Ibrahim Samer, Al-Sharif Mona, Younis Fawzy, Ateya Ahmed, Abdo Mohamed, Fericean Liana
Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt.
Department of Biology, College of Science, University of Jeddah, Jeddah 23218, Saudi Arabia.
Animals (Basel). 2023 Jan 19;13(3):353. doi: 10.3390/ani13030353.
This study explored the potential genes and economic factors that might be associated with growth and heat tolerance in two sheep breeds. Data on growth performance from the third month to six months of age were obtained based on records. In comparison to Aboudeleik lambs, Barki lambs developed considerably greater starting body weight, final body weight, final body weight gain, daily weight gain, and percentage increase in BW/month. Single nucleotide polymorphisms (SNPs) were found between lambs of the two breeds using PCR-DNA sequencing of , , , , , , , , , , and genes. Lambs from each breed were divided into groups based on detected SNPs in genes related to growth. The least squares means of the differentiated groups revealed a significant correlation of detected SNPs with growth and heat tolerance attributes ( ≤ 0.05). Barki lambs elicited greater total variable costs, total costs, total return, and net return values. The Barki sheep provided the best economic efficiency value when comparing the percentage difference between net profit and economic efficiency. Together with economic considerations, SNPs found may be used as proxies for marker-assisted selection of the best breed of sheep for traits related to growth and heat tolerance.
本研究探讨了可能与两个绵羊品种生长和耐热性相关的潜在基因和经济因素。基于记录获取了3月龄至6月龄的生长性能数据。与阿布德莱克羔羊相比，巴尔基羔羊的起始体重、终末体重、终末体重增加量、日增重以及每月体重增加百分比均显著更高。通过对 、 、 、 、 、 、 、 、 、 和 基因进行PCR-DNA测序，在两个品种的羔羊之间发现了单核苷酸多态性（SNP）。根据与生长相关基因中检测到的SNP，将每个品种的羔羊分为不同组。差异组的最小二乘均值显示，检测到的SNP与生长和耐热性属性之间存在显著相关性（ ≤ 0.05）。巴尔基羔羊产生的总可变成本、总成本、总回报和净回报值更高。在比较净利润与经济效率的百分比差异时，巴尔基羊的经济效率值最佳。综合经济因素考虑，发现的SNP可作为标记辅助选择与生长和耐热性相关优良绵羊品种的指标。
