SELECTION CRITERIA-progeny selection

Question 0

what does Simple Daughter Average Index not take into account?

Answer 0

production level of mates of bull(i.e. dams of daughters)

Question 1

_______ purposed simple daughter average index

Answer 1

edwards

Question 2

equiparent index is also known as ________ or _______or ________index

Answer 2

intermediate
yapp’s
mount hope

Question 3

__________ purposed Equi-parent or Intermediate index

Answer 3

Hansson

Question 4

which index is simplest index?

Answer 4

Simple Daughter Average Index

Question 5

Simple Daughter Average Index FORMULA

Answer 5

I=D

D is average if all daughters of sire under test

Question 6

Equi-parent/Intermediate index FORMULA

Answer 6

I=2D-M
(D is average of all Daughters of sire under test)
(M is average of Mates of sire under test)

Question 7

Corrected Daughter Average Index was purposed by _________

Answer 7

Krishan

Question 8

__________index is superior than SDAI & equiparent/intermediate index

Answer 8

Corrected Daughter Average index

Question 9

Corrected Daughter Average index FORMULA

Answer 9

I=D-b(M-H)

(D is average of all Daughters of sire under test)
(b=0.5h2 , intra-sire regression of daughters on dam)
(M is average of Mates of sire under test)
(H=herd average)

Question 10

contemporary daughter average index is purposed by __________

Answer 10

Sunderasan

Question 11

basis of contemporary daughter average index

Answer 11

records of daughter of sire are compared with the daughters of all other sires in same herd calved in same month or +- 2 months

Question 12

corrected contemporary daughter average index was purposed by ____________

Answer 12

suderasan

Question 13

corrected contemporary daughter average index is also known as ____________ index

Answer 13

Dairy Search

Question 14

the sire constants are obtained by _________ techniques

Answer 14

least square

Question 15

maximum likelihood method was improved by a method known as ________________

Answer 15

restricted maximum likelihood(REML)

Question 16

restricted maximum likelihood(REML) is also known as ____________

Answer 16

marginal maximum likelihood

Question 17

expand term BLUP

Answer 17

Best Linear Unbiased Prediction method

Question 18

Best Linear Unbiased Prediction method was developed by __________

Answer 18

Henderson

Question 19

which method is more powerful than all the conventional selection index methods?

Answer 19

Best Linear Unbiased Prediction method(BLUP)

Question 20

name any two methods used for evaluation of sires used in more than one herd?

Answer 20

1. Stable-Mate Daughter Average index

2. Corrected Stable-Mate Daughter Average index

Question 21

define “progeny testing”

Answer 21

th selection criteria for evaluating an individual based on his progeny performance

Question 22

progeny testing is also known as ________

Answer 22

progeny selection

Question 23

breeding value of the parent is ______ the _____________ of the progenies from the population mean

Answer 23

twice the mean deviation

Question 24

name the factors which cause great deviation from true BV of a parent?how can the effect of these 2 factors balanced out?

Answer 24

1. change at segregation 2. enviromental factors estimating BV based on many progenies

Question 25

name the 3 types of traits for which INDIVIDUAL SELECTION is not possible

Answer 25

1. T of low heritiblity 2. sex limited T 3. T expressed after death of individual

Question 26

pedigree selection is effective for T of _____ heritiblity

Answer 26

HIGH

Question 27

how many males should be PROGENY TESTED for each required progeny tested sire?

Answer 27

4-5 males

Question 28

to run PT program effectively, it is required to get ______ inseminations or ____ pregnancies from each bull to get about _____ daughters

Answer 28

100 50 10

Question 29

how is BV of bull based on its progeny performance estimated?

Answer 29

multiplying the regression of BV of parent on the phenotypic perfomance of its progeny with the selection differential of progeny of that sire from mean of contemporaries

Question 30

formula of BV based on PT

Answer 30

b=rnh2/[1+(n-1)t]

Question 31

what is "acuracy of PT"

Answer 31

correlation of genotype of parent with average phenotype of its progeny

Question 32

acuracy of selection based on one progeny is _h

Answer 32

0.5

Question 33

acuracy of selection based on one progeny is same as that based on ________ or ________

Answer 33

one parent | one full sib

Question 34

acuracy of PT ________ with increase in number of progeny

Answer 34

increases

Question 35

the acurracy of PT with ______ progeny gives as high acurracy as that of INDIVIDUAL SELECTION

Answer 35

5

Question 36

the acurracy of PT will be higher than the acurracy of INDIVIDUAL SELECTION if the no. of progeny will exceed ______

Answer 36

5

Question 37

of individual selection and PT, which is more accurate for traits of lower heritability?

Answer 37

PROGENY TESTING is is more acurate

Question 38

PT is _______ effective as selection based on HALF SIB families

Answer 38

2 times

Question 39

PT is _______ effective as selection based on FAMILY SIB families

Answer 39

1.4 times

Question 40

presence of ___ effects reduces accuracy of PT

Answer 40

C

Question 41

what is principal advantage of PT

Answer 41

increased selection intensity

Question 42

PT is ______ form of family selection

Answer 42

modified

Question 43

_________ is modified form of family selection

Answer 43

PROGENY TESTING

Question 44

what is "sire index"

Answer 44

it is the index of genetic worth of sire

Question 45

what is C(s)

Answer 45

enviromentally determined correlation which exists between daughters of a bull

Question 46

C(s) for seasonal differences

Answer 46

C(s)=t=0.25*heritability

Question 47

C(s) for cows belonging to different herds

Answer 47

C(s)=heritability=4t