Correct option is D
Osteoporosis causes fragile bones and stunted growth in calves.
Main causes: Calcium, phosphorus, and vitamin D deficiency.
Symptoms: Lameness, fractures, and skeletal deformities.
Prevention: Balanced diet with sufficient minerals and vitamins.
Thilorcosis: A parasitic disease caused by Thilorchis spp., affecting the intestines of young calves, leading to diarrhea and weight loss.
Mastitis: Inflammation of the mammary glands, mainly affecting lactating cows.
Acidosis: A digestive disorder caused by excess carbohydrate intake, mainly affecting adult cattle and sheep.