Liu S J, Zheng J X, Yang N
Department of Animal Genetics and Breeding, College of Animal Science and Technology & State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing, China.
Poult Sci. 2008 Jan;87(1):155-9. doi: 10.3382/ps.2007-00300.
The semen quality factor (SQF) takes into account 3 semen parameters as a means of predicting semen fertilizing ability: semen volume, semen concentration, and the percentage of live and morphologically normal spermatozoa. The objective of this study was to test the suitability of the SQF as an indicator of fertility for geese. Twenty-one ganders were divided into 3 groups based on their individual SQF values, and semen was pooled within each group. A fourth semen group was generated by diluting semen from the highest SQF group with 2 vol of diluent. Pooled semen was inseminated into 30 geese per treatment. Relationships between SQF and fertility were evaluated. Testosterone and estradiol levels in seminal plasma were determined by competitive immunoassays. The SQF values of the 4 diluted semen groups were 19.3, 11.3, 9.5, and 13.1, and the corresponding fertility values, determined by candling, were 83.9, 65.6, 56.8, and 74.3%, respectively. The correlation coefficient between SQF and fertility was 0.985 (P < 0.01), indicating that the SQF can be used as a good indicator of fertility for geese. The SQF values correlated well with the ratio of testosterone to estradiol in seminal plasma (r = 0.48, P < 0.05), which could also be a diagnostic tool for evaluating the reproductive potential of individual ganders.
精液质量因子（SQF）考虑了3个精液参数，以此作为预测精液受精能力的一种方式：精液量、精液浓度以及活的和形态正常的精子百分比。本研究的目的是测试SQF作为鹅繁殖力指标的适用性。根据个体SQF值将21只雄鹅分为3组，并在每组内汇集精液。通过用2倍体积的稀释剂稀释来自最高SQF组的精液来生成第四个精液组。将汇集的精液分别输精到每组30只鹅体内。评估SQF与繁殖力之间的关系。通过竞争性免疫测定法测定精浆中的睾酮和雌二醇水平。4个稀释精液组的SQF值分别为19.3、11.3、9.5和13.1，通过照蛋确定的相应繁殖力值分别为83.9%、65.6%、56.8%和74.3%。SQF与繁殖力之间的相关系数为0.985（P<0.01），表明SQF可作为鹅繁殖力的良好指标。SQF值与精浆中睾酮与雌二醇的比值相关性良好（r = 0.48，P<0.05），这也可能是评估个体雄鹅繁殖潜力的一种诊断工具。
