Document Type : (original research)
Authors
1 Department of Animal Science, Agricultural and Natural Resources Research and Education Center of Khorasan Razavi, Agricultural Research, Education and Extension Organization, Mashhad, Iran
2 Deputy Director of Livestock Production Improvement, Jihad-e Agricultural Organization of Khorasan Razavi, Mashhad, Iran
3 Deputy Director of Livestock Product Improvement Agricultural Jihad-e Organization of, North Khorasan, Bojnoord, Iran
4 Department of Animal Science, Faculty of Agriculture, University of Zabol, Zabol, Iran
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