Genetic analysis for semen quality traits in buffalo bulls

Kumar, Devender; Mehta, J. S.; Jerome, A.; Kumar, Pradeep; Kumar, D.; Shivani, B; Patil, C. S.; Bala, Renu; Verma, Nisha; Nain, Satish; Sharma, R. K.; Singh, Pawan

doi:10.1007/s11250-023-03756-4

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Additionally, Rushdi et al (2017) [26] reported values of 66.20%, 70.58%, and 15.15% for MM, LS, and AS, respectively. In the Indian Murrah buffalo bulls, Kumar et al (2023) [27] observed that the actual means of ejaculate volume and sperm concentration were 2.82 mL and 1040.12 million/mL, respectively. Variations in the mean values for semen traits observed in this study and those reported by different researchers working on different breeds of dairy or buffalo bulls may be explained by differences in genetic makeup, reproductive and health status of bulls, age of bulls, frequency of collection, teamwork in collection, nutrition, season and year of collection, and management [21].…”

Section: Discussionmentioning

confidence: 99%

A Single-Step Genome-Wide Association Study for Semen Traits of Egyptian Buffalo Bulls

EL Nagar,

Salem,

Amin

et al. 2023

Animals

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The present study aimed to contribute to the limited research on buffalo (Bubalus bubalis) semen traits by incorporating genomic data. A total of 8465 ejaculates were collected. The genotyping procedure was conducted using the Axiom® Buffalo Genotyping 90 K array designed by the Affymetrix Expert Design Program. After conducting a quality assessment, we utilized 67,282 SNPs genotyped in 192 animals. We identified several genomic loci explaining high genetic variance by employing single-step genomic evaluation. The aforementioned regions were located on buffalo chromosomes no. 3, 4, 6, 7, 14, 16, 20, 22, and the X-chromosome. The X-chromosome exhibited substantial influence, accounting for 4.18, 4.59, 5.16, 5.19, and 4.31% of the genomic variance for ejaculate volume, mass motility, livability, abnormality, and concentration, respectively. In the examined genomic regions, we identified five novel candidate genes linked to male fertility and spermatogenesis, four in the X-chromosome and one in chromosome no. 16. Additional extensive research with larger sample sizes and datasets is imperative to validate these findings and evaluate their applicability for genomic selection.

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Section: Discussionmentioning

confidence: 99%

A Single-Step Genome-Wide Association Study for Semen Traits of Egyptian Buffalo Bulls

EL Nagar,

Salem,

Amin

et al. 2023

Animals

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Genetic evaluation for milk and semen variables on Egyptian buffaloes

Fouad El Basuini,

Aziz El Hais,

Abdel Moneim Mourad

et al. 2024

Buffalo Bull.

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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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Genetic analysis for semen quality traits in buffalo bulls

Cited by 2 publications

References 13 publications

A Single-Step Genome-Wide Association Study for Semen Traits of Egyptian Buffalo Bulls

A Single-Step Genome-Wide Association Study for Semen Traits of Egyptian Buffalo Bulls

Genetic evaluation for milk and semen variables on Egyptian buffaloes

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