Performance of rearing female hoggets under different feeding strategies

Revista Brasileira de Zootecnia

Felipe Jochims²  Cleber Cassol Pires¹  Alexandre Lins¹  Luana Cortez Zago¹  Guilherme Mello Jahn¹  Anna Carolina Cerato Confortin² 

[1] ,UFRGS Programa de Pós-Graduação em ZootecniaRS

关键词: average daily gain;    body condition score;    cassava meal;    corn gluten meal;    mature weight;    Pennisetum americanum (L.) leeke;    escore de condição corporal;    farinha de mandioca;    ganho médio diário;    glúten de milho;    peso adulto;    Pennisetum americanum (L.) leeke;   

DOI  :  10.1590/S1516-35982011000600019

来源: SciELO

【 摘 要 】

The objective of this study was to evaluate the performance of Texel × Ile de France female hoggets on pearl millet (Pennisetum americanum (L.) Leeke) pastures fed supplementation with cassava meal or corn gluten. It was used a completely randomized experimental design, with three treatments (feed strategies) and two area replications. Feed strategies consisted of supplementation of the pastures with cassava meal or corn gluten in comparison to exclusive pasture. Supplements were given daily at 9:00 a.m. at quantity of 1% of the body weight (BW). The lambs on corn gluten supplementation presented greater daily weight gain and greater per area weight gain. Use of supplementation did not permit to increase pasture stocking rate, however. In vitro digestibility and chemical composition of the harvested forage was similar (crude protein, neutral detergent fiber) among groups. At the end of the experiment, all feed strategies were efficient in promoting weight greater than 60% of the mature weight, showing that the lambs are able for mating. Body condition score (BCS) of lambs under cassava meal supplementation was 3.0 whereas body composition score of the other lambs was 2.8. Exclusive use of pearl millet can provide dry matter requirement of the lambs.

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