Uso de virginiamicina em equinos mestiços submetidos a dietas com alto teor de carboidratos

• Ano de defesa: 2009
• Autor(a) principal: Castro, Marcos Vinícius Alvim de
• Orientador(a): Leão, Maria Ignez
• Banca de defesa: Vendramini, Orlando Marcelo , Guimarães, José Domingos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Zootecnia
• Departamento: Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul
• País: BR
• Palavras-chave em Português: Equino; Carboidrato; Virginiamicina
• Palavras-chave em Inglês: Horse; Carbohydrate; Virginiamycin
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
• Link de acesso: http://locus.ufv.br/handle/123456789/5602

We used six horses, healthy female, adult, 3 / 4 and 1 / 2 blood Breton, with an average weight of 400 kg in a Latin square experimental design 3 X 3, with the objective of determining the levels of virginiamycin to control parameters physiological and hematological animals treated with concentrates with high content of carbohydrates. The animals were divided into three experimental groups and two animals per group. Each experimental cycle consisted of 3 days of collection and 12 days of rest. At the end of this period, the animals were then exchanged group so that at the end of the experiment, all animals underwent all the treatments offered. Group 1 (control) received basal diet rich in carbohydrates, consisting of corn, soybean meal and mineral salt. Groups 2 and 3 received the same basal diet and 2 and 6 g/100 kg body weight of virginiamycin, respectively, via nasogastric tube. As forage, all animals received hay of Tifton 85 (Cynodon dactylon) ad libitum. Collections were made for the evaluation of blood serum concentrations of glucose and lactic acid. Samples of feces were also collected for measurement of moisture contents and pH. Other parameters such as heart rate, respiratory rate and rectal temperature were measured temperature of the hull in order to detect clinical changes resulting from this diet. Despite the large number of animals received concentrate rich in carbohydrates, the levels were not sufficient to trigger a physiological response in the face of challenge proposed. The virginiamycin administered via nasogastric tube, in doses of 2 and 6 g / kg body weight divided into two doses daily, with an interval of 12 hours, caused no change in clinical and laboratory parameters measured in this study, it can be used in horses.