Diet crude protein reduction on follicular fluid and cumulus-oocyte complexes of mid-lactating Girolando cows

Autor: Luciano de Rezende Carvalheira, Gustavo Bervian dos Santos, null Jasmim, Clóvis Ribeiro Guimarães, Mariana Magalhães Campos, Fernanda Samarini Machado, Alexandre Mendonça Pedroso, Tadeu Eder da Silva, Luiz Altamiro Garcia Nogueira, André Luís Rios Rodrigues, Bruno Campos de Carvalho
Přispěvatelé: LUCIANO DE REZENDE CARVALHEIRA, Universidade Federal Fluminense, GUSTAVO BERVIAN DOS SANTOS, Universidade Federal Fluminense, JASMIM, Universidade Federal do Rio de Janeiro, CLÓVIS RIBEIRO GUIMARÃES, Universidade Federal de Minas Gerais, MARIANA MAGALHAES CAMPOS, CNPGL, FERNANDA SAMARINI MACHADO, CNPGL, ALEXANDRE MENDONÇA PEDROSO, AMP Consultoria, TADEU EDER DA SILVA, University of Wisconsin-Madison, LUIZ ALTAMIRO GARCIA NOGUEIRA, Universidade Federal Fluminense, ANDRÉ LUÍS RIOS RODRIGUES, Universidade Federal Fluminense, BRUNO CAMPOS DE CARVALHO, CNPGL.
Rok vydání: 2022
Předmět:
Zdroj: Animal Reproduction, Volume: 19, Issue: 3, Article number: e20210088, Published: 12 SEP 2022
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
ISSN: 1984-3143
1806-9614
Popis: This study evaluated the effect of crude protein (CP) reduction in four diets (156, 139, 132, and 127 g Kg-1 DM) maintaining constant metabolizable protein (188 g/day) on the follicular fluid and cumulus-oocyte complexes of mid-lactating Girolando cows. Twenty-two Girolando cows with average of 21.55 ±3.19 L daily milk yield, 105.30 ±22.62 days in lactation and 3.22 ±0.03 body condition score were selected. To reduce CP in diets and maintain constant metabolizable protein, urea and soybean meal were gradually replaced by lignosulfonate-treated soybean meal (SoyPass®, Cargill), resulting in an increase in rumenundegradable protein and a reduction in rumen degradable protein. A linear and quadratic reduction was observed in the plasma and follicular fluid urea nitrogen concentration following CP reduction, with the most intense reduction occurring in the 127 g Kg-1 DM group (p
Databáze: OpenAIRE
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