AHDS-242

AHDS-242: LIVESTOCK BREEDING AND NUTRITION

Credit: 2(1+1)

THEORY:

History and concept of animal breeding.Cell and cell division, spermatogenesis and oogenesis. Gene: Functions and role in animal genetics, gene actions, gene and genotypic frequencies, gene expression and mutation. Mendelian principles and Hardy Weinberg law.Chromosomes and its abnormalities.Laws of probabilities and animal breeding.Variations in economic traits of farm animals.Systems of breeding.Methods of selection and basis for selection.Quantitative and qualitative traits.Composition of plant and animal body.Classification of feeds and fodders.Important food ingredients and their functions in animal body.Digestive system, digestion and absorption of different nutrients in ruminants. Feed supplements and feed additives. Methods of measuring food values.Feeding standard & their principles.Concept in feed processing eg. Complete feed block, enrichment of low quality roughages and use of unconventional feed stuff.  Recent trends in animal feed technology.

PRACTICALS:

Study of animal cell structure.Estimation of gene and genotypic frequency.Estimation of heritability and repeatability.Estimation of genetic and phenotypic correlation by analysis of variance, co- variance.Estimation of most probable producing ability and breeding value of cow.Study of sire index.Estimation of regression coefficient.Estimation of genetic gain. Estimation of  heterosis.  Identification of feeds and fodders.Study of desirable characteristics of ration.Evaluation of nutritive value of various feeds and fodders. Study of nutritive values DCP,TDN,NR,SE and GE.  Nutrient requirement of different classes of animals. Principles of thumb rule. Computation of ration for different classes of livestock.Conservation of fodder viz. Silage making, Hay making, Chaffing of fodders.Studies on processing of low quality roughages.Study of azolla and hydroponics fodder production.

Practical (Experiments):

1) A) Study of animal cell structure

B) Estimation of gene and genotypic frequency

2) A) Estimation of heritability and repeatability

B) Estimation of genetic and phenotypic correlation by analysis of variance, co- variance

3) Estimation of most probable producing ability and breeding value of cow

4) Study of sire index

5) Estimation of regression coefficient

6) A) Estimation of genetic gain

B) Estimation of heterosis

7) Identification of feeds and fodders

8) Study of desirable characteristics of ration

9) Evaluation of nutritive value of various feeds and fodders

10) Study of nutritive values DCP,TDN,NR,SE and GE

11) Principles of thumb rule and nutrient requirement of different classes of animals

12) Computation of ration for different classes of livestock

13) Conservation of fodder A) Silage making, B) Hay making, C) Chaffing of fodders

14) Studies on processing of low quality roughages

15) Study of azolla and hydroponics fodder production

16) Visit to forage farms/ laboratory/veterinary dispensary