Degradability of dry matter and crude protein of dry grains and wet grain silages from different processing corn hybrids (Zea mays)

Boletim de Indústria Animal

Wagner dos Reis¹  Erikelly Aline Ribeiro de Santana²  Josineudson Augusto II de Vasconcelos Silva²  Ciniro Costa²  Marco Aurélio Factori²  Cristiano Magalhães Pariz²  Janaína Conte Hadlich²  Marina Gabriela Berchiol da Silva²  Paulo Roberto de Lima Meirelles²  Kátia de Oliveira³ 

[1] Escola Superior de Agronomia de Paraguaçu Paulista, Paraguaçu Paulista, SP;Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Melhoramento e Nutrição Animal, Botucatu, SP;Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Zootecnia, Dracena, SP;

关键词: silagem de grãos úmidos;    degradação ruminal;    granulometria;    valor nutritivo;   

DOI  :  10.17523/bia.v70n3p269

来源: DOAJ

【 摘 要 】

The objective of this work was to evaluate the effect of processing two corn hybrids conserved, dry and humid grains, the dry matter (DM) and crude protein (CP) degradability in situ. The particle size was determined and difference was verified in MGD (Medium Geometric Diameter) of processed ingredients. Three sheep were used with rumen canulated, in a completely randomized design, using a factorial outline 2 x 2 x 3, being two corn hybrid, two conservation methods and three processing forms (whole, coarsely and finely ground), with five times of incubation (3, 6, 12, 24 and 48 hours). The fraction A in SDC (silage of dent corn) of DM was superior to GDC (grain of dent corn) in all of the particles size. The ensiling process increased the DM solubility, reducing the fraction B in comparison to dry grain. The values regarding the fractions DP and DE the 5% per hour of the protein, were larger for SDC and GDC, it presents a decreasing when the incubation time advances. The fermentation rate was superior for SDC and GDC. The ensiling process has positive effect in the decreasing of DM and CP in comparison to GDC.

【 授权许可】

Unknown