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Sheep Genetics Understanding MERINOSELECT ASBVs Factsheet

Australian Sheep Breeding Values (ASBVs) allow you to compare the genetic differences between rams. Rams contribute half of a lamb’s genetics. Rams have the largest impact on genetic progress, as they have more progeny throughout their lifetime.

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Internal parasites remain one of the costliest challenges for WA woolgrowers, but the "rules" of engagement are shifting. Evidence shows barber’s pole worm egg counts are now remaining above risk thresholds year-round in regions previously considered low-risk. This article breaks down the integrated worm management pillars—monitoring, nutrition, grazing, genetics, strategic drenching and vaccinating—required to break the cycle of reinfection and protect your bottom line. Read more
Mastering Sheep Breeding Values and Selection Indexes
Getting started with ASBVs and Selection Indexes can help woolgrowers make faster, smarter breeding decisions and improve flock profitability. It’s not just about chasing numbers — understanding an animal’s genetic merit helps you select sheep that fit your system and drive profit. This article breaks down the basics, including how ASBVs work, what Selection Indexes do and practical steps stud and commercial breeders are taking to make these tools work for you. Read more
Making sense of ASBVs and Selection Indexes
Ram buying is a task that is often only carried out once a year, so it is important that you are making well-informed selection decisions. With this year’s ram selling season now underway, now is a good time to brush up on what you need to think about to get the most out of your selection decisions. Read more