Journal Articles
Permanent URI for this collectionhttps://dspace.univ-soukahras.dz/handle/123456789/520
Browse
3 results
Search Results
Item HORMONAL LEVELS AND FOLLICULAR DYNAMICS IN RELATION TO THE OESTROUS CYCLE IN BARB AND ARABIAN MARES, ALGERIA(SCIENDO, 2021-06-29) HOUSSOU Hind; BOUZEBDA AFRI Farida; BOUZEBDA ZoubirThis current study is an effort to understand the hormonal and follicular growth in the Barb and Arabian mares during the oestrous cycle; as mares are unique creatures. A total of 53 mares with 97 oestrous cycles were studied. The mares with a mean age of 10.38 ± 4.55 were examined by ultrasonography every day during their breeding season (2017). Two blood samples from each mare (n = 24) were obtained for progesterone (P4), oestrogen (oestradiol-17 beta) and follicle-stimulating hormone (FSH) determinations. The data revealed that the duration of the oestrous cycle was between 19 to 22 days. The pre-ovulatory follicle grew (3.02 ± 1.04) millimetre per day. The rate of cycles exploited in the mare (Arabian versus Barb) for conception was significantly different (P < 0.001). The maximal diameter of the follicle was 50.00 millimetre. The serum progesterone levels (P < 0.01) in mares were significantly higher in the luteal phase than those recorded during the time of oestrous. However, the levels of oestradiol and for FSH did not significantly change during the oestrous cycle in the mares. Determining the association between the size of the follicle and the hormone profiles were the most reliable criterion in the prediction of ovulation.Item A Retrospective Study of Arabian Stallion Fertility Used in National Stud Farm of Tiaret (West of Algeria)(IDOSI Publications, 2018-03-15) HOUSSOU Hind; BOUZEBDA AFRI Farida; BOUZEBDA ZoubirThe aim of this paper to evaluate the stallion fertility in advance and to aid breeding management. The collection of a historical information about the Arabian stallions adults (n=101) and 495 mares with range age between (8 and 26) years in the national stud farm of Chaouchoua Tiaret. Fertility was measured using three endpoints: foaling rates (FR), percent pregnant per cycle (PC) and percent pregnant per season (PR) during (2003-2013).The pregnant per season rate (PR) was of 84 % The foaling rate (FR) was of 80%, the pregnancy cycle rate (PC) was of 96 % ; a strong correlation existed between the number of mares mated and (PC) (r= -0.59; p<0.01). We conclude that breeding records existed in many forms (foaling, pregnancy per cycle, or per season rates), but there is still a need to develop tests that can predict fertility with a reasonable degree of certainty before the stallion has begun his breeding career.Item BENIDIR Mohamed(Agricultural Research Communication Centre, 2020-09-03) HOUSSOU Hind; BOUZEBDA AFRI Farida; BOUZEBDA ZoubirThis study was carried out at National Haras of Tiaret (west of Algeria) to understand and to compare the normal sexual behavior and libido of stallions (Arabian vs Barb) while mounting a mare in estrus. Eighty-four stallions were divided into two groups from 5 to 24 years of age (n=47 Arabian; n=37 Barb). Results revealed significant differences between Arabian and Barb stallion: in sniffing(p<0.001), libido score (p<0.05), flehmen response (p<0.05), time to first mount with erection (p<0.05), number of mounts to ejaculation (p<0.05) and mount time for ejaculatory (p<0.01). These stallions were exactly tested in the same place and conditions allowed us to discard any side effects due to animal management or any other confounding bias. Our study provided us the knowledge of sexual behavior under Algerian environmental conditions and the distinction between Arabian and Barb stallion in their sexual behavior expression