Ikegwuonu F I, Aire T A, Heath E H
Biochem Exp Biol. 1979;15(1):7-12.
The development of testicular glutamate oxaloacetate (GOT) and glutamate pyruvate (GPT) transaminases and of 5'-Nucleotidase was monitored in the male Nigerian fowl. The findings indicated triphasic and monophasic oscillations of GOT and GPT respectively with age. 5(1)-Nucleotidase was found to decrease with increase in the chronological age of the chicks. Furthermore, while GOT and GPT exhibited cubic and quadratic relationships respectively with age and testicular weights, 5(1)-Nucleotidase was related to both variables in a quadratic manner. The results are discussed in terms of spermatogenesis which may bear profoundly on the overall reproductive performance traits of the Nigerian cockerel.
对尼日利亚雄鸡睾丸中的谷氨酸草酰乙酸转氨酶（GOT）、谷氨酸丙酮酸转氨酶（GPT）以及5'-核苷酸酶的发育情况进行了监测。研究结果表明，GOT和GPT分别随年龄呈三相和单相振荡。发现5(1)-核苷酸酶随着雏鸡实际年龄的增加而降低。此外，虽然GOT和GPT分别与年龄和睾丸重量呈三次方和二次方关系，但5(1)-核苷酸酶与这两个变量均呈二次方关系。从精子发生的角度对结果进行了讨论，这可能对尼日利亚公鸡的整体繁殖性能特征产生深远影响。
