Preparation of the Rabbit Doe to Insemination: a Review
ثبت نشده
چکیده
Correspondence: M.Theau-Clement, [email protected] Received September 2006 Accepted February 2007. ABSTRACT: This review analyses the main factors of success of insemination as well as the methods suitable for oestrus induction in order to improve reproductive efficiency of rabbit does in term of fecundity (combining fertility and prolificacy). Parity, lactation status, pseudopregnancy as well as sexual receptivity at the time of insemination highly influence reproductive performance. Pseudopregnancy (ovulation non-induced by GnRH or mating) strongly depresses fertility, but its cause is still unknown. The routine use of eCG (or PMSG) on lactating does consistently increases the proportion of receptive does at the time of AI and, therefore, their long-term productivity, without any important side-effect. Applied just before insemination, different alternative methods have been studied: animal manipulation (a change of cage, does gathering), “buck” effect, short damlitter separation, feeding programmes and light stimulations. Some of these methods improve the fecundity, but they sometimes also decrease kits growth (dam-litter separation, lighting programmes...). Consequently, for an optimal application in farms, it is important to consider long-term effects, such as global productivity and persistency of the effects. However, a better knowledge of the underlying physiological mechanisms would allow a better control of reproduction in rabbit farms.
منابع مشابه
Ovulation induction in rabbit does submitted to artificial insemination by adding buserelin to the seminal dose.
This study was aimed at determining if a GnRH analogue, buserelin, could be used for ovulation induction in rabbit does submitted to artificial insemination (AI) by intravaginal administration, by adding the hormone to the seminal dose. In a first experiment, 39 secondiparous experimental does (Hyplus strain PS19, Grimaud Frères, France, of about 30 weeks of age) were divided into 3 groups of 1...
متن کاملComparative evaluation of pregnancy rates in Dutch laboratory rabbit after insemination and natural breeding
متن کامل
Receptivity of the Rabbit Doe: Which Methods That Could Be Predictive for Receptivity
The aim of this study was to exam sexual receptivity in rabbit does at the day of artificial insemination using the colour of vulva, rectal temperature and vagina cytology by the percentage of keratinized cells. A total of 36 multiparous INAT does were used for this purpose and they were injected with PMSG before artificial insemination (AI). 48 hours after injection, does detected receptive, w...
متن کاملEffEct of cAMP-rElAtEd substAncEs on sElEctEd rAbbit rEProductivE PArAMEtErs
The aim of our study was to examine the effect of 3-isobutyl-1-methyl-xanthine (IBMX) and dibutyryl cyclic adenosine monophosphate (dbcAMP), stimulators of cAMP/protein kinase A-dependent intracellular signaling pathway, on reproductive function of gonadotropin-stimulated rabbit females. Ovarian cycle and ovulation in the control group were stimulated by PMSG (pregnant mare serum gonadotropin) ...
متن کاملSome Productive, Reproductive and Physiological Effects of Using Different Dietary Protein Levels in Rabbit Does
Three groups of 11 New Zealand White (NZW) rabbit does, each were reared from 12 weeks of age on iso-energetic diets containing 16, 14 or 12% crude protein (CP) were used to study influences on productive performance, digestibility, some carcass traits, haematological, biochemical and hormonal parameters of rabbit does. The results showed rabbits fed on 16% protein diet had heavier body weights...
متن کامل