An objective method for predicting red meat yield in lamb carcasses is needed to accurately assess true carcass value. This study was performed to evaluate the ability of the lamb vision system (LVS; Research Management Systems USA, Fort Collins, CO) to predict fabrication yields of lamb carcasses. Lamb carcasses (n = 246) were evaluated using LVS and hot carcass weight (HCW), as well as by USD...

Article history: Received 21 April 2008 Received in revised form 31 October 2008 Accepted 5 November 2008 Sixty crossbred (Iberian dam×Duroc sire) females, 80 days of age (17.6±0.13 kg body weight, BW), was used to investigate the effect of castration on productive performance, carcass and meat quality and fatty acid profile of backfat (BF). There were 2 treatments (intact females, IF; castrate...

The article studied the meat productivity of Caucasian rams born singles and twins, as well influence introductory crossing breed queens with Dzhalginsky merinos 2Md-2S line on resulting crossbred offspring. control slaughter at 6 months age showed that carcass weight advantage was 20.6% in single over crossbreeds Merino x purebred peers 8.2%. also observed twins purebreds yield cuts first grad...

Betaine is donor of methyl groups and can partially replace methionine in diets for this purpose. The objective of this study was to evaluate three sources of betaine in partial substitution of methionine supplement in broiler diets. The Cobb-500 broiler chickens were allocated in a completely randomized experimental design with 5 treatments and 7 replicates of 49 birds each. The positive contr...

Four trials of identical experimental design were conducted to determine the effects of temperature, dietary Lys level, and dietary Arg:Lys ratios on performance and carcass yield of male broilers. Birds of a commercial strain were grown from 21 to 42 d of age in wire-floored finishing batteries placed in environmental chambers. The chambers were programmed to provide either a constant thermone...

Zilpaterol hydrochloride is a β-adrenergic agonist, which belongs to a group of compounds known as catecholamines. β-Adrenergic agonists activate β-receptors in muscle and fat causing increased lipolysis, decreased lipogenesis or increased protein accretion (Mersmann, 1998), or both. β-Adrenergic agonists vary greatly in their effect on meat animals. Supplementation of diets with β-agonists can...

Pale or pale, soft, and exudative-like meat can be caused by a decline in pH early postmortem while carcass temperatures are still high. This decrease in pH leads to protein denaturation, attributing to the pale color and poor water-holding capacity that is characteristic of this lesser quality meat. Marination with NaCl and phosphates has been shown to improve protein functionality, thereby re...

This investigation was carried out to determine the effects of different levels of digestible threonine on growth performance, dressing percentage and breast meat yield of broiler chicks. One hundred and twenty day old chicks were randomly divided into four groups A, B, C and D which were fed on four diets having (CP 21% and ME 2950 Kcal/kg) with four different levels of digestible threonine 0....