Journal Paper

Paper Information

video

sound

Persian Version

View:

127

Download:

0

Cites:

Information Journal Paper

Title

EFFECTS OF OXYTOCIN AND PROSTAGLANDIN F2α HORMONES ON REPRODUCTIVE PERFORMANCE OF ARABIAN RAMS

Pages

 Start Page 35 | End Page 44

Abstract

 BACKGROUND: OXYTOCIN and prostaglandin F2a are effective on male reproductive function.OBJECTIVES: This experiment was carried out to evaluate the effects of OXYTOCIN and prostaglandin F2a injection on reproductive activity of ARABIAN RAMs.METHODS: In breeding season, twelve ARABIAN RAMs with the nearly same age (average 2.5 years old), weight (average 64 Kg) and similar feeding conditions were assigned as a completely randomized design into three treatments: 1- control (without hormone injection), 2- OXYTOCIN injection (7 IU, IV) and 3- PGF2a injection (4 mg dinoprost, IM). About 15 minutes after each injection, semen (with ejaculator) and blood samples were taken. Testicular circumference and height were measured. The time interval between the beginning of electrical stimulation to ejaculation was recorded. This experiment was repeated weekly for 4 weeks (16 observations for each treatment). The testosterone concentration in seminal and blood plasma was determined using radioimmunoassay.RESULTS: The testis dimensions were not affected by treatments. The time interval stimulation to ejaculation in hormonal treatments was higher than control (P<0.05). The Highest and lowest values of the semen volume, spermatozoa density, total numbers of spermatozoa and spermatozoa progressive motility were related to OXYTOCIN and control treatments, respectively (P<0.05). Furthermore, the amount of these parameters in prostaglandin treatment was less than the OXYTOCIN group (P<0.05). The percentage of live sperms in OXYTOCIN treatment was higher than others (P<0.05). Both of the hormones caused the higher spermatozoa morphological defects than control (P<0.05). There were no significant differences in blood and seminal plasma testosterone values among treatments.CONCLUSIONS: In general, the OXYTOCIN and prostaglandin F2a injection to ARABIAN RAM in breeding season, reduced the time interval stimulation to ejaculation and improved the most quantity and quality parameters of spermatozoa.

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

    Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops






    File Not Exists.