维生素A和维生素K_3对产蛋后期蛋鸡生产性能、蛋品质、肝脏指数和脂质代谢的影响
Effects of Vitamin A and Vitamin K_3 on Performance, Egg Quality, Liver Index and Lipid Metabolism of Laying Hens during Later Laying Period
查看参考文献30篇
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文摘
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本试验旨在研究维生素A和维生素K_3对产蛋后期蛋鸡生产性能、蛋品质、肝脏指数和脂质代谢的影响。采用3×3因子设计,选取88周龄罗曼粉蛋鸡1 080羽,随机分成9个处理,每个处理8个重复,每个重复15只鸡。饲粮维生素A添加水平分别为0、7 000和14 000 IU / kg,维生素K_3添加水平分别为0、2.0和4.0 mg / kg。试验期为8周。结果表明:1)维生素A和维生素K_3对产蛋后期蛋鸡生产性能和鸡蛋品质无显著影响( P>0.05) 。2)与添加0 IU / kg维生素A相比,添加7 000和14 000 IU / kg维生素A显著提高了第4周血清高密度脂蛋白和极低密度脂蛋白含量( P<0.05),显著降低了第8周血清甘油三酯( TG)含量和肝脏指数( P<0.05);与添加0和2.0 mg / kg维生素K_3相比,添加4.0 mg / kg维生素K_3显著降低了第8周血清TG含量。3)与添加7 000 IU / kg维生素A相比,添加14 000 IU / kg维生素A显著降低了肝脏总胆固醇和TG含量( P<0.05) 。4)与添加0 IU / kg维生素A相比,添加14 000 IU / kg维生素A显著下调了肝脏过氧化物酶体增殖物激活受体γ和脂肪酸合成酶mRNA相对表达量( P<0.05),显著上调了肝脏钠葡萄糖共转运载体1 mRNA相对表达量( P<0.05) 。5)维生素A和维生素K_3对血清TG含量和肝脏指数存在显著交互作用( P<0.05) 。综上所述,饲粮添加14 000 IU / kg维生素A和4.0 mg / kg维生素K_3可以改善产蛋后期蛋鸡的脂质代谢功能,降低肝脏指数,但不影响生产性能和蛋品质。 |
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其他语种文摘
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This experiment was conducted to study the effects of vitamin A and vitamin K_3 on performance, egg quality, liver index and lipid metabolism of laying hens during later laying period. In a 3×3 factorial arrangement, a total of 1 080 Roman laying hens (88-week-old) were allotted into 9 treatments with 3 replicates per treatment and 15 hens per replicate. Dietary vitamin A supplemental levels were 0, 7 000 and 14 000 IU / kg, respectively, and vitamin K_3 supplemental levels were 0, 2.0 and 4.0 mg / kg, respectively. The experiment lasted for 8 weeks. The results showed as follows: 1) Vitamin A and vitamin K_3 had no significant effects on performance and egg quality of laying hens during later laying period (P>0.05). 2) Compared with 0 IU / kg vitamin A supplementation, the 7 000 and 14 000 IU / kg vitamin A supplementation significantly increased the contents of high-density lipoprotein and very low-density lipoprotein in serum at week 4 (P <0.05), and significantly decreased the serum triglyceride (TG) content and liver index at week 8 (P<0.05).;compared with 0 and 2.0 mg / kg vitamin K_3 supplementation, the 4.0 mg / kg vitamin K_3 supplementation significantly decreased the serum TG content at week 8 (P<0.05). 3) Compared with 7 000 IU / kg vitamin A supplementation, the 14 000 IU / kg vitamin A supplementation significantly decreased the contents of total cholesterol and TG in liver (P<0.05). 4) Compared with 0 IU / kg vitamin A supplementation, the 14 000 IU / kg vitamin A supplementation significantly down-regulated the mRNA relative expression levels of peroxisome proliferator activated receptor γ and fatty acid synthetase in liver (P<0.05), and significantly up-regulated the liver sodium glucose cotransporter 1 mRNA relative expression level (P<0.05). 5) Vitamin A and vitamin K_3 had significant interaction on serum TG content and liver index (P<0.05). In conclusion, dietary supplementation of 14 000 IU / kg vitamin A and 4.0 mg / kg vitamin K_3 can improve the function of lipid metabolism of laying hens during later laying period, decrease the liver index, but it does not affect the performance and egg quality. |
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来源
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动物营养学报
,2021,33(7):3863-3872 【核心库】
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DOI
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10.3969/j.issn.1006-267x.2021.07.028
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关键词
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维生素A
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维生素K_3
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蛋鸡
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肝脏指数
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脂质代谢
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地址
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武汉轻工大学, 动物营养与饲料科学湖北省重点实验室, 武汉, 430023
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-267X |
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学科
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畜牧、动物医学、狩猎、蚕、蜂 |
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基金
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国家重点研发计划课题
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文献收藏号
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CSCD:7014521
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