Performance, dry matter digestibility and feeding behavior of Holstein steers fed different diets in confinement

Semina: Ciências Agrárias

Guilherme Fernando Mattos Leão¹  Robson Kyoshi Ueno²  Mikael Neumann²  Julio Cezar Heker Junior²  Danúbia Nogueira Figueira³ 

[1] Universidade Estadual de Maringá;Universidade Estadual do Centro-Oeste;Universidade Federal do Rio Grande do Sul;

关键词: Average daily weight gain;    All grain diets;    Dry matter intake;    Feed conversion;   

DOI  :  10.5433/1679-0359.2015v36n3p1623

来源: DOAJ

【 摘 要 】

The aim of the study was to evaluate the performance, apparent digestibility of dry matter and feeding behavior of Dutch steers fed different diets in feedlot. Were used 36 Holstein calves, from the same herd, with an average of 192 days and an average body weight of 221kg age. The experimental diets consisted of: T1: 100% concentrate diet; T2: 55% concentrate diet + corn silage; and T3: 55% concentrate diet + oat hay, and six replicates, where each replicate was a stall with two animals. Was no significant difference between treatments, and the treatment consists of the 100% concentrate diet had higher performance results with an average daily gain of 1.350 kg day-1; and feed conversion of 5.28 dry matter intake of 6.84. We evaluated also the 100% diet also influenced the feeding behavior, and the time for rumination, food consumption and water intake are respectively 2.75; 1.14; 0.15 hours day-1. The digestibility of dry matter was also a significant difference to the diet 100%, and this was around 76.37%. The diet showed 100% concentrate in terms of performance, an interesting alternative for termination of Holstein steers.

【 授权许可】

Unknown