In situ degradability and selected ruminal constituents of sheep fed with peanut forage hay

Autor(es)

Fernandes, Gisele Machado ^[1] ; Possenti, Rosana Aparecida ^[2] ; de Mattos, Waldssimiler Teixeira ^[3] ; Schammass, Eliana Aparecida ^[4] ; Ferrari Junior, Evaldo ^[5]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Genet, Fac Med Ribeirao Preto, BR-14049 Ribeirao Preto, SP - Brazil

^[2] APTA SAA, Lab Referencia Nutr Anim, Inst Zootecnia, Nova Odessa, SP - Brazil

^[3] APTA SAA, Lab Referencia Forragicultura, Inst Zootecnia, Nova Odessa, SP - Brazil

^[4] APTA SAA, Lab Metodol Quantitat Pesquisa Zootecnia, Inst Zootecnia, Nova Odessa, SP - Brazil

^[5] APTA SAA, Ctr Pesquisa & Desenvolvimento Nutr Anim & Pastag, Inst Zootecnia, Nova Odessa, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ARCHIVES OF ANIMAL NUTRITION; v. 67, n. 5, p. 393-405, OCT 1 2013.
• Citações Web of Science: 3

Resumo

Because legumes are a very important feed source for ruminants, the aim of this study was to evaluate the ideal inclusion level of hay Arachis pintoi cv. Belmonte in sheep diets by measuring the dry matter intake (DMI), concentration of volatile fatty acids, ammonia-nitrogen concentration, ruminal pH and the in situ degradability of dry matter (DM) and crude protein (CP). In the experiment with four sheep, a 4x4 Latin Square design was used with four periods and four treatments (0%, 30%, 60% and 100% Arachis replacing grass hay). Significant interactions were observed between treatments and sampling times for ammonia-nitrogen and acetate, propionate and butyrate concentration and the acetate:propionate ratio. The ruminal pH and total volatile fatty acids concentration were not affected by interaction between treatments and sampling time. The degradation of DM and CP was similar, rising with the increasing content of Arachis, showing a linear effect. The treatment containing 60% of Arachis showed best results, with good levels of daily weight gain and higher ruminal concentrations of volatile fatty acids. The legume showed high levels of CP, high digestibility and appropriate levels of fibre, with excellent standards of degradation and ruminal characteristics. The use of the legume Arachis for ruminants is a promising option of nutrient supply to meet production demands of these animals. (AU)

• Processo FAPESP: 10/11145-1 - Degradabilidade in situ e parâmetros ruminais do feno de Arachis pintoi cv. Belmonte em ovinos
• Beneficiário: Rosana Aparecida Possenti
• Modalidade de apoio: Auxílio à Pesquisa - Regular