Comparative study between different methods of insemination in Iraqi does

الملخص EN

Present experimental was carried out on 22 does 2-4 years old.

The aim was to induction of estrous in non-breeding season using impregnated sponge with 20 mg of med Roxy progesterone acetate (MPA) for 13 days and with an I / m injection of 500 IU Pregnant Mare Serum Gonadotropin (PMSG) hormone 24 hrs.

Before sponge withdrawal and to compare the pregnancy rate using three different methods of insemination; natural , cervical and laparoscopic artificial insemination at fixed time 24-48 hrs.

after estrous onset.

All does were showed signs of estrous (100 %), the estrous time was 46.9 ± 4.90hrs (24-60hrs) after sponge withdrawal.

While estrous length was 37.09 ± 1.91 (24–72hrs).

All experimental animals followed up by abdominal palpation, ultrasonography at 30, 60 and 90 days post-insemination, while the laparoscopic examination was performed at day 30 post-insemination, to improve the efficiently of the different methods of inseminations in pregnancy rate ultrasonographical diagnosed by rectal and abdominal methods of 14 does post-inseminations appeared that two were pregnant, seven suspected and five non pregnant.

At day 60th, post-insemination the pregnancy diagnosis of (22) does appear that (14) were pregnant, six suspected and two non-pregnant.

While at day 90, the examination of all does appeared that (16) animals were pregnant and six were not.

The laparoscopic examination, at 30 days post-insemination showed that eight does were pregnant, two suspected and two were not pregnant.

In conclusion that the pregnancy rate of laparoscopic insemination is (75 %), comparisons to natural (66.7 %) and cervical AI method (75 %) but there is no significant different between them, while the kidding percentage was appear in natural insemination (75 %), cervical (100 %) and laparoscopic insemination (150 %).

The results of this study indicate that estrus can be efficiently induced in female goats during non-breeding season using 20mg MPA impregnated sponge with 500IU PMSG.