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Effect of different photoperiods and melatonin treatment on New Zealand white rabbit behavior and performance [electronic resource].

By:

Mousa-Balabel, T. M

Contributor(s):

Mohamed, R. A

Language: English Summary language: Arabic Description: p.315-333Other title:

تأثير فترات الإضاءة المختلفة والمعاملة بالميلاتونين على سلوكيات وأداء الأرانب النيوزيلاندي [Added title page title]

Uniform titles:

kafrelsheikh veterinary medical journal, 2011 v. 9 (1) [electronic resource].

Subject(s):

Online resources:

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In: Kafrelsheikh Veterinary Medical Journal 2011.v.9(1)Summary: This study was started in September 1, 2009 and planned to study effects of different lighting regimes and melatonin treatment on the receptivity and performance of 78 New Zealand White rabbits (60does and I8-bucks) reared in a private Rabbitary in Menuojia Governorate, Egypt. These animals were randomly assigned to six treatment groups of 10 does and three bucks per each (8, 10, 12, 14 and 16 hours light and melatonin treated). Ejaculate traits, sexual activity of bucks, sexual receptivity and reproductive performance of does were recorded. The results revealed that exposure ofrabbits to long photoperiods (14 and I6HL) or treatment with melatonin improved the quantity and quality ofejaculate traits and buck sexual activity. Moreover, does sexual receptivity, feed intake, litter size and weight at birth and weaning was increased by long photoperiods (14 and I6HL) or treatment with melatonin. On the other hand, gestation period and pre-weaning mortality percent was decreased. It can be concluded that application oflong photoperiods is benejicial to rabbit producers and I4HL:lOHD is optimal for satisfYing the biological requirements ofthe rabbits. Finally, the light schedules can be used as biostimulation instead ofmelatonin.

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This study was started in September 1, 2009 and planned to study effects of different lighting regimes and melatonin treatment on the receptivity and performance of 78 New Zealand White rabbits (60does and I8-bucks) reared in a private Rabbitary in Menuojia Governorate, Egypt. These animals were randomly assigned to six treatment groups of 10 does and three bucks per each (8, 10, 12, 14 and 16 hours light and melatonin treated). Ejaculate traits, sexual activity of bucks, sexual receptivity and reproductive performance of does were recorded. The results revealed that exposure ofrabbits to long photoperiods (14 and I6HL) or treatment with melatonin improved the quantity and quality ofejaculate traits and buck sexual activity. Moreover, does sexual receptivity, feed intake, litter size and weight at birth and weaning was increased by long photoperiods (14 and I6HL) or treatment with melatonin. On the other hand, gestation period and pre-weaning mortality percent was decreased. It can be concluded that application oflong photoperiods is benejicial to rabbit producers and I4HL:lOHD is optimal for satisfYing the biological requirements ofthe rabbits. Finally, the light schedules can be used as biostimulation instead ofmelatonin.

Summary in Arabic.

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