Charles Sturt University
Graham Centre for Agricultural Innovation

Marnie Hodge

 Marnie Hodge

Bachelor of Animal Science (Honours)

Factors affecting variability of ovine semen quality, and its impact on ovine production and reproduction

Historically, Australian livestock industry producers have selected animals with a focus on performance traits specific to their breeding objectives. Selection pressures for production traits are generally highly heritable and often indirectly result in a decrease in livestock fertility. Fertility traits are also generally more difficult to select for based on phenotype, as they are expressed later in an animal’s life. Reduced reproductive efficiency in sheep results in reduced number of offspring in any given generation, and a reduction in genetic gain associated with genetic improvement. This causes significant economic losses to the Australian livestock industry.

My study aims to objectively phenotype a range of ovine sperm-related traits, and evaluate the relationship between these traits and ovine production and reproduction on farm.

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Dr Sameer Pant and Dr Cyril Stephens

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Apiam Animal Health

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