The most common diseases and causes of fertility issues in sheep are Ovine Brucellosis, Campylobacteriosis, Toxoplasmosis, Pestivirus, malnutrition, systemic diseases and toxicities, just to name a few.
To date, several producers have reported a reduction in pregnancy scanning rates, however ewes scanned in lamb are still returning good multiple birth rates.
Most flocks affected were joined in January to February and Ovine Brucellosis does not appear to be an issue. In general, the ewes have been in good body condition score.
Animal Biosecurity and Welfare Team Leader, Sophie Hemley does not want landholders to be alarmed, however does encourage them to contact their local District Veterinarian to discuss their flock’s health.
“We always want to hear from landholders about what is happening on their properties and to their livestock, it allows us not only to provide assistance but to also identify trends and patterns across the region,” Sophie said.
“We’ve had several reports now of infertility in sheep so anyone who has any concerns, or even those that don’t have concerns but want to have discussion, you should get in touch with us.
“Details such as livestock origin, age, nutrition, joining dates and period, number/age/origin of rams used, previous scanning or lambing rates and knowledge of previous disease are extremely useful and might already tell us half the story.
“After the initial conversation, we’ll look to plan a visit to the property to assess the livestock and environment, and if possible, we would perform a clinical exam on all affected animals (or a representative number) and some unaffected animals as well.
“To achieve a diagnosis, sample collection for submission to the lab is required in most cases.”
If you are concerned about your flock’s fertility, please contact your local District Vet:
Media: Charlie Whiteley | charlie.whiteley@lls.nsw.gov.au | 0428 679 974
