TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
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Item Desempenho e características de carcaça de cordeiros alimentados com palma forrageira ensilada ou in natura sob restrição ou não de água(2025-03-11) Amaral, Thiago Garcia do; Monnerat, João Paulo Ismério dos Santos; http://lattes.cnpq.br/3851426263880079; http://lattes.cnpq.br/8390297229951855A pecuária no semiárido brasileiro enfrenta desafios devido à escassez hídrica e à baixa disponibilidade de volumosos de qualidade, sendo a palma forrageira uma alternativa para a alimentação e hidratação dos ovinos. No entanto, sua forma de fornecimento pode impactar o desempenho dos animais. Este estudo avaliou os efeitos da palma forrageira in natura e ensilada, associadas ou não à restrição hídrica, sobre o desempenho produtivo e as características de carcaça de cordeiros da raça Santa Inês. Foram utilizados 40 cordeiros machos, não castrados, com idade entre 90 e 120 dias e peso inicial médio de 23,07 ± 2,45 kg, distribuídos em delineamento em blocos casualizados (DBC), num esquema fatorial 2x2, com dois tipos de volumoso (palma in natura + feno ou silagem de palma e feno) e duas formas de oferta hídrica (livre ou restrita). O período experimental foi de 75 dias, incluindo 19 dias de adaptação e 56 dias de coleta de dados. Os tratamentos foram dieta a base de silagem de palma e feno com ou sem restrição de água e outro a base de palma in natura + feno com ou sem restrição de água, ambos na proporção volumoso: concentrado de 65:35. sendo ofertada duas vezes ao dia, às 8h e às 16h. O consumo alimentar foi monitorado diariamente. Ao final do período experimental, os cordeiros foram submetidos a jejum sólido de 16 horas e abatidos. Após o abate, as carcaças foram pesadas feitas avaliações de medidas morfométricas, rendimento de carcaça, deposição de gordura perirrenal e espessura de gordura subcutânea. Os animais que receberam silagem de palma e feno apresentaram maior (P<0,05) desempenho, rendimento dos cortes lombo e serrote e melhor conformação e acabamento, em comparação aos que consumiram palma in natura + feno, entretanto não foi observado efeito (P>0,05) nos rendimentos de carcaça, pH, temperatura, EGS e avaliações morfometricas da carcaça. Por outro lado, a restrição de água não afetou (P>0,05) as características e rendimento de carcaça, engorduramento e as avaliações morfometricas, porém interferiu (P<0,05) negativamente no desempenho, conformação, acabamento e cortes cárneos lombo e serrote dos cordeiros em crescimento, evidenciando a importância do acesso irrestrito à água para o desenvolvimento adequado dos cordeiros. Conclui-se que a utilização da palma forrageira ensilada se mostra como alternativa mais eficiente em comparação à palma in natura, proporcionando maior desempenho produtivo dos animais. A restrição hídrica impacta negativamente o desempenho e as características de carcaça dos cordeiros, independentemente do tipo de volumoso ofertado.Item Consumo e digestibilidade de nutrientes em pequenos ruminantes alimentados com dietas contendo gérmen de milho e palma forrageira orelha de elefante mexicana (Opuntia stricta [Haw], Haw])(2024-09-30) Castello Branco, Natália Pereira; Carvalho, Francisco Fernando Ramos de; http://lattes.cnpq.br/8552194153767195; http://lattes.cnpq.br/6243605185116079The aim was to evaluate the effect of using corn germ and forage palm in diets for small ruminants on the consumption and digestibility of nutrients. Four male sheep and four male goats were used, castrated, fistulated and cannulated in the rumen, with an average initial body weight of 38 kg and 35 kg, respectively. The animals were kept in a confinement system in individual stalls (2,0m × 1,0m), with slatted floors and equipped with feeders and drinkers. A Latin square experimental design was used in a 2x4 factorial scheme.The experimental period lasted 88 days, with four experimental periods lasting 22 days each, 14 days for adaptation to the diets and management and 8 days for data and sample collection. The treatments were based on four experimental diets: without forage palm Opuntia stricta [Haw], Haw] (POEM) and corn germ (treatment - CONT); without (POEM) + corn germ (treatment - GIEM); with (POEM) and without corn germ (treatment- POEM); with (POEM) and corn germ (GIEM+POEM). The effects of species (E), treatment (T) and interaction effect of species with treatment (ExT) were evaluated, assuming significance at (P< 0,05). Related to the consumption, no effect of species (E) or interaction between species and treatments (ExT) for none of the variables (P>0,05). A significant effect (P<0,05) of treatments (T) was observed for