Effects of fescue toxicosis on bull growth, semen characteristics, and breeding soundness evaluation1
نویسندگان
چکیده
منابع مشابه
Effects of fescue toxicosis on bull growth, semen characteristics, and breeding soundness evaluation.
Tall fescue possesses heat, drought, and pest resistance conferred to the plant by its mutualistic relationship with the ergot alkaloid producing fungal endophyte, Neotyphodium coenophialum. The objective of this study was to evaluate the impact of ergot alkaloid consumption on growth, scrotal circumference (SC), and semen quality. The SC measurement and percentage of motile and normal sperm we...
متن کاملBILL E. KUNKLE INTERDISCIPLINARY BEEF SYMPOSIUM: Does tall fescue toxicosis negatively impact bull growth and breeding potential?
The predominant cool-season forage in the southeastern United States is the tall fescue cultivar Kentucky 31 (KY31). Kentucky 31 possesses an endophyte (), which produces a family of toxins called ergot alkaloids. These toxins negatively affect the physiology of animals on consumption and result in the syndrome known as fescue toxicosis. Currently, the United States annually produces approximat...
متن کاملBull breeding soundness evaluation in Southern Africa.
The motivation for and process leading up to the publication of a new bull breeding soundness certification standard endorsed by the South African Veterinary Association is described. The veterinary certificate of bull breeding soundness and explanatory notes and minimum standards are shown. The first component of the certificate is a declaration by the veterinarian that the bull complies with ...
متن کاملBeyond Bull Breeding Soundness Evaluations ( BSEs )
The capability of bulls to distribute their genetics is dependant upon their fertility, whether they are used for natural breeding or A.I. In turn, herd reproductive performance has been shown to have a greater impact on economic returns than either growth rate or product quality (Wiltbank 1994). Here, chute-side math indicates it takes approximately 5 generations (15 years) using bulls of 10% ...
متن کاملThe Bull Sperm MicroRNAome and the Effect of Fescue Toxicosis on Sperm MicroRNA Expression
Tall fescue [Schedonorus phoenix (Scop.) Holub] accounts for nearly 16 million hectares of pasture in the Southeastern and Mid-Atlantic U.S. due to its heat, drought, and pest resistance, conferred to the plant by its symbiotic relationship with the endophyte Neotyphodium coenophialum. The endophyte produces ergot alkaloids that have negative effects on the growth and reproduction of animals, r...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 2013
ISSN: 0021-8812,1525-3163
DOI: 10.2527/jas.2012-6078