Siopes T D
Department of Poultry Science, North Carolina State University, Raleigh 27695-7608.
Poult Sci. 1992 Jun;71(6):939-44. doi: 10.3382/ps.0710939.
Two trials were conducted to determine whether light intensity levels during the prelay (light restriction) and the lay (egg production) periods influenced subsequent photoinduced reproductive performance of turkey breeder hens. The light intensity levels were 22 and 270 lx and each was provided during the prelay and lay periods in a factorial arrangement. Each of the period light intensity levels were applied to half of the hens from each prelay treatment group. Data were collected for BW, rate of reproductive development, egg production, fertility, hatchability, egg weight, and poult weight. There were no interactions between the prelay and lay period treatments, nor a consistent prelay light intensity effect on rate of initiation of lay or duration of time to achieve 50% production. In addition, prelay and lay light intensity levels had no consistent effects on rate of lay, percentage of fertility and hatchability, egg weight, and poult weight. It was concluded that there was no advantage to the use of high-intensity light during short-day light restriction of the prelay period on subsequent reproductive performance.
进行了两项试验，以确定产蛋前（光照限制）和产蛋期（产蛋）的光照强度水平是否会影响随后火鸡种母鸡的光诱导繁殖性能。光照强度水平为22勒克斯和270勒克斯，并且在产蛋前和产蛋期以析因设计提供每种光照强度。每个时期的光照强度水平应用于每个产蛋前处理组一半的母鸡。收集了体重、生殖发育率、产蛋量、受精率、孵化率、蛋重和雏禽体重的数据。产蛋前和产蛋期处理之间没有相互作用，产蛋前光照强度对产蛋开始率或达到50%产蛋量的持续时间也没有一致的影响。此外，产蛋前和产蛋期的光照强度水平对产蛋率、受精率和孵化率、蛋重和雏禽体重没有一致的影响。得出的结论是，在产蛋前期短日照光照限制期间使用高强度光照对随后的繁殖性能没有优势。
