Influence of bull age, ejaculate number, and season of collection on semen production and sperm motility parameters in Holstein Friesian bulls in a commercial artificial insemination centre

Journal of Animal Science
E M MurphyS Fair

Abstract

In the current era of genomic selection, there is an increased demand to collect semen from genomically selected sires at a young age. The objective of this study was to assess the effect of bull age, ejaculate number, and season of collection on semen production (ejaculate volume, sperm concentration, and total sperm number; TSN) and sperm motility (prefreeze and post-thaw total and gross motility) parameters in Holstein Friesian bulls in a commercial artificial insemination (AI) center. The study involved the interrogation of a large dataset collected over a 4-yr period, (n = 8,983 ejaculates; n = 176 Holstein Friesian bulls aged between 9 mo and 8 yr). Bulls aged less than 1 yr had the poorest semen production and sperm motility values for all parameters assessed compared with bulls older than 1 yr (P < 0.01). First ejaculates had greater semen production and greater prefreeze motility values than second consecutive ejaculates (P < 0.01), but despite this, there was no difference in post-thaw motility. When subsequent ejaculates were collected from bulls aged less than 1 yr, semen production and sperm motility did not differ compared with mature bulls. Semen collected in winter was poorest in terms of sperm concentration and...Continue Reading

References

Jul 1, 1982·Journal of Dairy Science·R W Everett, B Bean
Jan 19, 1999·Journal of Dairy Science·M MathevonJ C Dekkers
Jun 14, 2000·Animal Reproduction Science·L JohnsonW L Scrutchfield
May 2, 2003·Journal of Animal Science·H Jiménez-SeverianoJ E Kinder
May 26, 2004·Theriogenology·Shawn R TatmanRonald D Randel
Sep 6, 2005·Theriogenology·Pedro M ApontePedro Bastidas
Oct 7, 2005·Animal Reproduction Science·Birgit Fuerst-WaltlJohann Sölkner
Nov 1, 2005·Animal Reproduction Science·T HauganE Sehested
Dec 14, 2007·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M E Goddard, B J Hayes
Jun 10, 2008·Theriogenology·A D BarthJ P Kastelic
Apr 15, 2011·Tropical Animal Health and Production·Mukesh BhakatM Sarkar
May 23, 2014·International Journal of Biometeorology·Silvio Renato Oliveira MenegassiFlávio Guiselli Lopes
Nov 28, 2016·Journal of Dairy Science·Edel M MurphySean Fair

❮ Previous
Next ❯

Citations

Nov 22, 2019·PloS One·Ravinder Anand-IvellRichard Ivell
May 24, 2020·Tropical Animal Health and Production·Kaustubh BhaveVincent Ducrocq
Aug 28, 2020·Frontiers in Genetics·Abdolrahman KhezriElisabeth Kommisrud
Jan 1, 2019·Reproduction, Fertility, and Development·M MikkolaJ Taponen
Feb 10, 2021·Reproduction in Domestic Animals = Zuchthygiene·Shaziya HussainSrikant Tyagi
Mar 6, 2021·Journal of Dairy Science·Allison E QuickKent A Weigel
Jul 11, 2021·Animal : an International Journal of Animal Bioscience·R RostellatoP Carnier
Aug 28, 2021·Antioxidants·Zofia E MadejaNatalia Rozwadowska

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.