Important Definations Realted To Agriculture and Animal Husbandry

Important Agriculture

Important Definations

# Drought: Condition of soil moisture deficiency or water scarcity.

# Drought Avoidance: Ability of plants to maintain a favourable internal water balance under moisture stress.

# Drought Hardening: Improvement in drought tolerance ability of a genotype through various seed and seedling treatments.

# Drought Resistance: Ability of crop plants to grow, develop and reproduce normally under moisture deficit condition or survival of plants under water deficit conditions without injury. It is a sum of drought avoidance and drought tolerance.

5. Drought Tolerance: Ability of plants to withstand low tissue water content.

(Important Agriculture )

6. Hydroponics: Growing of plants in nutrient solution.

7. Lysimeter: Cemented micro plots of various sizes used for study of roots and salt tolerance.

8. Porometers: An instrument that is used for measuring stomatal aperture.

9. Psychrometer: An instrument which is used to measure tissue water potential in plants.

10. Salts Tolerance: Ability of plants to prevent, reduce or overcome the injurious effect of soluble salts present in the root zone.

(Important Agriculture )

#Hen: A matured female chicken generally above 20 weeks of age.

#Cock: A matured male chicken above 20 weeks of age.

#Pullet: A young female chicken from 9 to 20 weeks of age.

#Cockerel: A young male chicken from 5-8 months of age.

#Chick: A young male or female fowl below S weeks of age.

#Day-care chick: Hatched out chick is called as day-old-chick up to 24 hours.

(Important Agriculture )

#Grower: A young chick of 9th week of 20th week of age of either sex.

#Brood: A group of chicks of same age raised in one batch is called as a brood.

#Brooding: The process of rearing the young chick from day old stage to 4 to 6 weeks of age during which, heat is to be provided to keep them warm.

#Brooder: A device for providing artificial heat to the chicks.

#Broiler: They are the hybrid chicks having rapid growth and attaining about 1.5 kg weight during the period of 6 weeks of age. Sold for table purpose within 8 to 10 weeks period. They possess a very tender and delicious meat.

#Capon: It is a young male birds of which testicle are removed.

#Layer: An egg laying female chicken up to one year after starting the laying of eggs.

(Important Agriculture )

#Broody: A hen which has stopped laying eggs temporarily.

#Clutch: The number of eggs laid by a bird on consecutive days. A clutch of 3-4 eggs is preferred.

#Moulting: The process of shading old feathers and growth of new feather in their place moulting normally occurs once in a year.

#Culling: Removal of unwanted bird from the flock is known as culling e.g. old non-laying birds, sick birds and masculine hens are removed.

#Pause: It is the period between two clutches in which eggs are not laid by hen.

(Important Agriculture )

#Hen day production: This is arrived by dividing total eggs laid in the season by the average number of birds in the house.

#Hen housed average:
 This is arrived at by dividing the total number of eggs laid in the season by the number of birds originally placed in the house.  No deductions are made for any losses from the flocks.

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