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The article discusses a study which assessed the physico morphological attributes of good and poor quality semen in mithum bull for future sperm preservations protocols in mithum bull. Topics discussed include the significantly higher mass activity and individual motility in good quality than poor quality ejaculates indicating that good quality sperm has higher structural stability than poor quality sperm and that good quality sperm has higher functional sperm structures to move faster.

The article focuses on a study of the effect of substitution of cattle seminal plasma with that of mithun bulls on seminal parameters. Topics discussed include selection of mithun bulls/collection of semen from the animals, collection of cattle bull seminal plasma, and classification of 5 seminal plasma groups. Analysis of data and results in terms which include individual motility, livability and acrosomal integrity are discussed.

In domestic species, spontaneous erection and penile movements or manipulation occur in an awake state, the behaviour is commonly known as masturbation. Six mithun bulls were selected, of which, three from Mizoram and three from Manipur strain. These strains were observed over a period of 12 months. This behaviuor were observed from 1800 to 800 hrs and especially in winter and spring season. The parameters studied were duration of erection, frequency of movements of penis, time of sexual erection and masturbation. Seminal parameters such as volume, mass activity, progressive motility, live sperm, concentration, abnormality, acrosomal integrity and HOST were studied, which were collected by massage method. Other parameters such as success rate, protrusion time, length of penis and ejaculation time were also studied. The seminal parameters were showed that there was no significant difference between the affected and unaffected animal. But the unaffected animals were non-significantly higher in seminal parameter than affected animals. [ABSTRACT FROM AUTHOR]