Noblet G P, Gore T C, Noblet R
J Protozool. 1980 May;27(2):190-2. doi: 10.1111/j.1550-7408.1980.tb04679.x.
Eighteen domestic turkeys naturally infected with Leucocytozoon smithi Laveran & Lucet were maintained on restricted feeding schedules under conditions of either continuous light or natural light (light 13 h:darkness 11 h) photoperiods. Peripheral gametocyte numbers of L. smithi in all turkeys were determined every 2 h over a 36-h period. Peripheral gametocyte numbers of turkeys maintained under continuous light and restricted to either a 10-h feeding period (9:30 p.m. to 7:30 a.m.) once a day or a 2-h feeding period twice a day (7:30 a.m. to 9:30 p.m. and 7:30 p.m. to 9:30 p.m.) increased at or near the time of feed availability. Under natural photoperiod, gametocyte periodicity was not affected by restricting feed availability to the dark phase of the light-dark cycle. Mean parasite numbers were highest during the light phase when feed was not available, and lowest during the dark period when feed was accessible.
18只自然感染史氏白细胞原虫（Laveran & Lucet）的家火鸡，在持续光照或自然光（光照13小时：黑暗11小时）光周期条件下采用限饲方案饲养。在36小时内，每2小时测定一次所有火鸡体内史氏白细胞原虫的外周配子体数量。在持续光照且每天限饲一次、每次10小时（晚上9:30至早上7:30）或每天限饲两次、每次2小时（早上7:30至晚上9:30和晚上7:30至晚上9:30）的火鸡中，外周配子体数量在接近喂食时间时增加。在自然光照周期下，将喂食时间限制在明暗周期的黑暗阶段，配子体周期性不受影响。在不可获得食物的光照阶段，平均寄生虫数量最高，而在可获得食物的黑暗阶段，平均寄生虫数量最低。
