Fertility following intracervical or intrauterine laparoscopic insemination of ewes using extenders based on coconut water
DOI:
https://doi.org/10.11606/issn.1678-4456.bjvras.2006.26534Keywords:
Extender, Powder coconut water, Intra-cervical insemination, Intrauterine laparoscopic insemination, EwesAbstract
The objetive of this study was to evaluate pregnancy rates in ewes using extenders based on coconut water (in natura: NCW or in powder: PCW-102®) following intra - cervical (Trial 1) or intrauterine laparoscopic insemination (Trial 2). Trial 1. Semen from 4 Santa Inês rams were collected, diluted at 32°C (T1: NCW; T2: PCW-102®) and cooled to 4°C. 56 adult Santa Inês ewes were inseminated intra-cervically following syncronization, 31 using the extender NCW and 25 the extender PCW-102®. Trial 2. Semen from 5 rams (Santa Inês: n=04; Dorper n=01) were collected and processed as described. 64 adult crossbred multiparous ewes were inseminated intrauterine by laparoscopy following oestrus syncronization. 37 ewes using the extender NCW and 27 the extender PCW-102®. The pregnancy diagnosis was performed by ultrasonography. The fertility rates between treatments for each method of insemination and within each extender for both methods were analysed by Chi-square test (p<0,05). The pregnancy rates following intra-cervical (NCW: 25.8% vs PCW-102®: 48%) and intrauterine (NCW: 72.9% vs 70.3%) inseminations were not influenced by the extenders. The pregnancy rate was influenced by insemination method (intra-cervical: 35.7% vs laparoscopy: 71.8%; p<0,05). The extenders based coconut water as basis can be used following cervical or intra-uterine laparoscopic inseminations in ewes from Northeast of Brazil under field conditions.Downloads
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Published
2006-12-03
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1.
Machado VP, Nunes JF, Araújo AA de, Fernandéz DRP, Cordeiro MA, Medeiros CHN de, et al. Fertility following intracervical or intrauterine laparoscopic insemination of ewes using extenders based on coconut water. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2006 Dec. 3 [cited 2024 Jun. 30];43(supl.):43-9. Available from: https://revistas.usp.br/bjvras/article/view/26534