Our Vision

In a cow/calf operation, depending on the age and weight of turnoff, between 60 and 80% of dry matter consumed by the herd in maintaining the cow herd. So when we look at beef production on an enterprise basis, it is a paradigm shift from looking at individual animal performance, to a per hectare approach.

These two approaches are fundamentally different. Our system is designed to produce an efficient cowherd who consumes variable feed quantity and quality through the year.  The young stock need feed quality and quantity to maintain an optimum growth path to meet sale targets.

Our Approach

The cow herd must be efficient: Efficient, functional, fertile cows. The moderate framed cow will rebreed quickly and calve without any fuss. We define high fertility by the Average Day of Calving*, ADC. All producers can set the herd up for life by joining cows and heifers for a maximum of 6 weeks, after culling empties and minimum culling of heifers.

*Average day of calving should be less than 20 days across the herd which leads to a compact calving in the first cycle. This results in females rebreeding more quickly in subsequent years. At Rennylea our average day of calving is Day 15.

Accessing Rennylea Genetics

Bull Sales are conducted at the sales complex at “Ellerslie Park”, Culcairn, twice a year in March and at the end of August. Roughly 250 bulls are marketed throughout Australia by auction, and another 250 through contract sale and private treaty. Rennylea also markets surplus females and genetic products in semen and embryos.