We have been continuously getting this detached heads with all dead spermatozoa in a particular ram. Can anybody please suggest the causes and treatment for this condition.
i recommend you to read this paper https://www.dairyknowledge.in/sites/default/files/abnormal_detached_heads.pdf
And in order to remedy this issue, you must take into account several factors, namely the rate of sperm collection and the diet of the rams, as well as taking into account if the rams are under stress (thermal or food)) or not.
When individually evaluating fertility, you must consider many characteristics that can affect sperm individual production. I recommend the following readings:
- Chenoweth, P. J. (2005). Genetic sperm defects. Theriogenology, 64(3), 457–468.
- Enciso, M., Cisale, H., Johnston, S. D., Sarasa, J., Fernández, J. L., & Gosálvez, J. (2011). Major morphological sperm abnormalities in the bull are related to sperm DNA damage. Theriogenology, 76(1), 23–32.
It can be caused by staining or fixation technique, it should be check for this aspect.Because 100 percent detached head and zero motility are so strange… Further, i can recommend to check carefully the extender
Dear Sahu, it seems that it is caused by inproper manuplation of semen handling such as contamination ( particular for zero motility) of preputial contain and hard treatment of laboratory test procedures…
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