I have been eating organic chicken and using coconut oil and coconut milk and then lots of rice (rice noodles, rice cakes, ...I make little pancakes out of everything and fry them in coconut oil, yummy!.
Cows give birth any age, since a cow is a female bovine that has already had a calf or two. Heifers, on the other hand, give birth when they're ~24 months of age. Since the gestation period is around 9 months or more (by only a few days), a heifer is able to get bred at around 15 months of age.
There's a 50% chance that a cow will give birth to a bull calf. Same with heifers. Therefore the ratio is 1:1 that a cow will be mother to a bull (bull calf) or a future cow (heifer calf) There's a 50% chance that a cow will give birth to a bull calf. Same with heifers. Therefore the ratio is 1:1 that a cow will be mother to a bull (bull calf) or a future cow (heifer calf).