Performance of dairy cattle subjected to different food strategies during the growing and finishing phases

Autor: Marcondes Dias de Freitas Neto, Juliano José de Resende Fernandes, João Restle, João Teodoro Pádua, Pedro Leonardo de Paula Rezende, Fabrícia Rocha Chaves Miotto, Kíria Karolline Gomes Moreira
Jazyk: English<br />Portuguese
Rok vydání: 2014
Předmět:
Zdroj: Semina: Ciências Agrárias, Vol 35, Iss 4, Pp 2117-2128 (2014)
Druh dokumentu: article
ISSN: 1679-0359
1676-546X
DOI: 10.5433/1679-0359.2014v35n4p2117
Popis: The objective of this study was to evaluate the performance of the crossbreed animals, in feedlot, previously fed with different supplemented energetic systems and Brachiaria brizantha pasture. The treatments were: TAA – high level intake of energy during the growing and finishing phases; TAM – high intake of energy during the growing phase and medium intake of energy during of the finishing phase; TMA – medium intake of energy during growing phase and high intake of energy during finishing phase; TMM – medium intake of energy during the growing and finishing phases. During the growth phase the animals received supplementation of 1.0% and 0.5% body weight of animals. In the finishing phase, the animals were fed diets containing 50% of concentrate (medium intake of energy, TDN = 71%) or 80% of concentrate (high intake of energy, TDN = 80%) in the dry matter of the total diet. The animals of the TAA and TAM treatments had higher average body weight at the beginning of feedlot due to that achieved average slaughter weights of 42 and 21 days less than the other treatments. The animals of the TAA and TAM treatments were more dry matter intake (P 0.05) between treatments for these measures at the end of the termination. The high level of energy supplementation during the growing phase allowed animals to a greater initial weight input in confinement, and consequently, the best performance.
Databáze: Directory of Open Access Journals
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