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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
REASONS
๏ƒผ Poor production
๏ƒผ Poor reproduction
๏ƒผ Poor growth
๏ƒผ Breeding irregularities
๏ƒผ Incurable illness
๏ƒผ Genetic defects โ€“ Supernumerary teat, Loose horns
๏ƒผ Positive for serious infections (Example ?)
๏ƒผ Milk production โ€“ If less than average yield of the herd
๏ƒผ Age โ€“ Very old animals (More than 9 years old)
๏ƒผ Surplus stock โ€“ Surplus males
๏ƒผ Calves โ€“ With congenital defects (Eg:- Blindness)
๏ƒผ Dairy characteristics โ€“ Frame (15%), Dairy character (20%), Body
capacity (10%), Feet and Leg (15%), Udder (40%).
CULLING OF
POULTRY
REASONS
๏ƒผ Bad layers
๏ƒผ Poor production
๏ƒผ Poor reproduction
๏ƒผ Poor growth
๏ƒผ Incurable illness
๏ƒผ Genetic defects
๏ƒผ Hens and Roosters at 30 weeks of age.
Characters to distinguish good and poor layer
๏ƒผ 1) Physical condition of the layer
๏ƒผ 2) Molting pattern
๏ƒผ 3) Depigmentation
Physical condition
๏ƒผ Comb โ€“
๏ƒผ Wattles -
๏ƒผ Eye โ€“
๏ƒผ Vent โ€“
๏ƒผ Keel and Pubic bones โ€“
๏ƒผ Between pubic bones โ€“ 3 fingers space
๏ƒผ Abdomen -
๏ƒผ Skin -
Molting in hen
Good layers are late and fast
molters
Molting
Bleaching in hen
CULLING OF
SHEEP
REASONS
๏ƒผ Poor production
๏ƒผ Poor reproduction
๏ƒผ Poor growth
๏ƒผ Breeding irregularities
๏ƒผ Incurable illness
๏ƒผ Genetic defects
๏ƒผ Positive for serious infections (Example ?)
๏ƒผ Aged โ€“ Above 5 โ€“ 6 years.
๏ƒผ Testicular, Leg, and other abnormalities.

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  • 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 ๏ƒผ Poor production ๏ƒผ Poor reproduction ๏ƒผ Poor growth ๏ƒผ Breeding irregularities ๏ƒผ Incurable illness ๏ƒผ Genetic defects โ€“ Supernumerary teat, Loose horns ๏ƒผ Positive for serious infections (Example ?)
  • 3. ๏ƒผ Milk production โ€“ If less than average yield of the herd ๏ƒผ Age โ€“ Very old animals (More than 9 years old) ๏ƒผ Surplus stock โ€“ Surplus males ๏ƒผ Calves โ€“ With congenital defects (Eg:- Blindness) ๏ƒผ Dairy characteristics โ€“ Frame (15%), Dairy character (20%), Body capacity (10%), Feet and Leg (15%), Udder (40%).
  • 5. REASONS ๏ƒผ Bad layers ๏ƒผ Poor production ๏ƒผ Poor reproduction ๏ƒผ Poor growth ๏ƒผ Incurable illness ๏ƒผ Genetic defects ๏ƒผ Hens and Roosters at 30 weeks of age.
  • 6. Characters to distinguish good and poor layer ๏ƒผ 1) Physical condition of the layer ๏ƒผ 2) Molting pattern ๏ƒผ 3) Depigmentation
  • 7. Physical condition ๏ƒผ Comb โ€“ ๏ƒผ Wattles - ๏ƒผ Eye โ€“ ๏ƒผ Vent โ€“ ๏ƒผ Keel and Pubic bones โ€“ ๏ƒผ Between pubic bones โ€“ 3 fingers space ๏ƒผ Abdomen - ๏ƒผ Skin -
  • 8. Molting in hen Good layers are late and fast molters Molting
  • 10.
  • 11.
  • 12.
  • 14. REASONS ๏ƒผ Poor production ๏ƒผ Poor reproduction ๏ƒผ Poor growth ๏ƒผ Breeding irregularities ๏ƒผ Incurable illness ๏ƒผ Genetic defects ๏ƒผ Positive for serious infections (Example ?) ๏ƒผ Aged โ€“ Above 5 โ€“ 6 years. ๏ƒผ Testicular, Leg, and other abnormalities.