中国农业科学 ›› 2021, Vol. 54 ›› Issue (16): 3549-3560.doi: 10.3864/j.issn.0578-1752.2021.16.016

• 畜牧·兽医·资源昆虫 • 上一篇    

快大型黄羽肉种鸡VD3需要量研究

王一冰(),陈芳,苟钟勇,李龙,林厦菁,张盛,蒋守群()   

  1. 广东省农业科学院动物科学研究所/畜禽育种国家重点实验室/农业农村部华南动物营养与饲料重点实验室/广东省畜禽育种与营养研究重点实验室,广州 510640
  • 收稿日期:2020-06-29 接受日期:2020-09-27 出版日期:2021-08-16 发布日期:2021-08-24
  • 通讯作者: 蒋守群
  • 作者简介:王一冰,E-mail: wangyibing77@163.com
  • 基金资助:
    财政部和农业农村部:国家现代农业产业技术体系(CARS-41);广东省重点领域研发计划(2020B0202090004);国家自然科学基金青年基金(31802104);广东省自然科学基金(2021A1515012412);广东省自然科学基金(2021A1515010830);广东省农业科学院科技计划(202106TD);广东省农业科学院科技计划(R2019PY-QF008);广东省农业科学院科技计划(R2018QD-076)

Requirement of Vitamin D3 on Fast-Growing Yellow-Feathered Breeder Hens

WANG YiBing(),CHEN Fang,GOU ZhongYong,LI Long,LIN XiaJing,ZHANG Sheng,JIANG ShouQun()   

  1. Institute of Animal Science, Guangdong Academy of Agricultural Sciences/State Key Laboratory of Livestock and Poultry Breeding/ Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640
  • Received:2020-06-29 Accepted:2020-09-27 Online:2021-08-16 Published:2021-08-24
  • Contact: ShouQun JIANG

摘要:

【目的】通过研究饲粮中添加不同水平维生素D3(VD3)对快大型黄羽肉种鸡及其子代肉鸡生产性能、胫骨指标与钙磷代谢的影响,确立黄羽肉种鸡VD3需要量,为黄羽肉种鸡营养需要量的制定提供科学依据。【方法】试验采用单因素随机分组设计,选用720只48周龄快大型岭南黄羽肉种母鸡,根据体重和产蛋率一致原则分为6个处理组,每组6个重复,每重复20只,各处理分别饲喂添加0(对照组)、800、1 600、2 400、3 200、4 000 IU·kg-1 VD3的试验饲粮,试验期8周。种鸡饲养试验结束后选取种蛋孵化,子代肉鸡按照种鸡的组别进行分组分栏饲喂(基础饲粮中含1 000 IU·kg-1VD3),试验期63d。【结果】(1)与对照组相比,添加800 IU·kg-1 VD3显著提高平均蛋重(P<0.05);添加1 600与3 200 IU·kg-1 VD3显著增加种蛋的蛋壳强度(P<0.05);添加1 600 IU·kg-1 VD3增加蛋壳厚度(P<0.05);添加4 000 IU·kg-1 VD3显著提高种鸡脱脂胫骨比例与骨密度(P<0.05),添加VD3可不同程度地提高种鸡胫骨折断力(P>0.05);添加VD3可提高种鸡血浆中钙、磷含量,降低AKP活性(P<0.05)。(2)种鸡饲粮添加VD3对子代肉鸡生长性能指标无显著影响(P>0.05);但与对照组相比,添加4 000 IU·kg-1 VD3显著提高子代鸡胫骨折断力(P<0.05),添加800、1 600或4 000 IU·kg-1VD3显著增加子代肉鸡胫骨密度(P<0.05),添加1 600—4 000 IU·kg-1VD3可不同程度地提高子代鸡脱脂胫骨比例(P>0.05);添加VD3提高了子代肉鸡1日龄血浆中钙、磷含量,降低AKP活性(P<0.05),但对21、63日龄子代肉鸡无显著影响(P>0.05)。【结论】饲粮中添加VD3显著影响黄羽肉种鸡产蛋性能、种蛋蛋壳品质、肉种鸡及其子代肉鸡胫骨指标与钙磷代谢。综合试验观测与回归模型来估测黄羽肉种鸡VD3需要量,饲粮添加800 IU·kg-1 VD3即可获得最优产蛋性能,1 650—1 828 IU·kg-1 VD3获得最优蛋品质,而获得种鸡和子代肉鸡最优胫骨性状均需要较高的种鸡饲粮VD3水平(4 000 IU·kg-1)。

关键词: 维生素D3, 黄羽肉种鸡, 需要量, 子代肉鸡, 产蛋性能, 胫骨

Abstract:

【Objective】This experiment was conducted to investigate the effects of vitamin D3 (VD3) supplementation on performance, tibial characteristics and metabolism of calcium and phosphorus of fast-growing yellow-feathered breeder hens and the progeny, so as to establish requirement of vitamin D3 on breeder hens.【Method】Seven hundred and twenty breeder hens at 48 weeks of age were fed up with basal diets supplemented with 0, 800, 1 600, 2 400, 3 200 and 4 000 IU·kg-1 VD3 for eight weeks with six replicates per group and 20 hens per replicate, then the progeny hatched from each of the 6 maternal groups were fed a basal diet supplemented with 1 000 IU·kg-1 VD3 for 63 days. 【Result】Compared with the control group, supplemental 800 IU·kg-1 VD3 enhanced average egg weight (P<0.05); the dietary supplementation with 1 600 and 3 200 IU·kg-1 VD3 increased (P<0.05) egg shell strength and 1 600 IU·kg-1 VD3 increased (P<0.05) egg shell thickness; 4 000 IU·kg-1 VD3 supplementation increased dehydrated and degreased tibial weight/BW and bone density of yellow-feathered breeder hens (P<0.05); 4 000 IU·kg-1 VD3 supplementation also increased content of calcium and phosphorus, and decreased activity of AKP activity in plasma (P<0.05); supplementation of VD3 increased broking strength of tibia of breeder hens (P>0.05). There was no significant effect of maternal VD3 on growth performance of the progeny (P>0.05), However compared with the control group, the broking strength of tibia in the progeny was increased (P<0.05) when 4 000 IU·kg-1 VD3 was added to maternal diet, and tibial density was increased when 800, 1 600, or 4 000 IU·kg-1 VD3 was added; supplementation of 1 600 to 4 000 IU·kg-1VD3 increased dehydrated and degreased tibial weight/BW of the progeny (P>0.05). Addition of VD3 significantly increased content of calcium and phosphorus, and decreased activity of AKP in plasma of hens and their progeny aged 1 day (P<0.05), however, it had no significant effect on those of progeny at 21 or 63 days of age (P>0.05).【Conclusion】Under the condition of this experiment, the dietary supplementation of VD3 improved productive performance of yellow-feathered breeder hens, tibial characteristics and metabolism of calcium and phosphorus of breeder hens and progeny. The VD3 requirement of yellow-feathered breeders was estimated by considering the experimental data and quadratic regressions comprehensively. For yellow-feathered breeder hens, the best productive performance was obtained when supplemented with 800 IU·kg-1 VD3, and the best egg quality was obtained when supplemented with 1 650 to 1 828 IU·kg-1 VD3. The best tibial characteristics of the hens and progeny were obtained when supplemented with high level of VD3 (4 000 IU·kg-1).

Key words: vitamin D3, yellow-feathered breeder hens, requirement, progeny, laying performance, tibia