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Multivariate Discriminant Analysis on Differentiating Sheep Breeds Based on Live Body and Carcass Measurements

Multivariate Discriminant Analysis on Differentiating Sheep Breeds Based on Live Body and Carcass Measurements

Raed M. Al-Atiyat1,2*, Gamaleldin M. Suliman3, Khaled Abu-Alruz4, Firas Al-Zyoud5, Amer Mamkagh6, Ahmed M. El-Waziry7, Abdullah N. Al-Owaimer8 and Rifat Ullah Khan9

1Genetics and Biotechnology, Animal Production Department, Agriculture Faculty,
Mutah University, Karak, Jordan
2Biotechnology and Genetic Engineering, Faculty of Science. Philadelphia University, 
Jordan.
3Department of Animal Production, College of Food and Agricultural Sciences, King
Saud University, P.O. Box 2460, 11451 Riyadh, Saudi Arabia
4Department of Nutrition and Food Processing, Agriculture Faculty, Mutah University,
Karak, Jordan.
5Department of Plant Protection and IPM, Faculty of Agriculture, Mutah University,
Karak, 61710 Jordan
6Dept. of Plant Production, Faculty of Agriculture, Mutah University, Karak, 61710,
Jordan
7Department of Animal Production, Alexandaria University, Alexandaria, Egypt
8Department of Animal Production, College of Food and Agricultural Sciences, King
Saud University, P.O. Box 2460, 11451 Riyadh, Saudi Arabia
9College of Veterinary Sciences, Faculty of Animal Husbandry and Veterinary Sciences,
The University of Agriculture, Peshawar, Pakistan
 
*      Corresponding author: ratiyat@mutah.edu.jo

ABSTRACT

The multivariate technique analysis was utilized for assigning and discriminating three Saudi sheep breeds, Naemi, Najdi and Hari based on live body and carcass traits. The traits were body height at wither and rump, body length, heart girth, body depth, head length, ear length, body weight at slaughtering, empty body, dressing percentage, hot carcass, cold carcass, and head weight which had a significant effect on breed. The phenotypic associations between the traits were also studied and strong associations between economically important traits were reported. The analyses of principal components were efficient in showing the total variation of 13 traits accumulated in linear combinations of four traits of most discriminant power body depth, ear length, body height at the rump, and head length. About 77% of the total variation between the breeds. Overall, the analysis of canonical discriminant was very successful in verifying the carcass of each breed considering thus previously mentioned 13 traits. It is recommended to disseminate the findings of this study as a guideline to assign slaughtered sheep and its carcass to its own breed when other means impossible to take place.

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Pakistan Journal of Zoology

February

Pakistan J. Zool., Vol. 56, Iss. 1, pp. 01-501

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