›› 2019, Vol. 46 ›› Issue (2): 404-413.doi: 10.16431/j.cnki.1671-7236.2019.02.010

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

The Determination of Growth Performance,Wool Quality and Blood Physiological and Biochemical Indexes of SDH Hybrid Sheep

SHI Huibin1, WANG Yuqin1,2, HE Wengtan1, WU Zhibo1, TIAN Zhilong1, YU Zuhua1, DING Ke1,2, ZHAO Zhanqin1,2   

  1. 1. Institute of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, China;
    2. Henan Province Meat Sheep Breeding Engineering Technology Research Center, Luoyang 471003, China
  • Received:2018-08-21 Online:2019-02-20 Published:2019-02-20

Abstract:

In order to study the growth and development of Suffolk×Dorper×Hu sheep (SDH) hybrid sheep and its adaptability to the local ecological environment,the body weight and body size indexes of sheep at different ages were measured by conventional measurement of production performance,microscopic measurement and automatic analysis of blood physiology and biochemistry analyzer.Wool quality (including net wool percentage,wool fineness,ratio of medullated and non-medullated wool,natural length and straight length of different parts,etc.) and physiological and biochemical indexes of adult sheep blood were measured.The results showed that the early growth rate of SDH hybrid sheep was fast,and the body length of rams was significant higher than that of ewes in primary stage and one year old (P<0.05).At three months of age,there was a significant difference in body height,body length and chest circumference between rams and ewes (P<0.05),and rams were higher than ewes.At the age of six months,the body weight of ewes was extremely significant higher than that of rams (P<0.01).The body weight and body height of rams were significantly higher than that of ewes in adulthood (P<0.05).There was no significant difference in body weight and body size between rams and ewes during the other growth stages (P>0.05).The average net wool rate,average natural length,straight length,fineness of the hybrid wool was 45.21%,4.55 cm,6.22 cm and 17.60 μm,respectively.There were some differences between blood physiological and biochemical indicators of male and female sheep and the reference value of domestic sheep.The difference in PLT and PCT of ewes were extremely significant higher than rams (P<0.01).There was a significant difference in the contents of triglyceride and albumin (P<0.05),and the ram was higher than the ewes.There was no significant difference between the other indicators (P>0.05).In conclusion,the SDH sheep had improved in various aspects in terms of growth and development,and the results could provide a reference for the further development and utilization of the sheep.

Key words: SDH hybrid sheep; body weight; body size indexes; wool quality; blood physiology and biochemistry

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