Author:
Macmillan KL,Giles KH,Hart NL
Abstract
The concentration of a pyridine nucleosidase which cleaves the nicotinamide-ribose bond in NAD and related compounds was assayed using the cyanide addition reaction in semen samples collected by artificial vagina from 246 bulls. Among the 205 sires of recognized dairy breeds the nucleosidase concentration ranged from 0 to 1470 units/ml semen. Of the dairy sires 18 % produced semen containing no nucleosidase activity. Among the 41 sires of recognized beef breeds 54 % had no nucleosidase and the highest concentration was 630 units/ml semen.
Subject
Developmental Biology,Endocrinology,Genetics,General Materials Science,Molecular Biology,Animal Science and Zoology,Reproductive Medicine,General Medicine,Biotechnology
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献