Analysis of the Association Between Microsatellite Loci Polymorphisms and Longevity and Lifetime Milk Production Traits in Egyptian Buffalo | ||||
| Egyptian Journal of Veterinary Sciences | ||||
| Articles in Press, Corrected Proof, Available Online from 06 May 2025 PDF (644.02 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejvs.2025.363238.2660 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Mohamed Attia Ahmed Awad  
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| Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt | ||||
| Abstract | ||||
| The objectives of this study were to assess the genetic polymorphisms of 14 microsatellite loci and to test their potential relationship with the longevity and lifetime milk production traits in the Egyptian buffalo. A total of 50 Egyptian buffalo with phenotypic data regarding four longevity and six lifetime milk production traits were genotyped. The longevity traits included herd life, productive life, buffalo efficiency index, and number of lactations, whereas, the lifetime milk production traits were milking life, lifetime milk yield, lifetime daily milk yield, milk yield per day of herd life, milk yield per day of productive life, and longevity index. All the microsatellite loci showed polymorphic status with a total of 52 alleles and 44 various genotypes. The investigated polymorphic loci were significantly associated with all studied traits except the locus BM143 which was particularly correlated with only two lifetime milk production traits. Specifically, the genotypes; AB (73/79 bp), AC (213/227 bp), BD (236/250 bp), AD (171/185 bp), AD (104/114 bp), AB (92/98 bp), AC (115/129 bp), and AC (104/116 bp) for the loci BMS2460, ETH02, ILSTS97, CSSM38, AFR227, BM1236, BMS483, and RM28, respectively were the most promising genotypes that demonstrated significant linkage with higher potential of the studied traits. The identified associated alleles and genotypes of the studied microsatellite loci could be used in marker-assisted selection for genetic improvement for longevity and lifetime milk production traits in the Egyptian buffalo. | ||||
| Keywords | ||||
| Egyptian buffalo; Lifetime traits; Longevity; Microsatellite markers | ||||
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