The effect of melatonin and bromocryptine administration on body weight and shedding fibre of Raeini goats

Mohit, Ardeshir; Salehi, Mahnaz; Khob Bakhat, Zeynab

doi:10.22059/jap.2015.54023

Document Type : Research Paper

Authors

¹ Assistant Professor, Department of Animal Science, Faculty of Agricultural, Guilan University, Rasht, Iran

² Instructor, Department of Animal Product, Animal Science Research Institute, Karaj, Alborz, Iran

³ Ph.D. Candidate, Department of Animal Science, Faculty of Agricultural, Guilan University, Rasht, Iran

https://doi.org/10.22059/jap.2015.54023

Abstract

The effect of melatonin and bromocryptine on body weight, fibre shedding and cashmere traits was investigated by using 24 Raeini female goats (2-3 years old) in four experimental groups: control (C); melatonin (MI) implant (18 mg at first and repeated after 40 days), bromocryptine (B) injection, (0.5 mg/kg BW per three days) melatonin and bromocryptine implant and injection (MIB). All goats were maintained under natural photoperiodic conditioned of short day photoperiod (8 h light and 18 h dark), for two months. Fibre was harvested by using wooden combs and each goat was combed four times at two week intervals, from 23^th February to 8^th March. Combed fibers were 23.3, 15.7, 17.0 and 21.3 percent for MI, B and MIB treated and C groups. Cashmere fiber diameter (CFD) for MI group (21.4 um) was higher than the other C, B and MIB groups 20.2, 19.9 and 19.8 um (P<0.01). The CV of CFD was significant and higher in C group compared with the other groups (P<0.05). These results suggest that melatonin and bromocryptine improve uniformity of cashmere diameter in Raeini female goats.

Keywords

20.1001.1.20096776.1394.17.1.10.2

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Journal of Animal Production, Print ISSN: 2008-6776., Online ISSN: 2382-994X

The effect of melatonin and bromocryptine administration on body weight and shedding fibre of Raeini goats

References

References

Volume 17, Issue 1 - Serial Number 1
Spring & Summer 2015
April 2015
Pages 95-105

The effect of melatonin and bromocryptine administration on body weight and shedding fibre of Raeini goats

References

References

Volume 17, Issue 1 - Serial Number 1Spring & Summer 2015April 2015Pages 95-105

Volume 17, Issue 1 - Serial Number 1
Spring & Summer 2015
April 2015
Pages 95-105