Prominent Signs of Oestrusin the West African Dwarf Goat
Subject Areas : Camel
آ. کنفاک
1
(
Department of Animal Productions, University of Dschang, Dschang, Cameroon
)
اف. نگولا
2
(
Department of Animal Productions, University of Dschang, Dschang, Cameroon
)
جی.پی. یومبی-مالونگا
3
(
General Delegation of Scientific and Technologic Research, Brazzaville, Congo
)
اف. تندونکنگ
4
(
Department of Animal Productions, University of Dschang, Dschang, Cameroon
)
اچ.اف. دفانگ
5
(
Department of Animal Productions, University of Dschang, Dschang, Cameroon
)
آر. ابا-یکا
6
(
Ministry of Agriculture and Livestock, Brazzaville, Congo
)
دی. توگولا
7
(
Institute of Rural Economy, Bamako, Mali
)
ای. پامو تدونکنگ
8
(
Department of Animal Productions, University of Dschang, Dschang, Cameroon
)
Keywords: age, heat, signs, West African Dwarf goat,
Abstract :
In order to study the signs of œstrus in the West African Dwarf goat, 28 non pregnant females younger than 24 months of age were used. Most of them (94.7%) had waggled the tail during heat. The frequency of micturition was higher in the presence of the male. The swelling of the vulva was observed in 68.4% of goats in heat. The cervico-vaginal mucus was significantly (P≤0.05) abundant and elastic during œstrus. The duration of œstrus was 1.91± 0.07 day and increased with the female age.Signs of heat were less prominent in younger than in older females. Behavioural changes, vulva appearance and the characteristics of cervico-vaginal mucus can be used as criteria for detection of œstrus inthe West African Dwarf goat.
Abdel Rahim S.E.A. and Nazir A.E. (1987). Electric resistance of the vaginal mucus as an aid for heat detection in sheep. Vet. Res. 121,522-527.
Adam L. and Aizinbud E. (1981). Impedometric properties of the vulva and vaginal tissues of ewes during oestrus cycle.J. Reprod. Fertil. 61, 11-17.
Ball P.J.H. and Peters A.R. (2004). Reproduction in Cattle. Blackwell, Great Britain.
Baril G., Chemineau P., Cognié Y., Guérin Y., Lebœuf B., Orgeur P. and Vallet J.C.(1993). Manuel de Formation Pour l’insémination Artificielle Chez les Ovins et les Caprins. FAO Study: Anim. Prod. Health. Rome.
Burns P.D., Wailes W.R. and Baker P.B. (2002). Changes in reticular and rectal temperature during the periœtrous period in cows. Anim. Sci. 80,128-135.
Delgadillo J.A., Malpeaux B. and Chemineau P. (1997). Goat reproduction in tropical and subtropical areas. INRA. Prod. Anim. 10(1), 33-41.
Fabre-Nys C. (2000). Goat sexual behaviour: hormonal control and social factors. INRA. Prod. Anim. 13(1), 11-23.
Fischer F. and Morton R. (2008). Evaluation of a new approach for the estimation ofthe time of the LH surge in dairy cows using vaginal temperature andelectrode less conductivity measurements. Theriogenology. 70(7),1065-1074.
Hafez E.S.E. and Hafez B. (2000). Reproductive cycles. Pp. 55-67 in Reproduction of Farm Animals. E.S.E. Hafez and B. Hafez Eds. Lippincott Williams and Wilkins, South Carolina, USA.
Jansenc J. and Van Den Burg K. (2004). Goat Breeding in Tropical Area. Agrodok. 3ed Ed. Kortenhorst, Wageningen, Netherland.
Mtaallah B. and Ben Younes A. (2001). Reproduction in goat: management and particularities.El Baytary. 27, 31-37.
Ngoula F., Tchoumboué J., Benga L.N., Ninseko B., Kenfack A., Watcho P., Tedonkeng F. and Mingoas J.P. (2008). Signs of haet in Djallonke ewe. Bull. Anim. Helth. Prod. Afr. 56, 144-153.
Obounou Z.L. (1990).Heat detection in ewe using acidity and elasticity of cervico-vaginal mucus and vagina temperature. Tropicultura. 8, 27-35.
Rezac P. and Krivaneki L. (2001). Changes of vaginal and vestibular impedance indairy goatsduring the œstrus cycle. Small Rumin. Res. 42, 183-188.
Senger P.L. (2005). Pathway to Pregnancy and Parturition. 2nd Ed. Pulman, Washington.
Tamboura H., Sawadogo L. and Wereme A. (1998). Endocrine and temporal characteristics of puberty and œstrus cycle in Mossi local goat of Burkina-Faso. Biotechnol. Agron. Soc. Environ. 1, 85-91.
Zarrouk A., Souilem O., Drion P.V., Beckers J.F. (2001). Characteristics of reproduction in goat.Ann. Méd. Vét. 142, 171-184.