ArticleTropical animal health and production2024
Principal component analysis of phenotypic and breeding value data for semen traits in Egyptian buffalo bulls.
Article in Tropical animal health and production, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Sero-epidemiological survey of Toxoplasma gondii in water buffalo (Bubalus bubalis) and domestic pig (Sus scrofa domesticus) across upper and lower Egypt.BMC veterinary research · 2026Article
- Non-genetic determinants and interaction effects on semen quality and production efficiency in Mehsana buffalo bulls: a large-scale field study.Tropical animal health and production · 2026Article
- Quantitative Postnatal Maturation of the Feline Testis from 6 to 36 Months: A Stereological and DHH Immunomorphological Analysis.Animals : an open access journal from MDPI · 2025Article
- Genetic analyses and molecular associations of FSHR and GH genes for semen traits in Egyptian buffalo.BMC veterinary research · 2025Article
- Factor Analysis of Semen Quality in Chicken and Its Impact on Fertility.Animals : an open access journal from MDPI · 2025Article
- The Role of Aquaculture in Shaping the Morphology ofBiology · 2025Article
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Authors and funding
4 authors.
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Abstract
Buffalo bull semen traits are economically important traits that influence farm fertility and profitability. Genetic improvement of semen characteristics is an important detail of the genetic improvement. This study was conducted to assess the relationship between the breeding values as well as the phenotypic values for semen traits (VOL, MM, LS, AS and CONC) of the Egyptian buffalo bulls. A total of 7761 normal semen ejaculates were collected and characterized at ILMTC laboratory from 26 bulls from 2009 to 2019. For VOL, MM, LS, AS, and CONC, the actual means were 3.89 mL, 62.37%, 60.64%, 3.94%, and 0.67 × 109 sperm/mL, respectively. The prediction of breeding values for semen traits was estimated using a Bayesian procedure. The estimated standardized EBVs and phenotypic values were used in the principal component analysis (PCA). Of five PCs, one PC (PC1) had > 1 eigenvalues that was responsible for 87.19% of the total variation of SEBV, and two PCs had > 1 eigenvalues that were responsible for 59.61% and 21.35% of the total variation of the phenotypic values. Together, PC1 and PC2 accounted for 97.97% of the total variance of SEBV and 80.96% of the total variance of phenotypic values. A graphs of the first two components showed the traits separated into two different directions by group. This indicates each group was under similar genetic influence. Therefore, selection can be done separately for each group without influencing the other. Principal component analysis reduced variables to describe the key information in buffalo semen data.
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