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首页> 外文期刊>Tropical Animal Health and Production >Growth and carcass traits of Creole goats under different pre-weaning, fattening and slaughter conditions
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Growth and carcass traits of Creole goats under different pre-weaning, fattening and slaughter conditions

机译：不同断奶前，育肥和宰杀条件下克里奥尔山羊的生长和car体性状

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摘要

Data of 198 male Creole kids were analysed to assess the main non-genetic sources of variation of their meat abilities. Basal diet was composed of tropical pasture (28 days): in FD (forage diet), kids received no supplement; in group MD (mixed diet) they were offered 360 g/day pellet, while in group PD (pasture diet) kids were reared at pasture without supplementation. Given a regular four-month interval of weaning within the flock, fixed ages at slaughter (AS) were 7, 11 and 15 months. Three slaughter weights (SW) were compared 17–18, 21–22 and 25–26 kg. The growth levels before weaning and the season of birth effects were added in the statistical analysis. The use of MD has a significant (P < 0.05) effect on almost all the body and carcass traits: 85% more ADG and carcass weight. The weights of fat tissues increased but represented only 4% of empty body weight. As expected, there were significant (P < 0.05) differences within the SW and AS classes that are discussed. Range of variations allow for suggesting further experiments or practical recommendations. The initial results: carcass yield (55%), conformation score (more than 3), fat cover score (less than 3), proportion of primal cuts (63%) or muscle/bone ratio (3–4 points) are a good incentive for the local sector.
机译：分析了198名克里奥尔男性儿童的数据，以评估其肉类能力差异的主要非遗传来源。基础饮食由热带牧场组成（28天）：在FD（牧草饮食）中，儿童不接受任何补充；在MD组（混合饮食）中，他们每天可吃360克小丸，而在PD组（牧草饮食）中，孩子们在牧场上饲养而无需补充。鉴于鸡群内的断奶间隔为四个月，固定的屠宰年龄为7、11和15个月。比较了三个屠宰重量（SW）17–18、21–22和25–26 kg。统计分析中添加了断奶前的生长水平和出生季节。 MD的使用对几乎所有身体和car体特征都有显着（P <0.05）效果：ADG和car体重量增加85％。脂肪组织的重量增加，但仅占空体重的4％。不出所料，所讨论的SW和AS类之间存在显着（P <0.05）差异。变化范围允许建议进一步的实验或实用建议。初步结果：car体收率（55％），构象得分（大于3），脂肪覆盖率（小于3），初次割伤的比例（63％）或肌肉/骨骼比例（3-4分）很好对地方部门的激励。

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