DESIGN AND MANUFACTURE MECHANICAL SYSTEM FOR PRODUCE INTRAVAGINAL SPONGES IMPREGNATED WITH PROGESTERONE FOR SYNCHRONIZATION OF ESTROUS CYCLE IN SHEEP

Alkhazraji, A.A.; Hobi, A.A.; Abdul Kareem, T.K.; Alabdaly, K.A.M.

	DESIGN AND MANUFACTURE MECHANICAL SYSTEM FOR PRODUCE INTRAVAGINAL SPONGES IMPREGNATED WITH PROGESTERONE FOR SYNCHRONIZATION OF ESTROUS CYCLE IN SHEEP
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 14, Issue 5, 2009, Pages 0-0
Authors
A.A. Alkhazraji; A.A. Hobi; T.K. Abdul Kareem; K.A.M. Alabdaly
Abstract
Sponges were used for synchronization of estrous cycle in sheep and goats in most countries in the world. A mechanical system for manufacturing sponges was produced for commercial purpose, it was simple, rigid and economical design, it consists of sponge's cutter instrument with capacity of 100 sponges/hr.and hormone saturation sponge's instrument with capacity of 120 sponges/hr. Two experiments were conducted to test sponge's production which produced locally. First one was carried out at Alwardia sheep farm, Iraqi atomic energy commission during summer ,2001.Twenty Awassi ewes (2-3 yrs.of age) were randomly divided into two equal groups ,first group (n=10) was left without treatment (C) , local intravaginal sponges impregnated with 40mg progesterone acetate(MAP) were inserted in ewes of group two (T) for 12 days. All ewes were separated from rams before and within treatment, after sponges withdrawal ewes of two groups were exposed to rams for matting for three days period. Results obtained indicated that ewes in group two were exhibited the highest (p<0.05) rate of estrous namely 2,5 and 3 ewes after 24,48 and 72 hrs.respectively,in the comparison with 0,0 and 2 ewes respectively in the control groups. Second experiment was conducted in State Board of Agricultural Research/Ministry of Agriculture (MOA), eighteen ewes (3-4 yrs.of age) out of breeding season (22/1/2002) were divided into two groups, first group(N=9) were left without treatment (C), second group were treated with local intavaginal sponges impregnated with 40 mg medroxy progesterone acetate(MAP) by inserted in ewes(T) for 12 days, all ewes were separated from rams before and within treatment, ewes of two groups were injected with 500 I.U. pregnant mare serum gonadotrophin (PMSG) at the time of sponges removal and exposed to rams for matting for three days. Results obtained revealed that ewes in the second group (T ) were exhibited the highest (p<0.05) rate of estrous namely 3 and 3 ewes after 48 and 72 hrs.respectively versus 1 and zero ewes in the control group,wheares control group showed highest rate of estrous (2 ewes) after 24 hrs. In the comparison with one ewes in treatment group, but differences were not significant. We conclude that local sponges were induced estrous cycle successfully in the breeding season and out of it.

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