Studying the relationship between a number of carcass traits and their regression on live weight in sheep

  • Abdullah Hameed Salim
  • Haneen Sattar Abbas


This study was conducted in Suq Al-Shuyoukh district, south of Thi Qar province, for the period from 5/11/2021 to 8/5/2022 on a sheep sample consisting of 49 local Iraqi sheep (Arabi ) from one of the private sector herds.The study included slaughtering sheep in a butcher's shop, recording the traits of the carcass and the weight of the thigh inside the shop, and then taking a sample of the thigh meat to study some of its chemical traits .Chemical tests were conducted on the meat sample in the laboratories of the Faculty of Agriculture and the Marshes of the University of Thi Qar, and the genetic material was extracted and genetic analysis was done in the laboratory of the Marsh Research Center at the University of Thi Qar. We reached the following results: The traits of hot carcass weight, carcass length, carcass diameter, and thigh weight showed a highly significant and positive correlation among them, while the rest of the traits differed in their correlations in terms of morality or in terms of being negative or positive. Through the results of the statistical analysis, it was found that the value of the regression coefficient for the characteristics of hot carcass weight, carcass length, thigh weight, dressing percentage, pH of meat, and muscle fiber diameter on the live weight of the animal was positive (except for the dressing percentage) and highly significant (P≤0.01).


1. Ishaq, Muhammad Ali and Ajil, Hammoud Mazhar. 2013. Reproductive traits of local and Turkish Awassi sheep under semi-intensive breeding conditions. Iraqi Journal of Agricultural Sciences, (44) 5: 615-632.
2. Al-Hilali, Ali Hussein. 1982. Genetic analysis of some productive traits after weaning in sheep Awassi. Master's thesis - College of Agriculture - University of Baghdad.
3. Galal, Salah and Hassan Karam. 1984. Animal husbandry. Fifth Edition, Dar Al Maaref, Cairo.
4. Al-Jawasra, Khalil Ibrahim and Al-Anbari, Nasr Nouri. 2007. Modern technologies in breeding Sheep, National Center for Agricultural Research and Technology Transfer, Jordan.
5. Ministry of Agriculture, Department of Planning and Follow-up, Statistics Department. 2012. Report of the national survey of livestock in Iraq.
6. FAO (Food and Agriculture Organization) of the United Nations.(2019).
7. Gao, Y., Zhang, R., Hu, X. and Li, N. 2007. Application of genomic technologies to the improvement of meat quality of farm animals . Meat Science, 77: 36-45.
8. Jaayid, T. A., Yousief, M.Y., Muhssen, E. M. and Saker, D. K. (2013). Analysis of DNA Polymorphisms in Arabic camel (Camelusdromedarius) using Random Amplified Polymorphic DNA polymerase chain reaction technique. Basrah J. Agric. Sci., 26(1): 14–22.
9. Khan, B.U. and Bhat ,P.N.1980.Genetic studies of carcass traits in Muzaffarnagari sheep and its half breds with Correedale .Indian J .Anim.Sci.50:843-851.
10. Pareek, C. S., Smoczynski, R. and Andrzej, T. (2011). Sequencing technologies and genome sequencing. Journal of Applied Genetics, 52(4): 413–435.
11. Salman, M. and Abdallah, J. (2014). Evaluation of performance and estimation of genetic parameters for milk yield and some reproductive traits in sheep breeds and crosses in the West Bank. Tropentag, Prague, Czech. Republic, 4(1): 1–4.