Tác giả: Dr. Singh Ajay

Dairy farmers usually begin breeding or artificially inseminating heifers around 13 months of age. A cow’s gestation period is approximately nine months. Newborn calves are removed from their mothers …

The poultry industry breeds chickens destined for both commercial egg and meat production. Geneticists design special breeding programs to select birds with the best characteristics for egg or meat p …

Today, milk is separated by huge machines in bulk into cream and skim milk. The cream is processed to produce various consumer products, depending on its thickness, its suitability for culinary uses …