Genetic evaluation for milk and semen variables on Egyptian buffaloes

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Buffalo Bulletin Pub Date : 2024-04-01 DOI:10.56825/bufbu.2024.4313000

Mohamed Fouad El Basuini, Abdel Aziz El Hais, Kawther Abdel Moneim Mourad, Set El Habaib Shalay Awas, Adel Salah Khattab

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引用次数: 0

Abstract

2584 lactation records of Egyptian buffaloes calving between1992 to 2010 kept at Natafe El Gadded farm were studied. Several variables Animal model (SVAM) was used. Milk variables are milk production (MP), days in milk (DM), and calving interval (CI) and semen quality are ejaculate volume (EV) life of sperm (LS) and total Motility (TM). The overall means of MP, LL, CI, EV, LS, and TM were 2025 kg, 203 d, 447 d, 3.25 ml, 65.91% and 58.40%, respectively. Heritabilities were 0.23, 0.13, 0.02, 0.08, 0.27 and 0.24, for milk production, lactation length, current calving interval, ejaculate volume, live of sperm and total motility, respectively. Genetic association among MP and each of DM and CI were positive and were 0.80, 0.04, respectively, while among DM and CI was negative (-0.54). Genetic association among EV and each of LS and TM were .04 and -0.03, respectively, while among LS and TM was (1.0). In conclusion, our findings provide useful information on the heritability of milk production, life of sperm and mass motility traits in Egyptian buffaloes and relationships among them and should assist in selection for improvement of milk yield and semen traits in Egyptian buffaloes and bulls.

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埃及水牛牛奶和精液变量的遗传评估

对 Natafe El Gadded 农场饲养的 1992 年至 2010 年间产犊的 2584 头埃及水牛的泌乳记录进行了研究。使用了多变量动物模型（SVAM）。牛奶变量包括产奶量（MP）、产奶天数（DM）和产犊间隔（CI），精液质量变量包括射精量（EV）、精子寿命（LS）和总活力（TM）。MP、LL、CI、EV、LS和TM的总平均值分别为2025 kg、203 d、447 d、3.25 ml、65.91%和58.40%。产奶量、泌乳期、当前产犊间隔、射精量、精子活率和总活力的遗传力分别为 0.23、0.13、0.02、0.08、0.27 和 0.24。MP与DM和CI的遗传关联为正，分别为0.80和0.04，而DM与CI的遗传关联为负（-0.54）。EV与LS和TM的遗传关联分别为0.04和-0.03，而LS与TM的遗传关联为（1.0）。总之，我们的研究结果为埃及水牛产奶量、精子寿命和质量活力性状的遗传率以及它们之间的关系提供了有用的信息，应有助于埃及水牛和公牛提高产奶量和精液性状的选育。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Buffalo Bulletin AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Buffalo Bulletin is published quarterly in January-March, April-June, July-September and October-December. Contributions on any aspect of research or development, progress reports of projects and news on buffalo will be considered for publication in the bulletin.