Abdou M S, Hassun T M, El-Sawaf S A
Aust J Biol Sci. 1978 Jun;31(3):257-66. doi: 10.1071/bi9780257.
Testicular parameters, parenchymal spermatid concentration, and epididymal sperm reserves were measured in tracts obtained from 16 Awassi rams classified into three age groups (1, 1.5 and 2.5 years old). Between 1 and 2.5 years of age the paired testis weight increased from 164.9 to 315.2 g, the testicular spermatid number (X 10(9)) increased from 15.9 to 55.8, and the total epididymal sperm reserves (X 10(9)) increased from 11.1 to 98.8. Significant correlations were found between the paired testis parenchyma weight and all testicular dimensions and size. Testicular spermatid numbers and concentration were correlated with paired testis weight (r = 0.91 and 0.63), paired testis volume (r = 0.92 and 0.64) and all testicular measurements, particularly paired length X depth (r = 0.92 and 0.66). Regression coefficients between all parameters were essentially linear and highly significant, allowing accurate predictions of testis weight, volume and spermatid numbers to be made. The total epididymal sperm reserves and the sperm content of each of the caput, corpus and cauda of the epididymis were correlated with the paired weights of the epididymis (r = 0.73, 0.75, 0.73 and 0.70), the testis (r = 0.76, 0.83, 0.91 and 0.72), the total spermatid numbers in testicular homogenates (r = 0.70, 0.85, 0.91 and 0.64), and spermatid concentration (r = 0.56, 0.75, 0.72 and 0.49). The storage capacity of the cauda epididymides appeared to develop more slowly than the rate of sperm production because at 2.5 years of age it was about 1.5 and 2.8 times that in rams aged 1.5 and 1 year respectively.
对16只分为三个年龄组（1岁、1.5岁和2.5岁）的阿瓦西公羊的生殖系统进行检测，测量睾丸参数、实质内精子细胞浓度和附睾精子储备。在1至2.5岁之间，成对睾丸重量从164.9克增加到315.2克，睾丸精子细胞数量（X10(9)）从15.9增加到55.8，附睾总精子储备（X10(9)）从11.1增加到98.8。成对睾丸实质重量与所有睾丸尺寸和大小之间存在显著相关性。睾丸精子细胞数量和浓度与成对睾丸重量（r = 0.91和0.63）、成对睾丸体积（r = 0.92和0.64）以及所有睾丸测量值相关，特别是成对长度X深度（r = 0.92和0.66）。所有参数之间的回归系数基本呈线性且高度显著，从而能够准确预测睾丸重量、体积和精子细胞数量。附睾总精子储备以及附睾头、体、尾各部分的精子含量与附睾成对重量（r = 0.73、0.75、0.73和0.70）、睾丸（r = 0.76、0.83、0.91和0.72）、睾丸匀浆中的总精子细胞数量（r = 0.70、0.85、0.91和0.64）以及精子细胞浓度（r = 0.56、0.75、0.72和0.49）相关。附睾尾的储存能力似乎比精子产生速率发展得更慢，因为在2.5岁时，其储存能力分别约为1.5岁和1岁公羊的1.5倍和2.8倍。
