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- That is a result calculated by the scientific research department through mutual modification of breeding rate, egg laying rate, hatchability and survival rate surveyed. 这是科研部门用测得的繁殖率、产卵率、孵化率、成活率等因素互为修正得出的结果。
- Reasons and countermeasures of descendant of laying rate during egg laying peak in layers 蛋鸡产蛋高峰期产蛋率下降的原因及对策
- egg laying rate 产卵率
- Hatchling sex ratio at this beach possibly depends on the date of egg laying. 雉龟的性别比则可能受到产卵的时间所决定。
- The lack of a good nesting spot can cause some females to withhold egg laying, with dangerous consequences. 因为没有良好的产卵地点的话会使某些雌性拒绝产卵，而这会导致危险的后果。”
- Egg laying peaks are found twice a day. One is at dawn and the otherafter the activity peak in the evening. 蚊群当黄昏活动高峰后和黎明时各出现一次产卵高峰。
- Egg laying peaks were twice a day. One was at dawn and the other after the activity peak in the evening. 每d有两次产卵高峰，分别为黎明和夜晚活动高峰后；
- Contain kinds of aa, it can enhance laying rate prominent and weighting of Dorking. 由于富含各种氨基酸,少量添加即可显著提高产蛋率及肉鸡日增长量。
- The laying rate at the age of 68 weeks of 3 breeds, ( Shaoxing duck, Khaki-Campbell duck and Gaoyou duck), were fitted by Wood Model. 用认七od模型拟合了绍兴鸭、卡基一康贝尔鸭和高邮鸭3个品种68周龄的产蛋率资料，3个品种鸭拟合的留值(拟合度)分别为:0.;6098、0
- Keywords SPF chicken;SPF egg;Laying rate;Egg weight;Diet;Feed; 无特定病原鸡;SPF鸡;产蛋率;利用率;饲料;
- Nine blood biochemical indices of White Leghorn Line S220 chicks at age of 8 and 12 weeks were tested. The phenotypic and genetic correlations between these indices and egg laying performance as well as heritabilities of these indexes were estimated. 测定了8、12周龄S220母雏9项血液生化指标,估测其遗传力及其与产蛋性能间的表型相关和遗传相关。
- It was found that the egg diameter(D) showed a ten dency to relate positively to the body size of the egg laying females, and was correlated negatively with the field sea water temperature (t), being fitted by D=atb. 卵径大小(D)似与产卵雌体大小呈正相关; 而与海区水温(t)呈负相关,并可拟合为D=a·t~b。
- For Silkies without broody occurrence in the first half egg laying cycle, PRLR3 and PRLR6 did not influence egg production traits including age at first egg, weight of first egg, egg weight at 40 wks, and egg number at 40 wks (P>0.05). 丝羽乌骨鸡群体中;PRLR3和PRLR6位点变异对未曾发生过就巢的丝羽乌骨鸡产蛋性状(开产日龄、开产蛋重、40周龄蛋重和40周龄产蛋量)影响均不显著(P>0.;05)。
- Blake; Aristolochia chanpionii and Cymbopogon citrate, IIPC were 0.048, 0.141, 0.244, 0.295 respectively, the result of deterrent the egg laying of tabacco whitefly was above 70% . Blake、马兜铃Aristolochia chanpionii、香茅Cymbopogon citratus Stapf.;的IIPC值分别为0
- He tried to varnish over the truth with a lie. 他试图用谎言来掩盖真相。
- laying rate drop, eggshell achromachia; 产蛋率下降，蛋壳发白；
- Objective To investigate the eggs laying characteristic of the reared population of Lucilia sericata. 摘要目的观察丝光绿蝇室内种群在整个产卵期内的产卵量动态变化规律。
- Discussion on the Air Control in Egg Laying Room 浅谈产卵室空气
- He had to lie down for a while to rest his legs. 他得躺下一会儿让腿休息一下。
- The petition was ordered to lie on the table. 该请愿书奉命暂搁一边，以后讨论。
