20~35 kg体重阶段杜泊×小尾寒羊F1代公羔体内钙、磷、钠、钾、镁含量及分布特点

doi:10.11843/j.issn.0366-6964.2013.12.013

畜牧兽医学报 ›› 2013, Vol. 44 ›› Issue (12): 1946-1953.doi: 10.11843/j.issn.0366-6964.2013.12.013

20~35 kg体重阶段杜泊×小尾寒羊F₁代公羔体内钙、磷、钠、钾、镁含量及分布特点

纪守坤¹，许贵善²，姜成钢¹，邓凯东³，楼灿¹，屠焰¹，张乃锋¹，聂明非¹，刁其玉^1*

（1.中国农业科学院饲料研究所，农业部饲料生物技术重点实验室，北京 100081；2.塔里木大学动物科学学院，阿拉尔 843300； 3.南京金陵学院动物科技学院，南京 210038）

收稿日期:2013-03-13 出版日期:2013-12-23 发布日期:2013-12-23
通讯作者: 刁其玉，研究员，博士生导师，E-mail：diaoqiyu@caas.cn
作者简介:纪守坤（1986-），男，山东曹县人，硕士生，主要从事反刍动物生理营养研究，E-mail：jishoukun@163.com
基金资助:
国家现代农业肉羊产业技术体系专项资金资助(CARS-39)

Changes of Major Mineral Contents and Distributions in Dorper×Small Tail Han F₁ Lambs During 20-35 kg Period

JI Shou-kun¹, XU Gui-shan², JIANG Cheng-gang¹, DENG Kai-dong³, LOU Can¹ , TU Yan¹, ZHANG Nai-feng¹, NIE Ming-fei¹, DIAO Qi-yu^1*

(1.Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2.College of Animal Science, Tarim University, Alar 843300, China; 3.College of Animal Science and Technology, Nanjing Jinling University, Nanjing 210038, China)

Received:2013-03-13 Online:2013-12-23 Published:2013-12-23

摘要/Abstract

摘要：

本试验旨在研究20~35 kg杜泊×小尾寒羊F₁代公羔羊在自由采食条件下不同体重阶段体组织中钙（Ca）、磷（P）、钠（Na）、钾（K）、镁（Mg）的含量变化及分布规律。选取杜泊×小尾寒羊（杜寒）F₁代公羔羊21只，随机分为3组，各组自由采食同种颗粒饲料，分别于体重20、28、35 kg时屠宰并分离骨骼、肌肉、羊皮、内脏（含血）、脂肪和羊毛组织，分析各部分矿物质含量。结果表明，随屠宰活重（SBW）的增加羔羊胴体重、肌肉重、羊皮重、内脏重和羊毛重均显著增加（P＜0.05），生长速度较稳定；20 kg组骨骼重量显著低于28和35 kg组（P＜0.05），生长前期快后期慢；35 kg组脂肪重显著高于28和20 kg组（P＜0.05），生长模式为前期慢后期快。在各屠宰组中，35 kg组骨骼中钙、磷、镁含量均显著高于20和28 kg组（P＜0.05）；在肌肉中，20 kg组磷、钠、钾、镁含量均显著高于35 kg组（P＜0.05）；在羊皮与内脏中，随屠宰体重增加，矿物质含量不同程度增加。另外，骨骼中含有体内总含量约98.5%的钙，82.3%的磷，41.5%的钠和69.8%的镁，而肌肉中含有体内总量50.1%的钾。结果显示，钙、磷、钠、钾和镁元素在羔羊体内的含量随体重的变化差异显著，不同元素在不同组织器官中的含量差异显著。随羔羊体重增加肌肉中各矿物质含量降低，而骨骼、羊皮、内脏中矿物质含量存在不同程度增加。骨骼是钙、磷、钠和镁的主要分布器官，钾主要分布在肌肉中。

Abstract:

This experiment was conducted to investigate changes of the major mineral contents and distributions in Dorper×Small Tail Han sheep crossbred F₁ male lambs from 20 to 35 kg live weight under ad libitum feeding. Twenty one lambs were randomly assigned to three groups with 7 sheep each and fed with the same diet, the three groups were slaughtered at their average body weight of 20, 28 and 35 kg, respectively, and mineral contents in different tissues were measured. The results showed that the carcass, muscle, leather, viscera and wool weight increased significantly with the slaughter body weight(SBW) gain(P＜0.05). The bone weight of 20 kg group was significantly lower than that of 28 and 35 kg groups but significant difference was not observed between 28 and 35 kg groups，the fat growth was on the contrary with that of bone, the fat weight of 35 kg group was higher than that of 28 and 20 kg groups(P＜0.05); the calcium, phosphorus and magnesium contents in bone of 35 kg group was significantly higher than that of the other two groups, however, the phosphorus, sodium, potassium and magnesium contents in muscle of 20 kg group were the highest in the three groups. Minerals in leather and viscera also increased inordinately with the SBW gain. The result also indicated that bone was the main storage tissue for calcium, phosphorus, sodium and magnesium, accounting for 98.5%, 82.3%, 41.5% and 69.8% of the total contents in body, while potassium was mainly stored in muscle, accounting for 50.1% of the total in body. The results indicate that in the stage of 20~35 kg of lambs, the tissue of bone grow fast before 28 kg but slow down lately, on the contrary, the tissue of fat grow in a low rate before 28 kg but speed up after that, the growth rate of muscle, leather and viscera are nearly maintaining at the same stage. The research also shows that minerals content in muscle goes down with the body weight increase, but it presents the opposite trends in other tissues (bone, viscera, leather, fat and wool).

中图分类号:

S826
S815.4

纪守坤，许贵善，姜成钢，邓凯东，楼灿，屠焰，张乃锋，聂明非，刁其玉. 20~35 kg体重阶段杜泊×小尾寒羊F₁代公羔体内钙、磷、钠、钾、镁含量及分布特点[J]. 畜牧兽医学报, 2013, 44(12): 1946-1953.

JI Shou-kun, XU Gui-shan, JIANG Cheng-gang, DENG Kai-dong, LOU Can,TU Yan, ZHANG Nai-feng, NIE Ming-fei, DIAO Qi-yu. Changes of Major Mineral Contents and Distributions in Dorper×Small Tail Han F₁ Lambs During 20-35 kg Period[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2013, 44(12): 1946-1953.

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20~35 kg体重阶段杜泊×小尾寒羊F₁代公羔体内钙、磷、钠、钾、镁含量及分布特点

Changes of Major Mineral Contents and Distributions in Dorper×Small Tail Han F₁ Lambs During 20-35 kg Period

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