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Modification of Electro-Ejaculation Technique to Minimise Discomfort during Semen Collection in Bulls

Modification of Electro-Ejaculation Technique to Minimise Discomfort during Semen Collection in Bulls

Falah Baiee1,3, Wahid Haron1,*, Rosnina Yusoff1, Ariff Omar,2 Nurhusien Yimer1, Salman Hammadi1, Tarig Ahmedeltayeb1, Asmatullah Kaka4

1Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia
2Department of Veterinary Pre-Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia
3Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Kufa, Najaf, Iraq
4Department of Animal Reproduction, Faculty of Animal Husbandry and Veterinary Science, Sindh Agriculture University, Pakistan

*      Corresponding author: wahidh@upm.edu.my; 
wahidharon@gmail.com

ABSTRACT

The aim of this study was to reduce acute discomfortness experienced in bulls during semen collection by electro ejaculation method. The normal electro ejaculation method of semen collection (Method I) was compared to a modified method involving three stages of graduated electrical stimulation (Method II) in four crossbred bulls. The results showed that intensive muscle spasm, bull struggling and arc back were reduced (p ˂ 0.05), as well as the time of penile protrusion (p = 0.003) and semen emission (p = 0.084) were improved using Method II than Method I. However, the total time taken for semen collection was the same in both methods. Also, there were no significant differences in semen parameters such as sperm volume, motility, morphology, viability, and concentration. In conclusion, gradation of electrical stimulation into three stages (our modified Method II) could help to ease the collection of semen samples from bulls with minimum discomfort signs. Furthermore, the modified method is also recommended to use for other animals, in particular, the wild animals.
 

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Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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