Blend of secondary metabolites from mesquite to improve nutrient digestibility, microbial protein, efficient use of nitrogen, ruminal parameters, and blood metabolites in sheep.

Autor: Barbosa, Steyce Neves, da Silva, José Ricardo Coelho, Torres, Thaysa Rodrigues, Véras, Robson Magno Liberal, de Carvalho, Adriana Lima, de Souza, Abraão Jeferson, dos Santos Neto, Elias Leocádio, de Carvalho Sobral, Gilberto, Feitoza, Elaine Rosa Fagundes, Morais, Italo Marcos Vasconcelos, de Souza, Evaristo Jorge Oliveira
Zdroj: Tropical Animal Health & Production; Oct2022, Vol. 54 Issue 5, p1-6, 6p
Abstrakt: Although chemical additives are able to improve the efficiency of ruminal fermentation, they can leave residues in the meat. However, a blend of secondary metabolites can improve ruminal fermentation without harming the population welfare. Five levels (0.0, 1.5, 3.0, 4.5, and 6.0 g/day) of a blend of secondary metabolites from mesquite extract in sheep feed to promote increases in the nutritional value, ruminal parameters, nitrogen (N) use efficiency, microbial protein (MP) synthesis, and blood metabolites. Ten intact male Santa Inês sheep with average body weight of 55 ± 9.81 kg were used in a 5 × 5 Latin square design, replicated twice. There was a quadratic response of the digestibility of dry matter (DM), organic matter (OM), crude protein (CP), and total digestible nutrients (TDN). Microbial protein concentrations, MP synthesis efficiency, propionic acid levels, and acetic/propionic acid ratio also showed a quadratic response. The blend promoted a quadratic effect on plasma glucose and lactate levels. On the other hand, it decreased the concentrations of ammoniacal nitrogen, plasma urea, and plasma cholesterol. It is recommended to supply a blend of secondary metabolites at 3.43 g/day. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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