Sardar Krushinagar Dantiwada Agricultural Uiversity 2011 Bachelor of Veterinary Science & Animal-Husbandary Annual Board Practical - university paper

Second Annual Board Practical exam

AGB-211 (Old VCI) Marks: 25
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Q. 1. In Kankrej breed of cattle, there were 3 sires every mated to various number of
dams producing 1 calf every. Birth weights of calves were recorded in kg as
provided beneath. compute heritability of birth weights by paternal half sib correlation
method and interpret the outcome. (5.0)

Sire A Sire B Sire C
15 18 16
16 20 18
17 18 -
- 16 -

Q.2. compute the Environmental and genetic correlations ranging from birth weight (X) and
body length (Y) from the info provided below, considering K = 2.89. (5.0)

Source of variation MSSx MSSy MSCPxy
ranging from Sire 0.5017 3.841 1.92
Within Sire 2.0 75.0 11.7

Q. 3. Rank the Kankrej cows on the basis of their MPPA values. Considering the
repeatability value as 0.6 and herd avg. as 4900 kg. (5.0)

Cows Lact. I Lact. II Lact. III
A 4900 5300 5200
B 5200 5350 5400
C 5400 5000 -

Q. 4. compute the sire indices of sire A and B from info provided beneath by
Krishnan's index method and Equiparental method. Herd avg. is 3600 kg.(3.0)

Sires Daughter's MY Dam's MY Regression (b) of daughter on dam
A 2600 3150 0.18
B 3500 3620 0.23

Q. 5. A. Viva (5.0)

B. Practical record (2.0)

Earning:   Approval pending.