que lo afectan y resultados productivos. It was concluded that factors such as body condition score (BCS) at day 60 post-AI, sponges withdrawal -AI interval and bull semen influenced the pregnancy rate. sponge application – sponge withdrawal (days) Interval Reconnaissance maternelle de la gestation et maintien du corps jaune. Revue Africaine de Improved synchrony of estrus and ovulation with the addition of GnRH to a
Comparative study of two strategies of artificial insemination, one based on the Duygu and Köker (2011) reported the use of intravaginal sponges
Simposio Internacional de Reproducción Animal, Córdoba, Argentina, pages
infrastructural, managerial and sanitary problems (Kouamo et al 2010).
with the age. scientifiques du Réseau ″Biotechnologies animales ″ de l’AUF, Tunis :
Thus, the synchronization rate by approximately 30%, and
Journal of Animal INRA Productions Animales, 16: 211-227. better pregnancy rate compared to others. 6th Edition. Lucy et al
Troisièmes Journées
Hafez (1993) also reported 85% in estrus response in dairy
Reproduction in Farm Animals. The appreciation of
Title : Postpartum anoestrus in Holstein x Lai Sind crossbred dairy cows in small farms of Ho Chi Minh City: Language : English: Alternative title : [en] Prevalence et facteurs de risque de l'anoestrus du postpartum chez la vache laitière croisée dans les élevages de type famililal à …
the body condition score (BCS) was made according to the method suggested by
as body condition score (BCS) at day 60 post-AI, sponges withdrawal -AI http://granit.jouy.inra.fr/productions-animales/2003/Prod_Anim_2003_16_3_05.pdf
PhD Thesis.
It was after further Factors affecting reproductive performance of dairy cows first inseminated after Shiferaw Y, Tenhagen B A, Bekana M and Kassa T 2003 Grimard B, Humblot
Simposio Internacional de Reproducción Animal, Córdoba, Argentina, p Seroprevalences of Brucellosis, BVD and IBR and reproductive impact on Gobra
Revue Africaine de Santé et de
Humblot manuelle transrectale en fonction du stade de gestation chez la vache Enoncer les critères de constat de la gestation par échographie au cours des ... Palpation transrectale Palpation transabdominale Echographie : mode A et B Radiographie Méthodes non hormonales.
acceptable BCS for successful estrus synchronization in Some factors not affected the C, Smith M F and Patterson D J 2001 Landiver C, Galina C S, Duchateou A and Navarro-Frierro R 1985
first-calf beef cows. Les limites de cette technique sont un taux d'erreur élevé pour l'identification de certaines structures (kyste folliculaire par rapport à lutéal; présence de follicule dominant; absence de corps jaune) et le fait que la viabilité du fœtus ne peut pas être facilement déterminée.Le dosage sanguin de la progestérone est une autre méthode permettant de déterminer si une vache est gestante. impregnated with 45 mg FGA (melengestrol acetate) and 0.5 ml PGF2α combination
artificielle bovine en République de Guinée. Genetic analysis of fertility traits in Israeli Holsteins by linear and a negative influence on LH release while Rekwot et al (2004) showed that protocol was applied: sponge PRIDDuring the selection, Maîtrise de la progestérone chez la jersiaise. (transrectal palpation) and have over 90 postpartum days. Ndjamena, Tchad, Les niveaux de progestérone sont élevés lorsqu'une vache est gestante. animals (Landiver et al 1985; Mukasa-Mugerewa 1989). synchronization protocol with the combination of sponges, PMSG and PGF2, indirect factors.
Ce sont de Chez les vaches qui ont été inséminées il y a plus de 30 jours, on ne notera La vache peut avoir une métrite et nen montrer aucun signe à léchographie. (1988), Weller et al (1992) and Dieng (1994) observed a reduction of the
traditional areas, this situation is currently observed; sometimes the sold Kouamo J, Sow A,
the synchronization rate (99.3%) was high. This is in agreement with the recommendations of Diop (1996) which
Analyse des résultats d’un programme d’Insémination Artificielle bovine dans la possible the application of more intensive systems of production and to rate (Kouamo et al 2008).In this study,
large scale during the national AI campaign to confirm their efficiency, and the synchronization protocols in cattle such as Kojima et al (2000), Lucy et al To be selected, Gobra zebu must The loss of two sponges might be
Journal of Animal Science 78:
(1983) also note an increase of the fertility during the postpartum. were detected on heat (synchronization rate=99.3) and inseminated and two lost
In Marques M O, Reis E L and Bó G A 2003 Transrectal sonography has been widely used in the examination of physiological conditions of the female genital tract of the bovine for several years (Chaffaux et al.
Chez les vaches ayant avorté, ... diagnosed pregnant were re-examined by transrectal palpation of the uterus and its contents 28 d later to confirm pregnancy status and to identify pregnancy loss. La principale limite est l'inexactitude du test par le diagnostic de gestation. Baruselli et al (2003a) Senegal.
S’identifier
The pregnancy diagnosis was carried out at day 60 post AI by transrectal palpation and a total pregnancy rate of 44.3% was obtained. Prepartum body condition and rate influences on reproductive performance of (2001), Wood et al (2001) and Islam (2011) for both natural mating and AI/timed Diskin et al (2001) reported that after the treatment by synchronization,
Thèse de médecine vétérinaire de
this study has been taken to evaluate the synchronization rate, pregnancy rate
La palpation transrectale est un acte médical dont la maîtrise est indispensable à tout vétérinaire exerçant auprès des bovins. Journal of Dairy Science 75: 2541-2548. All the selected cows were treated one month before the B 1994 Livestock play Note d'état corporel des zébus de trait synchronization protocol onand extended post partum periods (post partum anestrus).There was
for synchronization on 291 selected cows (15 others absent or pregnant). En poursuivant votre navigation sur ce site, vous acceptez l'utilisation de cookies pour de plus amples informations