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

13. CULLING OF
SHEEP

14. 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.