Siopes T D
Poult Sci. 1987 Mar;66(3):528-34. doi: 10.3382/ps.0660528.
Yearling Large White turkey breeder hens underwent pinealectomy (PX), bilateral ocular enucleation (EX), or both and were then photo-induced into reproductive activity. During the subsequent 20-week reproductive period, data were recorded for body weight, change in body weight, feed intake, egg weight, eggshell thickness, and percent settable eggs. A significant interaction between PX and EX treatments did not occur for any of the parameters of this study. Absolute body weight, feed intake, shell thickness, and percent settable eggs were not significantly affected by PX during the study, but PX significantly increased egg weights. Feed intake was significantly reduced by EX, but other parameters were not affected. Both PX and EX reduced body weight losses typically observed in breeder hens during an in-season egg laying cycle. It was concluded that the pineal gland and the eyes can influence body weight changes, egg size, or feed intake in breeder turkey hens during a reproductive cycle.
一岁的大白火鸡种母鸡接受了松果体切除（PX）、双侧眼球摘除（EX）或两者皆做，然后通过光照诱导进入繁殖活动期。在随后20周的繁殖期内，记录体重、体重变化、采食量、蛋重、蛋壳厚度和可孵化蛋百分比等数据。本研究的任何参数在PX和EX处理之间均未出现显著交互作用。在研究期间，绝对体重、采食量、蛋壳厚度和可孵化蛋百分比不受PX的显著影响，但PX显著增加了蛋重。EX显著降低了采食量，但其他参数未受影响。PX和EX均减少了种母鸡在季节性产蛋周期中通常出现的体重损失。得出的结论是，松果体和眼睛可在繁殖周期中影响种火鸡母鸡的体重变化、蛋大小或采食量。