the consuming variables of dry matter (DM), mineral matter (MM), crude protein (CP), ether extract (EE), total carbohydrates (TCH), non-fibrous carbohydrates (NFC) and total digestible nutrients (TDN). In which the diet containing (GIEM+POEM) promoted greater dry matter intake and other constituents, while the diet (GIEM) promoted lower consumption of dry matter, mineral matter, crude protein, total carbohydrates, non-fibrous carbohydrates and total digestible nutrients, but favored (P<0,05) greater consumption of ether extract along with the diet (GIEM+POEM). The digestibility coefficients of dry matter, crude protein, ether extract and neutral detergent fiber were not influenced by the association of forage cactus with full- fat corn germ (P>0,05), however, significant values were observed (P<0.05) for the organic matter and non-fibrous carbohydrates digestibility coefficients.Item Perfil metabólico sanguíneo de cordeiros lactentes alimentados com leite bovino complementar(2024-10-01) Silva, Davi Tavares da; Monnerat, João Paulo Ismério dos Santos; http://lattes.cnpq.br/3851426263880079; http://lattes.cnpq.br/2100833254390107The profitability of beef sheep farming is strongly influenced by annual lamb production. Lactating animals with low weight gain are associated with competition between lambs born from multiple births or insufficient milk production, resulting in increased mortality and a decreased weaning rate. Milk supplementation is one of the alternatives to guarantee the growth and development of lactating animals affected by some adverse process in the breast milk produced, such as mastitis. The aim of this study was to evaluate the metabolic profile of protein, energy, liver enzymes and minerals in lambs supplemented with cow's milk. To this end, 16 lactating lambs aged between birth and 30 days were used. They were divided into two groups: one group received complementary bovine milk, with a daily limit of 500 mL, while the other group was exclusively breastfed. Both groups were managed in collective pens and subjected to the same daily management conditions. The lambs were weighed and blood samples were taken to assess the metabolic profile of protein, energy, liver enzymes and minerals. All the results were subjected to analysis of variance to compare the means of each parameter, using a significance level of 5%. The average daily consumption of cow's milk for the artificially supplemented lambs was 324 ± 183 mL. Serum concentrations of total protein, albumin, urea and creatinine showed no difference (P > 0.05) between conventionally breastfed and artificially supplemented lambs. On the other hand, the parameters of cholesterol, LDL, HDL and fructosamine showed a difference (P > 0.05), indicating the influence of supplementation with bovine milk and the absorption of nutrients. This is due to the biochemical composition of milk and the utilization of the energy and protein fractions of the food. Considering that the use of cow's milk as a supplement for neonatal sheep that have suffered some quantitative restriction in the availability of mother's milk or colostrum can compromise the animals' immune supply. The study therefore highlights the need to create strategies to supplement the lambs' diet and ensure good development by adjusting the metabolic balance.Item Aspectos nutricionais e seus efeitos no bem-estar e desempenho de equinos de vaquejada(2024-09-27) Sá, Amanda Regina Bertho de; Manso Filho, Hélio Cordeiro; http://lattes.cnpq.br/5631206025493479; http://lattes.cnpq.br/9395366050331432Vaquejada, a traditional equestrian sport in Northeast Brazil, imposes significant physical demands on horses, necessitating quick accelerations, sharp turns, and sudden stops. This study emphasizes the critical role of nutritional management in ensuring both the well-being and athletic performance of these animals. Utilizing questionnaires distributed at vaquejada events, we assessed the Nutrition domain within the framework of the Five Domains Model of animal welfare. The research highlighted the importance of consistent feeding practices for maintaining digestive health and preventing metabolic disorders. Additionally, it examined legal regulations pertaining to animal welfare in equestrian competitions, advocating for the alignment of sporting practices with animal protection standards. The study evaluated water and feed quality, quantity, accessibility, and storage conditions, revealing that most parameters received “good” to “excellent” ratings. Ultimately, effective nutritional management emerges as a key determinant for the health and performance of horses, fostering both their welfare and the sustainability of vaquejada.