Practical Unit 8 Culling of livestock and poultry.pptx

Culling of livestock and poultry

1. CULLING OF LIVESTOCK Dr. P. Ravikanth Reddy MVSc , PhD Guest Faculty KBR College of Agriculture and Horticulture Acharya NG Ranga Agricultural University Dr. YSR Horticulture University

2. REASONS Poor production Poor reproduction Poor growth Breeding irregularities Incurable illness Genetic defects – Supernumerary teat , Loose horns Positive for serious infections ( Example ? )

3. Milk production – If less than average yield of the herd Age – Very old animals (More than 9 years old ) Surplus stock – Surplus males Calves – With congenital defects ( Eg :- Blindness) Dairy characteristics – Frame (15%), Dairy character (20%), Body capacity (10%), Feet and Leg (15%), Udder (40%).

4. CULLING OF POULTRY

5. REASONS Bad layers Poor production Poor reproduction Poor growth Incurable illness Genetic defects Hens and Roosters at 30 weeks of age .

6. Characters to distinguish good and poor layer 1) Physical condition of the layer 2) Molting pattern 3) Depigmentation

7. Physical condition Comb – Wattles - Eye – Vent – Keel and Pubic bones – Between pubic bones – 3 fingers space Abdomen - Skin -

8. Molting in hen Good layers are late and fast molters Molting

9. Bleaching in hen

10. CULLING OF SHEEP

11. REASONS Poor production Poor reproduction Poor growth Breeding irregularities Incurable illness Genetic defects Positive for serious infections ( Example ? ) Aged – Above 5 – 6 years . Testicular, Leg, and other abnormalities.