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Assessing the performance of Moghani crossbred lambs derived from different mating systems with Texel and Booroola sheep: Assessing the performance of Moghani crossbred lambs

PloS one, 2024-04, Vol.19 (4) [Peer Reviewed Journal]

Attribution ;ISSN: 1932-6203 ;EISSN: 1932-6203 ;DOI: 10.1371/journal.pone.0301629 ;PMID: 38573987

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  • Title:
    Assessing the performance of Moghani crossbred lambs derived from different mating systems with Texel and Booroola sheep: Assessing the performance of Moghani crossbred lambs
  • Author: Talebi, Reza ; Mardi, Mohsen ; Zeinalabedini, Mehrshad ; Kazemi Alamouti, Mehrbano ; Fabre, Stéphane ; Ghaffari, Mohammad Reza
  • Subjects: Life Sciences
  • Is Part Of: PloS one, 2024-04, Vol.19 (4)
  • Description: In our ongoing project, which focuses on the introgression of Booroola / FecB gene and the myostatin ( MSTN ) gene into purebred Moghani sheep, we assessed the performance of second-generation Moghani crossbreds such as second crossbreds (F2) and initial backcross generation (BC1). These crossbreds were generated through different mating systems, including in-breeding, outcrossing, first paternal backcrossing (PBC1), and first maternal backcrossing (MBC1). Notably, F2 strains exhibited lean tail, woolly fleece and a higher percentage of white coat color compared to BC1. The impact of mating systems and birth types on pre-weaning survival rates was found to be statistically significant ( P < 0.0001), with singleton offspring resulting from paternal backcross showing a particularly substantial effect. The F2 crossbred lambs carrying the Booroola gene did not show a statistically significant difference in survivability compared to those carrying the MSTN gene, implying the Booroola prolificacy gene had no significant impact on survival outcomes. However, the occurrence of multiple births had a significant negative impact on lamb survival ( P < 0.0001). The PBC1 sheep strains, specifically Texel Tamlet ram strains carrying the MSTN mutation, exhibited superior growth rates compared to others ( P < 0.05). Interestingly, the MSTN mutation in the homozygous variant genotype significantly impacts growth rate before weaning compared to other genotypes and pure Moghani sheep ( P < 0.05). In conclusion, this study objectively underscores the pivotal role of genetic factors, specifically through strategic mating systems like paternal backcrossing, in enhancing desired traits and growth rates in Moghani sheep, thereby contributing valuable insights to the field of sheep breeding programs.
  • Publisher: Public Library of Science
  • Language: English
  • Identifier: ISSN: 1932-6203
    EISSN: 1932-6203
    DOI: 10.1371/journal.pone.0301629
    PMID: 38573987
  • Source: Hyper Article en Ligne (HAL) (Open Access)
    GFMER Free Medical Journals
    PubMed Central
    Public Library of Science (PLoS)
    ProQuest Central
    DOAJ Directory of Open Access Journals
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