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

Autor: Wagner dos Reis, Ciniro Costa, Paulo Roberto de Lima Meirelles, Marina Gabriela Berchiol da Silva, Marco Aurélio Factori, Janaína Conte Hadlich, Kátia de Oliveira, Erikelly Aline Ribeiro de Santana, Cristiano Magalhães Pariz, Josineudson Augusto II de Vasconcelos Silva
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2013
Předmět:
Zdroj: Boletim de Indústria Animal, Vol 70, Iss 3, Pp 269-280 (2013)
Druh dokumentu: article
ISSN: 1981-4100
21622051
DOI: 10.17523/bia.v70n3p269
Popis: 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.
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