Rebreeding New Zealand Red Rabbit After False Pregnancy
- 7 лет назад
False pregnancies can be triggered by the mounting behavior by a male or another female rabbit in an attempt to establish dominance.\r
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Pseudopregnancy is the result of ovulation and the release of ova. The corpus luteum and the uterus begin to develop and prepare for gestation and mammary glands may swell. Since there is no fertilization of the ova, the levels of hormones that promote gestation remain low. Around the 12th day of the pseudopregnancy, the corpus luteum and the uterus start to regress, accompanied by mammary gland involution. Between the 15th and 18th day, an increase in estrogen secretion and a drop in progesterone level occurs. These changes trigger maternal behavior and loosening of the hair. While building her nest, the female rabbit will pull out abdominal or shoulder hair and begin frenetic gathering of various materials (e.g., hay, paper) to use in its construction. This behavior lasts 1 to 3 days, after which the rabbit resumes its usual habits.
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Pseudopregnancy is the result of ovulation and the release of ova. The corpus luteum and the uterus begin to develop and prepare for gestation and mammary glands may swell. Since there is no fertilization of the ova, the levels of hormones that promote gestation remain low. Around the 12th day of the pseudopregnancy, the corpus luteum and the uterus start to regress, accompanied by mammary gland involution. Between the 15th and 18th day, an increase in estrogen secretion and a drop in progesterone level occurs. These changes trigger maternal behavior and loosening of the hair. While building her nest, the female rabbit will pull out abdominal or shoulder hair and begin frenetic gathering of various materials (e.g., hay, paper) to use in its construction. This behavior lasts 1 to 3 days, after which the rabbit resumes its usual habits.