Breeding Values are tools used for assessing the relative genetic worth of different animals in the same flock or herd. They are always expressed in terms like kilograms of liveweight or fleece weight, or microns of fibre diameter. They incorporate all the relevant genetic information about an animal, compressing it into a single, easily . . . → Read More: Breeding Values in Genetics of Cattle
Genetic gain has three components:
1. Heritability (h2).
This is the measure of how strongly a trait is inherited, which determines how much parental superiority is passed on to the next generation. For breeding calculations heritability is described mathematically on a scale from 0 to 1.0. Some important traits such as fertility have low . . . → Read More: Genetic Gain in Beef Cattle
In cow-calf production systems today, the longevity of brood cows has a substantial effect on herd economic performance. Producers can maximize longevity through wise breeding and management strategies.
With the current depressed market price for cull cows, and diminished demand for “surplus” brood cows, the need to maximize longevity of the cows . . . → Read More: Maximize Longevity in Beef Cattle
The following Breed society websites provide generic market-based breeding objectives and selection indexes that allow commercial breeders to search for bulls that fit within their target index specifications:
Angus – www.angusaustralia.com.au
Hereford – www.hereford.com.au
Poll Hereford - www.pollhereford.com.au
Shorthorn – www.shorthorn.com.au
Limousin – www.limousin.com.au
Charolais - www.charolais.com.au
Brahman – www.brahman.com.au
Murray Grey – www.murraygrey.com.au
. . . → Read More: Market-based breeding objectives for Beef Cattle
This tool will help and should assist you to avoid two common pitfalls when buying bulls:
1. Paying too much for the apparent ‘super bull’ when economically the second best bull is better value; and
2. Paying too much for the worst bull in the catalogue because he was ‘cheap’.
Use the index values . . . → Read More: Beef Bull earning capacity calculator
The BreedObject website is www.breedobject.com
Also consider looking at the http://bobj.une.edu.au site – a live version with the capacity for dollar index development online for immediate use. There is online interactivity with the breed databases that ensures use of the latest EBVs, and also EBV and standard dollar index display. The information . . . → Read More: BreedObject Software for Beef Cattle