The efficacy of controlled internal drug release (CIDR) in synchronizing the follicular wave in dromedary camels (Camelus dromedarius) during the breeding season

Theriogenology
Ayman Abdel-Aziz Swelum, Abdullah Nasser Alowaimer

Abstract

The present study aimed to evaluate the efficacy of controlled internal drug release (CIDR) to synchronize the follicular wave in dromedary camels (Camelus dromedarius) during the breeding season through ovarian monitoring, evaluating sexual receptivity, and measuring progesterone (P4) and estradiol (E2) levels during and after CIDR treatment. Sixteen camels received a new CIDR containing 1.9 g of P4 for 14 days. Ultrasound ovarian monitoring was performed on the day of insertion and every 3 days until the CIDR was withdrawn. Ultrasound examinations were continued day in day out after the CIDR was withdrawn for 10 days. According to the ultrasound examinations, the percentages of camels in the breeding (follicles: 12-18 mm) and nonbreeding phases were calculated. Blood samples were collected day after day during the experimental period (24 days) from the day that the CIDR was inserted. The serum P4 and E2 concentrations were analyzed using ELISA kits. The sexual receptivity of the camels was tested daily during the course of the experiment. The results revealed that 2 and 4 days after the CIDR was withdrawn, the percentage of camels in the breeding phase (68.75% and 75.00%, respectively) was significantly (P < 0.05) higher than...Continue Reading

References

Dec 16, 1978·The Veterinary Record·B E Musa, M E Abusineina
Feb 1, 1992·The Journal of Clinical Endocrinology and Metabolism·S JuddG White
Jul 1, 1994·Journal of Reproduction and Fertility·J A SkidmoreR B Heap
Jun 8, 2002·Reproduction, Fertility, and Development·Julian A SkidmoreW R Allen
Oct 7, 2008·Animal Reproduction Science·J A SkidmoreM Billah
Oct 5, 2010·Animal Reproduction Science·Julian A Skidmore

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Citations

Mar 2, 2016·Theriogenology·B PadalinoK A El-Bahrawy

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