REPRODUCTIVE EFFICIENCY AND FOLLICULAR DYNAMIC OF CAMPOLINA MARES ACCORDING TO BODY CONDITION
DOI:
https://doi.org/10.5216/cab.v14i4.17693Keywords:
Animal reproductionAbstract
The aim of this study was to evaluate the effect of body condition (BC) on the reproductive efficiency and follicular dynamics of mares during the breeding season. We evaluated 134 mares (92 broodmares and 42 lactating) that were submitted to artificial insemination in November and December, and then put under natural controlled breeding, in alternating days, from January to March. They were kept under daily heat detection in group at field, so that at the moment it was detected, daily follicular control was initiated by rectal palpation until the detection of ovulation. The BC was evaluated in the months of August, November, January and March. Anestro rate was 26.11% and pregnancy rate was 56.7%; however, when considering only the cyclic mares, it was 77%. The number of cycles/conception was 2.3 and of mounts/cycle 2.1. The BC evolution affected (P< 0.05) the number of cyclic mares and the pregnancy rate. The month of breeding season and the BC influenced all follicular characteristics and pregnancy rate (P<0.05). We could conclude that the body condition affects the mare’s cyclical activity, follicular dynamics and fertility.
KEYWORDS: Body score; equine; pregnancy rate.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
