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首页> 外文期刊>Tropical Animal Health and Production >Partial substitution of barley for corn: effect on 'Hamra' lamb growth performance, carcass and meat characteristics
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Partial substitution of barley for corn: effect on 'Hamra' lamb growth performance, carcass and meat characteristics

机译：大麦部分替代玉米：对“ Hamra”羔羊生长性能，car体和肉特性的影响

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The aim of this study was to investigate the effect of two kinds of given diets on growth, on some carcass characteristics and on the major meat nutrients of local Algerian sheep breed. The investigated sheep breed called "Hamra" is one of the most famous breeds in Algeria. Among one 106 animals, 40 lambs were selected according to their age, similar livestock characteristics and body weight. The samples were divided into two equal groups: control and experimental lambs according to their live weight; 24.63 +/- 0.47 and 24.35 +/- 0.64 kg, respectively. Both groups were fed with two varieties of concentrate diets: corn diet based for the first group of control lambs (n = 20) and corn substituted by barley (Variety Sa da 183) for the second experimental group lambs (n = 20). Both diets were supplemented with 200 g straw of barley/animal/ration. The chemical analysis of diets showed an elevated crude fibre content in the commercial concentrate. However, the experimental concentrate contained higher amounts of calcium. After 59 days of fattening, no significant difference was found among the two studied groups on the growth performance (p > 0.05), showing the same final body weight. In contrast, a significant difference was found (p a parts per thousand currency signaEuro parts per thousand 0.001) in relation to the cost of the given diet. This could affect the price of the produced meat. At 37.85 +/- 0.78 kg live weight, 10 lambs fed with experimental concentrate were slaughtered. The dressing percentage was 46.65 %, with 2.49 % of carcass shrink. Furthermore, an interesting percentage of total muscle was obtained (63.73 %) with a good carcass conformation scoring 9.56. Compared to other breed sheep, Hamra carcass could be considered as the most valuable one economically.
机译：这项研究的目的是研究两种特定日粮对阿尔及利亚当地绵羊品种的生长，某些car体特性以及主要肉类营养成分的影响。被调查的称为“ Hamra”的绵羊品种是阿尔及利亚最著名的品种之一。在106只动物中，根据它们的年龄，相似的牲畜特征和体重选择了40只羔羊。样品根据其活重分为两组：对照组和实验羊。 24.63 +/- 0.47公斤和24.35 +/- 0.64公斤两组均饲喂两种浓缩饲料：第一组对照羔羊（n = 20）以玉米饮食为主，第二实验组羔羊（n = 20）以大麦替代玉米（Variety Sa 0.05），表明最终体重相同。相反，相对于给定饮食的成本，发现了显着差异（每千分之一货币符号表示欧元每千分之一欧元）。这可能会影响所生产肉的价格。在37.85 +/- 0.78 kg活重下，宰杀了10只饲喂实验浓缩物的羔羊。修整率为46.65％，car体收缩率为2.49％。此外，获得了有趣的总肌肉百分比（63.73％），car体构象得分为9.56。与其他品种的绵羊相比，哈姆拉car体在经济上可以认为是最有价值的绵羊。

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