Carcass Traits in Sheep Receiving Acacia mearnsii Condensed Tannin Extract to Control Endoparasites

Helder Louvandini, Franceska Cenci, Juliano Issakowicz, Ana Claudia Sampaio, Tiago Paim, Samuel de Araújo, Daniel Costa, Adibe Abdalla and Concepta McManus

Journal of Agricultural Science, 2014, vol. 6, issue 10, 128

Abstract: We evaluated carcass traits from twenty 6-month-old Santa Ines lambs under tropical grazing (Andropogon gayanus) receiving condensed tannin from Acacia mearnsii once a week for 13 weeks to control endoparasites. Ten animals were treated with tannin (TG) and the remainder (10 animals) received a diet without tannin (CG). At slaughter, the following measurements were taken- live weight, carcass weight, half-carcass weight, carcass length, fat cover, skin weight and thickness, weight of thoracic and abdominal organs, scrotum and commercial cuts. The 12th rib was removed for determination of muscle, fat and bone percentages, as well as their chemical analysis. Skin thickness was greater and commercial cuts (loin and rib/belly) were lower in TG. Animals that received tannin had a lower percentage of ether extract and higher protein in the 12th rib. Condensed tannin from Acacia mearnsii did not impair carcass trait quality but decreased ether extract and increased protein content.

Date: 2014
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