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Black Angus crossed with White Shorthorn
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<blockquote data-quote="turning grass into beef" data-source="post: 635048" data-attributes="member: 5195"><p>For starters, if you look closely at some shorthorns that look white and are registered as white you will see a few red hairs around their ears or around their muzzles. Thus their genotype is roan. That is why, in practice, it is possible to get a red calf if you cross a phenotypic white (genotypic roan) with a red shorthorn. In theory it is impossible to get a red calf if you cross a genotypic white shorthorn with a genotypic red shorthorn. You should always get a roan calf from this mating.</p><p>If you have purebred black angus cows and you cross them with a genotypic white shorthorn bull, <strong><u>IN THEORY</u></strong> you should get a blue roan calf. If you have crossbred black angus cows and a white shorthorn bull with red hairs around its ears or muzzle, then all bets are off. You could get blue roans, blacks, black with white markings, reds, etc. Remember in all of this that the term blue roan itself can mean a wide range of color. Blue roan can be anywhere from almost black with a few white hairs intermingled, or it can be an extremely light blue roan, or anywhere in between.</p><p>2 years ago we had about 50 black angus cross yearling heifers out with our shorthorn cross yearling heifers. About 5 were BWF or BBF, the rest were straight black. If I remember right we had 2 white bulls, 2 roan bulls and 1 red with white marks bull out with them. The calves from these heifers were about 40% blue roan. We also had a few red roans and a few RBF, so some of the heifers had to have the recessive red gene.</p></blockquote><p></p>
[QUOTE="turning grass into beef, post: 635048, member: 5195"] For starters, if you look closely at some shorthorns that look white and are registered as white you will see a few red hairs around their ears or around their muzzles. Thus their genotype is roan. That is why, in practice, it is possible to get a red calf if you cross a phenotypic white (genotypic roan) with a red shorthorn. In theory it is impossible to get a red calf if you cross a genotypic white shorthorn with a genotypic red shorthorn. You should always get a roan calf from this mating. If you have purebred black angus cows and you cross them with a genotypic white shorthorn bull, [b][u]IN THEORY[/u][/b] you should get a blue roan calf. If you have crossbred black angus cows and a white shorthorn bull with red hairs around its ears or muzzle, then all bets are off. You could get blue roans, blacks, black with white markings, reds, etc. Remember in all of this that the term blue roan itself can mean a wide range of color. Blue roan can be anywhere from almost black with a few white hairs intermingled, or it can be an extremely light blue roan, or anywhere in between. 2 years ago we had about 50 black angus cross yearling heifers out with our shorthorn cross yearling heifers. About 5 were BWF or BBF, the rest were straight black. If I remember right we had 2 white bulls, 2 roan bulls and 1 red with white marks bull out with them. The calves from these heifers were about 40% blue roan. We also had a few red roans and a few RBF, so some of the heifers had to have the recessive red gene. [/QUOTE]
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