Have alot of first cross jersey holstein excellent animal was going to start breeding these to kiwi cross say f12 j4 would there be much variation in calf size would a certain percentage be like useing a jersey bull or would i be better just using recipricol crossing iv tried a small number of norweigan swedish red but there a bit to big of a cow for me for grazing and i dont want a herd of all different types of cows.
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