在涉及埃及子系的杂交实验中,对子特征的异性效应
Abdelwahab H Khattab1,2, Mahmoud M Iraqi1, Maher H Khalil3
1Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, Tukh, 13736, Egypt.
Tropical animal health and production
|March 6, 2025
概括
使用APRI和Moshtohor线的杂交子增强了 litter 的特征. 作为水的Moshtohor线和作为的APRI线是建议在埃及改善子生产的.
科学领域:
- 动物科学动物科学
- 遗传学 是一个遗传学.
- 生殖生物学 生殖生物学
背景情况:
- 养对肉类生产至关重要,需要对子特征进行基因改进.
- 交叉繁殖策略被用来利用异构并结合理想的遗传特征.
- 评估像APRI和Moshtohor这样的合成子系是优化繁殖计划的关键.
研究的目的:
- 评估APRI (A) 和Moshtohor (M) 子线之间的杂交对子表现的影响.
- 为了估计遗传性,繁殖值,关键子特征的直接,母性和异性效应.
- 为在埃及子生产中提供最佳杂交策略的建议.
主要方法:
- 这是一项为期四年的杂交实验,涉及APRI和Moshtohor合成子系.
- 分析出生时 (LSB) 和断奶时 (LSW) 的 litter size,出生时 (LWB) 和断奶时 (LWW) 的 litter weight以及断奶前死亡率 (PM).
- 遗传性的估计,预测的繁殖值 (PBVs),直接添加剂 (GI),母性影响 (GM),直接异位症 (HI) 和母性异位症 (HM).
主要成果:
- 子特征的遗传概率估计为低至中度 (0.110.27).
- 对于大多数子特征,观察到显著的阳性直接和母性异位症.
- 莫什托霍尔线显示出有利的直接和母性影响;APRI线具有最低的PBV范围.
结论:
- 杂交显著改善了子的子特征,具有显著的异性效应.
- 建议使用APRI线作为sires和Moshtohor线作为大来合成新线.
- 这一战略有望提高埃及的子生产效率.
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