ArticleOpen veterinary journal2025
Molecular detection of transferrin genetic formation as a marker for weight and growth hormones in male Arabi sheep.
Article in Open veterinary journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Blood proteins have been widely used to characterize animal breeds, as most are genetically determined and follow simple genetic rules. Therefore, the transferrin protein has been studied based on its various alleles. Transferrin is a type of protein that binds two iron atoms to each transferrin molecule. Sheep meat production can be increased through genetic improvement. Aim: The aim of the study is to predict the live weight and growth hormone (GH) concentration of lambs by identifying transferrin gene alleles and selecting them for meat production or breeding. Methods: This study was conducted at the Research Station of the College of Agriculture, University of Basrah. Blood samples were taken from 74 Arabi sheep, and the genetic makeup of the iron transporter protein (transferrin) was studied using polyacrylamide gel electrophoresis in a variable buffer solution with black amido dye. The relationship between gene expression, lamb live weight, and GH concentration was investigated. Results: indicated the detection of six transferrin genotypes AA, AB, AC, BB, BC, and C were detected based on their electrophoretic mobility in basal medium. Three alleles, A, B, and C, accounted for these genotypes. The results showed that the AA and BB genotypes were associated with lamb live weight and GH concentration, accounting for 48.61% and 16.66 % of the genotypes, respectively. The average lamb weights were 38.15 and 37.22 kg, and the GH concentrations were 9.97 and 9.51 ng/ml, respectively. In contrast, the genotypes AB and AC accounted for 20.83% and 11.11%, respectively, with an average weight of 36.20 and 36.05 kg, and a GH concentration of 8.97 and 8.85 ng/ml, respectively. As for the genotypes AC, BC their percentage reached 1.33%, with an average weight of 35.65 and 35.35 kg, respectively, and a GH concentration of 8.75 and 8.45 ng/ml, respectively, as these traits are recessive. Conclusion: From the results, we conclude that there is a correlation between body weight, GH concentration in lambs, and the genotype AA and BB, indicating that it is the dominant trait over the other genotypes.
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