PRINCIPLES AND PRACTICES
OF
ANIMAL BREEDING
Course outline
Introduction/ Definition
History of animal breeding
History of animal breeding
History of animal breeding
History of animal breeding
Animal breeding in nepal
Animal breeding in nepal
Importance of animal breeding
Traits of economic importance
cattle
Status of indigenous cattle in nepal
Siri
Achhami (Sano/Naumuthe Gai)
Lulu (Kirkho)
Yak/nak
Pahadi
Khaila
terai
buffalo
Status of indigenous Buffalo in nepal
lime
Parkote
gaddi
Terai
Goat
Status of indigenous goat in nepal
Chyangra
Sinhal
Khari
Terai
Sheep
Status of indigenous Sheep in nepal
Lampuchchhre
Kage
Baruwal
Bhyanglung
pig
Status of indigenous Sheep in nepal
Chwanche
Hurrah
Bampudke
bANDEL
Pakhribas black
Dharane Kalo
Poultry
Status of indigenous Sheep in nepal
Sakini
Ghanti Khuile
Pwankh Ulte
Importance of AnGR conservation
Importance of AnGR conservation
Importance of AnGR conservation
Methods of AnGR conservation
INTRODUCTION
Types of variation
Crossing over
mutation
Chromosomal aberration
Polyploidy/aneuploidy
heridity
environment
Heridity and environment interaction
Phenotypic expression of gene
Additive gene action
Dominance
Co-dominance
Incomplete dominance
Over Dominance
EPISTASIS
Transgressive segregation
Other Gene Actions
Multiple alleles
Linked alleles
SEX LINKED GENES
X
Y
X X X
Y
X X X X X X X X
Mother Father
Boy child
Girl child
Sex limited genes
Sex influenced genes
Variance ()
Heritability (h)
Heritability (h)
Importance of heritability
Repeatability (r)
Repeatability (r)
Importance of repeatability
introduction
Types of Selection
directional Selection
Stabilizing Selection
Disruptive/diversifying Selection
Types of Selection
Single trait Selection
Selection differential (Sd)
Generation interval (I)
Most probable producing ability (MPPA)
Types of Selection
Tandem method
Independent culling method
Selection index method
Selection index method
Types of Selection
Individual Selection
Individual Selection : Pros and Cons
pedigree Selection
Pedigree selection : Pros and Cons
Progeny test
Progeny Testing : Pros and Cons
Collateral Relatives Selection
Collateral Relatives Selection: Pros and Cons
Selection for different gene actions
Factors affecting selection progress
Mating system
Random mating system
Phenotypic nonrandommating
Inbreeding
Inbreeding coefficient
Inbreeding Depression
Line crossing
Out crossing
Grading up
Species hybridization
Cross breeding
Assignment
Nucleus Breeding system
.

Animal Breeding.pptx