SciELO - Scientific Electronic Library Online

vol.43 issue9Selection of arbuscular mycorrhizal fungi for the forage peanut intercropped with signal grassLactic-acid bacteria isolated from the intestinal tract of Nile tilapia utilized as probiotic author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921


QUEIROZ, Mário Adriano Ávila et al. Lamb performance and estimation of starch digestibility of diets with different protein sources. Pesq. agropec. bras. [online]. 2008, vol.43, n.9, pp.1193-1200. ISSN 0100-204X.

The objective of this work was to evaluate the influence of protein sources on feedlot lambs performance, carcass and meat characteristics, and to estimate starch digestibility of high grain diets. Twenty eight Santa Inês ram lambs were selected in a complete randomized block design, according to body weight and age in the beginning of the experiment. Protein sources were the following meals: soybean, peanut, canola, and cottonseed in isonitrogenous diets with 90% concentrate and 10% roughage (coast-cross hay). Four ram lambs (48 kg) were used to determine starch digestibility in a 4x4 latin square design, and starch digestibility was estimated by fecal concentration of starch. There were no differences (p>0.05) for dry matter intake, average daily gain, feed conversion, carcass characteristics and meat quality, among the protein sources evaluated. Determination coefficient for starch digestibility was 93%. Fecal starch content is an accurate indicator of the starch digestibility estimation in lambs feeding high grain diets, independently of the protein source used.

Keywords : fecal starch; carcass characteristics; meat characteristics; sheep.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License