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Time course imaging of two maize inbreds and their F1 hybrid (middle) exhibiting heterosis. Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents
They are medium-sized and calves grow into lean-carcass cattle, however its beef quality is inferior to other specialised beef breeds. Upon maturity, the Brahman cows have good milk production and a maternal nature, and demonstrate significant hybrid vigour and hence, used in cross breeding programs to develop the stabilised tropical crossbreed ...
The masking effect of outcrossing is known as genetic complementation, [3] an effect also recognized as hybrid vigor or heterosis. Once outcrossing is established in a lineage of flowering plants due to the benefit of genetic complementation, subsequent switching to inbreeding becomes disadvantageous because it allows expression of the ...
Within the American beef cattle industry, the older term beef (plural beeves) is still used to refer to an animal of either sex. Some Australian, Canadian, New Zealand and British people use the term beast. [11] Cattle bred specifically for milk production are called milking or dairy cattle; [1] a cow kept to provide milk for one family may be ...
The Black Baldy is reared for beef. [3]: 256 Cows may be mated to a bull of a European beef breed, to produce a heavier, better-muscled and faster-growing calf. [2]: 190 In Britain and Ireland a similarly-marked cross-breed, the Black Hereford, results from crossing Hereford bulls on predominantly black-coloured dairy cows. [citation needed]
Beefmaster is a breed of beef cattle that was developed in the early 1930s by Tom Lasater (the breed founder), [1] from a systematic crossing of Hereford cows and Shorthorn cows with Brahman bulls. The exact mixture of the foundation cattle is unknown, but is thought to be about 25% Hereford, 25% Milking Shorthorn and 50% Brahman.
Beefalo constitutes a hybrid offspring of domestic cattle (Bos taurus), usually a male in managed breeding programs, and the American bison (Bison bison), usually a female in managed breeding programs. [1] [2] The breed was created to combine the characteristics of both animals for beef production.
Younger cattle (under 42 months of age) tend to be graded as Prime, Choice, Select or Standard, while older cattle are more likely to be graded Commercial, Utility, Cutter, or Canner. These latter grades of beef are used for ground products rather than for consumer sale or food service. [3] Inspected carcasses tagged by the USDA