tailieunhanh - Effect of age on semen characteristics of hallikar bulls

The present study was undertaken with the objective to analyze the effect of age on various semen characteristics based on 11,008 ejaculates from 25 Hallikar bulls over a period of 15 years (January 1999 to December 2013). The data on semen collection from individual bulls were sub-clustered under four age groups namely 2-3 years, 3-5 years, 5-7 years and above 7 years. The study concludes that the semen production in Hallikar bulls is influenced by the factor age and has revealed a significant. | 2020 9 1 1078-1085 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 9 Number 1 2020 Journal homepage http Original Research Article https Effect of Age on Semen Characteristics of Hallikar Bulls R. Prem Kumar1 R. Sunitha2 and T. G. Honnappa3 1V herniary Dispensary Madanahalli Kolar Karnataka India 2Department of Veterinary Public Health and Epidemiology Veterinary College Gadag India 3Department of Veterinary Gynecology and Obstetrics Veterinary College Banglore India Corresponding author ABSTRACT Keywords Semen characteristics Age Spermiogram Initial motility Hallikar Bulls Article Info Accepted 15December 2019 Available Online 20 January 2020 The present study was undertaken with the objective to analyze the effect of age on various semen characteristics based on 11 008 ejaculates from 25 Hallikar bulls over a period of 15 years January 1999 to December 2013 . The data on semen collection from individual bulls were sub-clustered under four age groups namely 2-3 years 3-5 years 5-7 years and above 7 years. The study concludes that the semen production in Hallikar bulls is influenced by the factor age and has revealed a significant P effect of age on spermiogram except initial motility . Introduction Hallikar cattle is considered as one of the premier draught breed of India popularly known as the champion of draught breeds and it is the pride cattle breed of Karnataka having a history of 600 years Shekar et al. 2011 . They are fast track animals used extensively for dry land agricultural operations and for transportation in rural areas. This breed is considered as the progenitor of the Amrithmahal Khillar and Kangayam breeds Kumar et al. 2006 . In the recent times there is deterioration in the form size quality growth reproduction and production potentialities of Hallikar cattle breed due to changes in the utility and .

• Nông nghiệp
• Semen characteristics
• Initial motility
• Hallikar bulls
• Semen production in Hallikar bulls
• Various semen characteristics based
• Fresh semen characteristics
• Large white yorkshire boar semen selected
• Liquid semen preservation
• Progressive motility
• Acrosome integrity
• Semen Quality
• Laboratory Analyses
• Feed Supplement
• Semen Cryopreservation
• Bull Semen Frozen
• Artificial Insemination
• Gir breeding bulls
• Gir bull semen during summer
• Physio morphological characteristics
• Correlative studies
• Swamp buffalo (Bubalus carabanesis) semen
• Biochemical characterization
• Swamp buffalo
• Biochemical characteristics
• Stallion semen
• Freezability in Marwari stallions
• Feeding azolla on sexual behaviour
• Seminal characteristics
• German shepherd dogs
• Enzyme activity
• Membrane integrity
• Scrotal abnormality was noticed
• NARI Suwarna
• Seasonal variation
• NARI suwarna rams
• Breeding and non breeding