| 叶慧，雷建平，郑玲玲，冯定远，左建军.25-OH-D3对42~63日龄黄羽肉鸡屠宰性能、肉品质和维生素D代谢产物的影响[J].广东农业科学,2013,40(10):109-112 |
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25-OH-D3对42~63日龄黄羽肉鸡屠宰性能、肉品质和维生素D代谢产物的影响 |
| Influence from 25-OH-D3 on slaughter performance, meat quality and vitamin D metabolites of 42~63 day-age yellow-fearthered broilers |
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| DOI： |
| 中文关键词: 25-OH-VD3曰屠宰性能 肉品质 黄羽肉鸡 |
| 英文关键词: 25-OH-D3 carcass traits meat quality yellow-feathered broiler |
| 基金项目:国家自然科学基金(30901033)；广东省科技计划项目（2010B020306002） |
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| 摘要点击次数: 1263 |
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| 中文摘要: |
| 以低钙、磷水平为基础设计日粮，研究日粮中添加25-OH-D3对42~63日龄黄羽肉鸡屠宰性能、肉品质和VD代谢产物的影响。试验选用42日龄黄羽肉公鸡1200只，随机分成4组，每组5个重复，每个重复60只鸡。处理组1~4中25-OH-D3的添加水平分别
为0、50、70和90μg/kg。结果表明，相对于对照组，饲粮中添加不同水平的25-OH-D3对42~63日龄黄羽肉鸡的屠宰性能影响不显著；可提高内脏器官指数袁促进内脏器官发育，但90μg/kg剂量对外周免疫器官发育有抑制趋势；25-OH-D3对黄羽肉鸡肉色、系水力和嫩度具有一定的改善作用，对pH值影响不显著；血清和肾脏1,25-(OH)2-D3显著升高，且与25-OH-D3添加量成正相关性，肝脏25-OH-D3含量变化不显著。结果显示，降低日粮钙磷水平，日粮中添加25-OH-D3对后期黄羽肉鸡内脏器官发育和肉品质具有一定改善作用，其中70μg/kg25-OH-D3添加量的效果最佳。 |
| 英文摘要: |
| This research was intended to use the low calcium and phosphorus levels as foundation to design diet, study the influence from 25-OH-D3 on slaughter performance, meat quality and vitamin D metabolites of 42~63 days-age yellow-feathered broiles. We selected 1200 42-days-age male yellow-feathered broiles, divided into 4 random groups, each group had 5 repeat, each repeat included 60 chicken.25-OH-D3 levels in experimental groups were 0, 50, 70, 90 μg/kg respectively.The results showed that different 25-OH-D3 levels had little influence on 42~63 days-age yellow-feathered broiler's slaughtering performance compared with matched group（P>0.05）;25-OH-D3 could improve the internal organs index, and promote the development of the internal organs, but 90 μg/kg dosage had the tendency of inhibiting peripheral immune organ growth; it certainly improved yellow-feathered broiler's color of meat, water-holding capacity and tenderness, and had little influence on pH （P>0.05）; serum and kidney 1,25-(OH)2-D3 increased significantly (P<0.05),which showed positive correlations with amount of 25-OH-D3, the content of 25-OH-D3 in liver was not significant（P>0.05）. The results indicated that when calcium and phosphate levels in diets were reduced, and 25-OH-D3 added to ration, the growth of internal organ and meat quality had certainly improvement, of which 90 滋g/kg 25-OH-D3 dosage got the best results. |
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