Use of Nonsettable Eggs to Evaluate Turkey Hen Fertility
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Ahemeral lighting of turkey breeder hens. 2. Early age at lighting and reproductive performance.
An experiment was conducted to determine whether ahemeral lighting (AH) could be used to obtain increased egg weight and poult weight and otherwise normal reproductive performance in Large White turkey hens lit as early as 26 wk of age. The experimental design utilized a 2 x 2 factorial arrangement of treatments that evaluated two light cycle lengths (24 h, control and 28 h, ahemeral) at two he...
متن کاملImproved effectiveness of artificial insemination of turkey hens associated with ahemeral light-dark cycles and age at photostimulation.
In lighting studies with turkey hens, long ahemeral (AH; non-24 h) light-dark cycles have consistently resulted in greater, although not statistically significant, fertility than control 24 h light-dark cycles. The present study was designed to further evaluate AH lighting effects on fertility by an evaluation of the effectiveness of artificial insemination (AI) under less than optimal conditio...
متن کاملSire and Dam Effects on Fertility, Inner Periv- Itelline Membrane Sperm Binding and Embryonic Survival of Turkeys Selected for Increased Egg Production or Body Effect of Vitamin E on Fertility after Artificial Insemination with Liquid-stored Turkey Spermatozoa
s of papers 47 and a mid-production period (12-16 wks of production). The SP hole distribution indicated that 85% of hens had between 21 and 100 holes. Depending on the sire, the data exhibited differences due to hen or hen by period interactions. These results indicated that eggs from hens inseminated with semen from the same sire had significantly different numbers of IPVL SP holes. This sugg...
متن کاملA Survey on Turkey Rearing in Rural Areas of Kwara State, Nigeria
A participatory rural appraisal technique (PRAT) was used to obtain information from 132 randomly selected turkey farmers in two out of four agricultural development zones in Kwara state, Nigeria. Data were obtained on socio-occupational status of farmers, their production objectives, experience, flock structure, management practices, marketing and consumption of turkey eggs. The results showed...
متن کاملIncreased egg production in juvenile turkey hens after active immunization with vasoactive intestinal peptide.
Juvenile turkey hens were actively immunized against vasoactive intestinal peptide (VIP) prior to photostimulation to evaluate its effect on enhancing egg production. VIP antibody titers were generated in the VIP immunized hens and a greater rate of egg production per hen was observed compared to controls. In addition, the first egg laying cycle was extended for an additional 7 wk without a sig...
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تاریخ انتشار 2017