Search results
Results from the WOW.Com Content Network
Polled strains have been developed of many cattle breeds which were originally horned. This has usually been done by crossing with naturally polled breeds, most commonly Angus and Galloway cattle. For example, polled Jersey cattle originated in Ohio sometime prior to 1895. Two strains were developed, the first to appear being founded by crosses ...
They may be horned or polled, and homozygous (2 copy), or heterozygous (1 copy). [19] Fullbloods and Naturalean bulls are often crossed with traditional beef breeds like Black Angus or Hereford cattle because of substantial benefits in the crossbred results, including a higher protein meat that is lower in saturated fat, improved tenderness ...
To determine if an animal will be horned, polled (smooth-polled), or scurred (scurred-polled) is gene dependent. The editor above in the Definition and title section was really close but got side-tracked by introducing sheep into the picture. I am more experienced concerning horned versus polled cattle but some research will likely conclude the ...
The words homozygous, heterozygous, and hemizygous are used to describe the genotype of a diploid organism at a single locus on the DNA. Homozygous describes a genotype consisting of two identical alleles at a given locus, heterozygous describes a genotype consisting of two different alleles at a locus, hemizygous describes a genotype consisting of only a single copy of a particular gene in an ...
Polled Holsteins are cattle born without horns but only occur in a small portion of Holstein cattle. The Holstein breed can go through selective breeding to produce polled calves. Polled is a natural trait for Holsteins but have not been bred for specifically.
In Italy, the Piedmontese is a dual-purpose breed: the cattle are raised for their milk, which is used in the production of several traditional cheeses of the region, including Castelmagno, Bra, Raschera, and Toma Piemontese; [4] [5] and are also raised for meat, as beef from Piedmontese cattle is seen as a premium product.
Interbred F1 hybrids produce progeny that can be either heterozygous for each gene variant, homozygous for one gene variant, or homozygous for the other gene variant. When one of the variants has a large effect on a trait, for example the effect of myostatin variants on muscularity, larger phenotypic variation will occur among the progeny.
The parent Suffolk breed was also polled; Norfolk cattle had horns, but the gene for horns was bred out in the Red Poll breed. The original name for the breed, adopted in 1863, was Norfolk and Suffolk Red Polled cattle, and the first standard description was agreed upon in 1873, with the first herd book compiled in 1874.