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Comparison of the growth performance between pure Moghani sheep and crosses with Texel or Booroola sheep carrying major genes contributing to muscularity and prolificacy.

Authors
  • Talebi, Reza1, 2
  • Ghaffari, Mohammad Reza1
  • Fabre, Stéphane3
  • Mardi, Mohsen4
  • Kazemi Alamouti, Mehrbano1
  • 1 Department of Systems and Synthetic Biology, Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. , (Iran)
  • 2 Department of Animal Sciences, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran. , (Iran)
  • 3 GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet Tolosan, France. , (France)
  • 4 Seed and Plant Certification and Registration Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. , (Iran)
Type
Published Article
Journal
Animal biotechnology
Publication Date
Dec 01, 2023
Volume
34
Issue
8
Pages
3495–3506
Identifiers
DOI: 10.1080/10495398.2023.2165933
PMID: 36633454
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

This study aimed to compare growth performance between Moghani sheep and crossbred lambs resulting from crossbreeding between Moghani pure breed ewes and the lines of rams e.g., Texel Tamlet, Texel Dalzell, Booroola Merino, and Booroola Romney. The first visible phenotypic characteristic was the presence of lean tail in all F1 crossbred lambs, whereas Moghani pure sheep is a well-known large fat-tailed breed. Moreover, the first generation of backcross (BC1) lambs from mating four types of F1 crossbred rams with Moghani pure ewes revealed lean-tailed to short fat-tailed. Comparative results showed that the F1 crossbred lambs had significantly (p < 0.0001) greater birth weight (BW) than the Moghani pure breed lambs. Despite no significant differences observed between Moghani pure breed sheep and its F1 crossbred lambs for body weight at pre-weaning, but F1 crossbred lambs achieved significantly (p < 0.0001) greater body weight after weaning compared to Moghani sheep. The growth performance of BC1 lambs was outperformed than F1 crossbred and Moghani sheep. These results encourage the continuation of the Moghani sheep crossbreeding programs to improve overall lamb growth, particularly post-weaning and to benefit from a better reproductive efficiency by elimination or reduction of the fat tail.

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