorio de LH para T1, T2 y T3 fueron 28±3.4,... |
| Tipo: Tesis |
Palavras-chave: Sincronización; Ovinos; LH; Progesterona; FGA; Maestría; Ganadería; Synchronization; Ewes; LH; Progesterone; FGA. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1234 |
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| Cedillo Galindo, Nelly. |
| Se sincronizó estros en ovinos utilizando diferentes dosis del progestágeno acetato de fluorogestona (FGA). Se evaluaron la presentación y duración del estro; inicio, duración y amplitud del pico preovulatorio de LH, así como la concentración promedio de progesterona y la tasa de gestación. Se asignaron de manera aleatoria tres tratamientos a 30 ovejas, T1: esponja completa (n=10), T2: ½ esponja (n=10) y T3: ¼ de esponja (n=10). Los resultados para presentación del estro de T1, T2 y T3 fueron 28.7±1.6, 37.8±2.6 y 28.5±3.5 h, respectivamente (media ± error estándar; p>0.05); inicio del estro para T1, T2 y T3 fue 28.7±1.6, 37.8±2.6 y 28.5±3.4 h (p>0.05); los resultados de inicio del pico preovulatorio de LH para T1, T2 y T3 fueron 28±3.4,... |
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Palavras-chave: Sincronización; Ovinos; LH; Progesterona; FGA Synchronization; Ewes; LH; Progesterone; FGA. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/846 |
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| Monsalvo García, Araely. |
| Se sabe que el proporcionar selenio (Se) y vitamina E (vit E) en niveles adecuados se mejora la actividad reproductiva, sin Embargo existen pocos trabajos en los que se haya evaluado el proporcionar un suplemento de Se y vit E a borregas primerizas durante la etapa de gestación hasta el momento del parto. En este trabajo se tuvieron 21 borregas gestantes Dorset, Suffolk y cruza de ambas, con peso vivo promedio de 55 ± 10 kg y un año de edad, las que se Distribuyeron al azar en cuatro tratamientos (T): T1) testigo (6 repeticiones); T2) suplemento con Se (0.2 ppm kg-1 alimento d-1) (5 repeticiones); T3) suplemento con vit E (400 U.I. animal-1) (5 repeticiones) y T4) suplemento con Se y vit E (5 repeticiones). El suplemento se dio cada día a las borregas,... |
| Tipo: Thesis |
Palavras-chave: Selenio; Vitamina E; GSH-Px; Gammaglobulinas; Borregas; Selenium; Vitamin E; Gamma-globulin; Ewes; Maestría; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/131 |
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| Monsalvo García, Araely. |
| Se sabe que el proporcionar selenio (Se) y vitamina E (vit E) en niveles adecuados se mejora la actividad reproductiva, sin Embargo existen pocos trabajos en los que se haya evaluado el proporcionar un suplemento de Se y vit E a borregas primerizas durante la etapa de gestación hasta el momento del parto. En este trabajo se tuvieron 21 borregas gestantes Dorset, Suffolk y cruza de ambas, con peso vivo promedio de 55 ± 10 kg y un año de edad, las que se Distribuyeron al azar en cuatro tratamientos (T): T1) testigo (6 repeticiones); T2) suplemento con Se (0.2 ppm kg-1 alimento d-1) (5 repeticiones); T3) suplemento con vit E (400 U.I. animal-1) (5 repeticiones) y T4) suplemento con Se y vit E (5 repeticiones). El suplemento se dio cada día a las borregas,... |
| Tipo: Thesis |
Palavras-chave: Selenio; Vitamina E; GSH-Px; Gammaglobulinas; Borregas; Selenium; Vitamin E; Gamma-globulin; Ewes; Maestría; Ganadería. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/131 |
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| Registros recuperados: 17 | |
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