FAST FACTS
Phase D bull testing is an objective way to measure the animals’ performance.
Using the data from these tests, farmers can perform selection to improve herd performance.
Improving the feed conversion rate of your herd results in higher profits.
Performance testing of a beef cattle herd entails the weighing of animals at certain ages to determine their genetic value. Data obtained through such tests provide farmers with an objective selection aid to identify the best-performing animals in their herds to be used as parents for the next generation. This improves the genetic merit of their herds. In a broader sense, the objective of performance testing is to improve the biological and economic efficiency of beef production of a particular herd, breed, and eventually the national herd.
Since the continuous selection of better cattle by all breeders ultimately leads to an improvement in the national herd, the Animal Improvement Institute at the Agricultural Research Council (ARC) runs the South African National Beef Cattle Improvement Scheme to formulate such tests, which are then conducted by the ARC and private test centres around the country.
Tests are available for five phases of the animal’s life, each adding an additional selection criterion to give the breeder a complete picture.
Phase A evaluates the cowherd, taking weaning weights of their calves into account to determine mothering abilities. Ease of calving (birth weight), fertility (age at first calving and inter-calving period) and cow efficiency are also evaluated.
Phase B looks at post-weaning weight gain to measure the adaptability and post-weaning growth of calves.
Denne historien er fra September 03, 2021-utgaven av Farmer's Weekly.
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Denne historien er fra September 03, 2021-utgaven av Farmer's Weekly.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
ARC names best dairy producers of the year
The Agricultural Research Council (ARC) recently announced the winners of the 2024 National Master Dairyman Awards at an event hosted by AgriExpo in Stellenbosch, Western Cape.
Lion breeders to give up bone stockpiles?
The Ministry of Forestry, Fisheries and the Environment issued an official notice in mid-November in which it called on lion breeders to voluntarily hand over their lion bone stockpiles to the state as soon as possible.
Thousands of British farmers march on parliament against inheritance tax
Thousands of UK farmers gathered in London, England, on 19 November to demand the government repeal a proposed inheritance tax on agricultural land, which they argued threatened the future of family-run farms (see page 4), Al Jazeera reported.
Avocado frittata with sundried tomatoes, feta and olives
This wholesome, vibrant frittata is perfect for brunch or a light supper. Recipe and photo: The South African Avocado Growers' Association.
Feed, hay, and other costs are up, so it's time to get creative
Breeders and riding schools need to explore innovative ways to generate income in order to ensure their survival, says Dr Mac.
How to make polystyrene seedling trays last longer
While thinking about how to prolong the lifespan of polystyrene seedling trays that are exposed to harsh sunlight, Bill Kerr began to wonder if a coat of paint might offer a solution.
Living the 'culture' in agriculture
Creation Wines has won numerous awards, was ranked fourth in the World’s Best Vineyards in 2023, and more recently won the V d’Or award for the Best Brand Experience. The owners, Carolyn and Jean-Claude Martin, spoke to Glenneis Kriel about how their winery became a top tourism destination.
Time to take a deep breath on the slopes of the Magaliesberg
Around 100km from both Johannesburg and Pretoria in Gauteng and a tad over 40km from Rustenburg in North West, Farmer’s Weekly found a fine retreat on a working farm where couples may kindle their romance.
African penguins could be extinct by 2035 how to save them
Protecting the critically endangered African penguin is good for the environment, other animal species, and the economy, say Lorien Pichegru and Dr Alistair McInnes of Nelson Mandela University, Katrin Ludynia of the University of Cape Town, and Peter Barham of the University of Bristol in the UK.
An urgent need to confront Nassella in SA
South American grass species from the genus Nassella were unwittingly introduced to South Africa over 120 years ago and continue to invade montane veld. As Mike Burgess writes, research-based action is required.
