Published in Translational Animal Science
Fertility is a critically important factor in cattle production because it directly relates to the ability to produce the offspring necessary to offset costs in production systems. Female fertility has received much attention and has been enhanced through assisted reproductive technologies, as well as genetic selection; however, improving bull fert...
Published in Cryobiology
The purpose of this study was to examine the effects of sub-lethal concentration of Xanthine oxidase (XO) on the post-thawed bull sperm quality. Semen samples were collected from four Holstein bulls, twice a week and during three consecutive weeks (n = 24 total ejaculates). After collection in each replicate, semen samples were pooled and then froz...
Published in Journal of Animal Science
Ergot alkaloids (EA) share similar structural properties to neurotransmitters and are able to elicit physiological responses in cattle that consume them by binding receptors such as the Dopamine type-2 receptor (DRD2). A single nucleotide polymorphism (SNP) in DRD2, previously found to be correlated to prolactin (PRL) serum concentrations was evalu...
Finding California Polytechnic State University, San Luis Obispo (Cal Poly) livestock available for purchase is difficult. While many people within the livestock industry recognize Cal Poly has animals available, dealing with Craigslist advertising, newspaper clips and advertisements in magazines can be cumbersome for the searcher and costly for th...
Published in Theriogenology
Kisspeptin (KP) is a neuropeptide integral in regulating puberty and gonadotropin releasing hormone. Compound 6 (C6), a KP analog, is more potent in vitro, has a longer half-life, and may have greater therapeutic applications than KP. To determine the acute and subacute effects of KP and C6 on serum concentrations of luteinizing hormone (LH), folli...
Published in Journal of Parasitic Diseases
A 9 years old bull was presented to the hospital with a history of scrotal swelling for a period of 12 days and progressive emaciation with intermittent fever. Clinical examination revealed the swollen and painful scrotum with fluid thrill, mild abduction and disorientation of hindlimbs were noticed. Ultrasonography of the testes revealed the anech...
El presente artículo pretende realizar un análisis histórico de una versión inédita de la Bula Audita Tremendi (1187). Este manuscrito se encuentra en el Add MS 24145, ubicado en la Western Manuscripts Collection de la British Library. Para ello se han llevado a cabo la paleografía y la transcripción íntegra del texto latino, acompañado por su resp...
Published in Systems biology in reproductive medicine
With artificial insemination (AI) and other precision dependent assisted reproductive technologies (ART) being followed in large scale in human and animal reproduction, assessing semen quality and fertilizability is under continuous scrutiny. Various tests have been developed to predict semen quality, but so far no single, highly reliable test is a...
Published in Animal reproduction science
Nerve Growth Factor-β (NGF) is a seminal plasma protein that regulates sperm physiology in bulls, yet its production and association with fertility remain unclear. The objective of this study was to describe NGF distribution in bull accessory sex glands, quantify its seminal plasma concentrations, and determine its association with sire conception ...
Published in Comparative Clinical Pathology
Very limited information is available on the trans-scrotal ultrasonography of cross-bred Ongole bulls with scrotal swelling in India. The present study was carried out on the bulls presented to the hospital with the history of scrotal swelling. Haematology revealed increased leucocyte count, neutrophilia and mild reduction in haemoglobin levels. Mi...
