Comparison of the physical characteristics of semen under different collection frequencies in the native and exotic cocks

Udeh, I.; Ugwu, S.O.C.; Ojeh, AI

doi:10.4314/tjas.v3i2.49789

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“…Fertility (range: 76.67-90.53), hatchability (range: 83.50-91.36), dead in shell (range: 8.23-9.46), and weak in shell (range: 0.32-1.32) did not differ significantly between naked neck, normal feathered, and frizzled ICs and an exotic broiler strain. For semen quality [68] reported higher mean ejaculate volume, sperm concentration, sperm motility, and vigor in local compared to exotic cocks at different collection frequencies and intervals. Omeje and Udeh [69] had shown that feed restriction adversely affected semen production in exotic than local cocks and that only the local cock yielded semen at once in four days feeding.…”

Section: Egg Production Semen Quality Fertility and Hatchability Potentialsmentioning

confidence: 94%

Utilization and Conservation of Landrace Chickens of Nigeria: Physical and Performance Characteristics, Issues and Concerns

Ogbu¹

2021

Landraces - Traditional Variety and Natural Breed

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The Nigerian indigenous chickens (NICs) are a critical component of the global animal genetic resources. They are distributed in rural areas, kept by the majority of the rural poor. They constitute different strains, or ecotypes local to tribes, regions, or ecological zones and are valued for their disease resistance, adaptation, and yield of valuable products and income on marginal inputs making them a low risk species. They are hence a unique and vital genetic resource and gene pool for present and long-term genetic improvement and human need for food and sustenance. The NIC is however; threatened by extinction owing to neglect, negative selection, breed substitution, and genetic introgression. There is need to draw research and policy attention to the conservation of NICs in accord with the global effort for the conservation of indigenous chickens which is probably the most neglected among farm animal species. The present review therefore, focuses on the physical and performance characteristics, genetic diversity and improvement, utilization and conservation of NIC genetic resources.

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Section: Egg Production Semen Quality Fertility and Hatchability Potentialsmentioning

confidence: 94%

Utilization and Conservation of Landrace Chickens of Nigeria: Physical and Performance Characteristics, Issues and Concerns

Ogbu¹

2021

Landraces - Traditional Variety and Natural Breed

View full text Add to dashboard Cite

show abstract

Comparison of the physical characteristics of semen under different collection frequencies in the native and exotic cocks

Cited by 1 publication

References 0 publications

Utilization and Conservation of Landrace Chickens of Nigeria: Physical and Performance Characteristics, Issues and Concerns

Utilization and Conservation of Landrace Chickens of Nigeria: Physical and Performance Characteristics, Issues and Concerns

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