breed to get black calves

[simcross]

I have some cross bred cows . Years ago I had some Santa Gertrudis cows have used simmental bulls for a while the cows I have used angus bulls last two generations. I kept my own heifers the cowws I have now still throw a choclate brown or a silver colored calf from an angus bull.

The question would using a homozygous black bull (lim.gelv, sim, ect ect)
produce black calves.

the quality of my cows are good, I was trying to get a even color in my calves

 

[stocky]

i would think that a black angus bull would give you the best chance of black calves. if you have red ancestry in the cows, you might think about a charlois bull to get consistent yellow calves since you arent getting the consistency you want. to me, if the cow has red in her genes, go with a charlois. any other color except white, go with a black angus bull to get black calves

 

[Jeanne - Simme Valley]

Your cows are carrying the diluter gene.
If a bull is black in color, he CANNOT pass on the grey/brown/silver/mousy color. He passes the black gene (if he is homo black) and the calf is black - but black may get diluted - thus the "off" colors - if the calves inherit a diluter gene from the dam.
This is true with Homo Black Simmental, Angus, Limo, etc.
Home black means the bull will only pass a black gene - and if the bull is black in appearance - than he cannot pass a diluter gene - it has to come from the cow.
If an animal if RED in color (dark red, light red, dun, yellow) you cannot tell if she is diluted or not. But the duns/yellows are usually diluted. Point is, red gened cows are not easily identified as to whether they carry the diluter (or two diluters) because a dark red cow may carry the diluter gene & it is just not being expressed. BUT, a black hided animal always expresses the diluter gene - being "off" color.
My guess is that you used a red diluted Simmental bull on your gerts, giving you cows that carry the diluter gene.