山羊奶中环核苷酸含量与产奶性能的关系

根据激素作用的第二信使理论,利用放射免疫测定技术对乳中环核苷酸(cAMP与cGMP)含量及与产奶性能有关的生化指标进行了研究,结果表明,不同产奶性能和不同遗传性状的奶山羊乳汁中环核苷酸的含量有显著差异,证明以环核苷酸,尤其是cGMP含量作为奶山羊产奶性能选育的指标是有价值的,为奶畜的良种选育工作提出了新的见解。

THE CONTENTS OF cAMP/cGMP IN GOAT MILK AND MILK PRODUCING PERFORMACES

Based on the Second messenger principle of hormore action, the contents of cyclic adenosin monophosphate (cAMP) and cyclic Gunbsine monphosphate(cGMP) in goat milk were determined using radioimmuno -assay (RIA) technique. Some biochemical indexes in connection with milk producing performances were also studied. Results indicatod that the contents of cAMP and cGMP in milk in goats with different milk producing performaces and different genetic traits were greatly significant. It is proved that the contents of cAMP and cGMP particularly used as the criteria in selecting milk producing performaces are valuable. Thus, a new breakthrough is provided for dairy animal selection and breeding.