Aspiração folicular videolaparoscópica em ovinos: avaliação ovariana macro e microscópica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Turnover de carbono e a preferência alimentar de ovelhas por isótopos estáveis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Grãos e subprodutos da canola na alimentação de ovinos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Consumo e digestibilidade de silagem de híbridos de milho em função do estádio fisiológico e processamento

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Terminação de cordeiros semi-confinados em sistema de integração lavoura-pecuária

Pós-graduação em Zootecnia - FMVZ

Validação de sistema automatizado de refrigeração e congelação de sêmen ovino

Pós-graduação em Medicina Veterinária - FMVZ

Avaliação dos protocolos de sincronização de estro em ovelhas, com diferentes tempos de exposição aos progestágenos e distintas doses de eCG

Pós-graduação em Medicina Veterinária - FMVZ

Utilização de plasma rico ou pobre em plaquetas, associado ou não a enxerto ósseo cortical alógeno, na reparação cirúrgica de falha ulnar em ovinos

Pós-graduação em Cirurgia Veterinária - FCAV

Viabilidade e fertilidade de sêmen ovino criopreservado com glicerol e dimetilacetamida acrescido de trealose EDTA

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Substituição da fonte de forragem por farelo de babaçu em dietas de ovinos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Subprodutos de oleaginosas como fontes alternativas na alimentação de cordeiros em terminação

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação do testículo e da cauda do epidídimo de carneiros na pré-puberdade, na maturidade sexual, no criptorquidismo e na insulação escrotal: concentrações de testosterona plasmática e tecidual, histamina, fator de necrose tumoral-alfa e óxido nítrico

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Genotype effect on carcass and meat quality of lambs finished in irrigated pastures in the semiarid Northeastern Brazil

The aim of this study was to compare four genetic groups of sheep on the carcass and meat quality traits. Thirty-three contemporary and unrelated male lambs, all of single birth were used in the experiment, being thirteen from the Santa Inês (SI) breed, seven from the Brazilian Somali breed (BS), six from the Morada Nova (MN) breed and seven from the ½ Dorper - ½ Morada Nova (F1) crossbreed. The genotypes SI, BS and F1 presented similar performances in relation to hot and cold carcass weights, which values were 10.76±0.53kg and 10.46±0.52kg for SI, 9.20±0.73kg and 8.99±0.71kg for BS, and 9.35±0.73kg and 9.13±0.71kg for F1, respectively. The BS had a better hot carcass yield (47.10±0.88%) and cold carcass yield (46.00±0.87%). Better carcass conformation was observed in SI and F1 (2.73±0.12 and 2.50±0.17, respectively) while the BS presented a better finishing (3.29±0.20). The average for the rib eye area (REA) was 9.94±0.49cm², 8.66±0.67cm², 7.18±0.72cm² and 9.8±0.67cm², and for the carcass compactness index (CCI) it was 0.17±0.01kg/cm, 0.17±0.01kg/cm, 0.11±0.01kg/cm and 0.16±0,01kg/cm, for SI, SB, MN and F1, respectively. There were no significant differences between SI, BS and F1 regarding REA and CCI. Although, in general, the MN presented a relatively lower performance than the other genotypes, this breed had similar carcass yields and fat thickness when compared to SI and F1 and similar conformation and REA in comparison to the BS. Regarding meat quality, no differences were observed between genotypes, except for redness and cooking losses. It is concluded that no one group had a higher or lower performance in all traits analyzed. Moreover, for the management conditions employed in this study, there was evidence of greater specialization in meat production for genotypes SI, BS and F1 when compared to MN, although there are no substantial differences between the four groups regarding meat quality.

Comportamento ingestivo de cordeiros em confinamento, alimentados com dieta exclusiva de concentrado com diferentes porcentagens de proteína

The experiment was conducted to evaluate the ingestive behavior of feedlot lambs fed with an exclusive diet of concentrate with different percentages of protein (14, 16, 18, and 20%). A total of twenty four Santa Inês crossbred lambs, not castrated, with approximately 180 days of age, average live weight of 25kg, confined, in a completely randomized design, with four treatments and six repetitions. The time spent on feeding decreased linearly in 0.20 hours/day for each 1% increasing in protein percentage in the diet, the idleness increased linearly in 0.25 hours/day, and the total chewing decreased linearly in 0.25 hours/day. The increase in the protein percentage in the diet increased the feed efficiency linearly (kg DM and NDF/hour) in 0.038 and 0.005kg/hour, respectively, for DM and NDF fractions. However, the intake of dry matter (DM) and neutral detergent fiber (NDF), the rumination efficiency (kg DM and NDF/hour), as well as the period (nº /day) and the time (min) spent on feeding, ruminating and idling were not influenced by different protein percentages in the diet.

Carcass and meat traits of lambs fed by-products from the processing of oil seeds

We evaluated the effect of adding by-products from the processing of oil seeds in the diet of lambs on the carcass and meat traits. Twenty-four non-castrated weaned male Santa Inês lambs with approximately 70 days of age and initial average weight of 19.11 ± 2.12 kg were distributed into a completely randomized design. Treatments consisted of diets containing by-products with 70% of concentrate and 30% of tifton hay (Cynodon spp.) and were termed SM: control with soybean meal; SC: formulated with soybean cake; SUC: formulated with sunflower cake and PC: formulated with peanut cake. Diets had no effects on the carcass traits evaluated. There was no significant effect on the mean values of perirenal, omental and mesenteric fats (0.267, 0.552 and 0.470 kg, respectively) and there was no influence on the percentages of moisture, ether extract, crude protein or ash in the loin between experimental diets. Diets containing by-products from the processing of oil seeds did not change fatty acids found in lamb meat. The use of by-products from oil seeds provided similar carcass and meat traits, thus their use can be recommended as eventual protein and energy sources for feedlot lambs.