Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 Bachelor of Veterinary Science & Animal-Husbandary Semester End Practical - Question Paper

Semester End Practical exam
AGB – 211(Old VCI)
Marks: 25


Q. 1. Estimate the heritability for the egg weight by paternal half sib correlation method.
Interpret the outcome. (5.0)

Estimates Sire-1 Sire-2 Sire-3 Sire-4 Sire-5
No. of obs. / Sire 10 8 7 6 9
Sum of X (SX) 485 397 313 284 447
Sum of X2 (SX2) 23701 19805 14077 13598 22289

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

Source of variation Degree of freedom SSx SSy SCPxy
ranging from Sire 2 6.89 172.2 34.5
Within Sire 6 12 450 70

Q. 3. Rank the Kankrej cows on the basis of their MPPA values. Considering the
repeatability value as 0.4 and herd avg. as 4700 kg. (5.0)

Cows Lact. I Lact. II Lact. III
A 5600 5200 6200
B 5400 5700 -
C 3850 4100 4600

Q. 4. compute the sire indices of sire A and B from info provided beneath by
Krishnan's index method. Herd avg. is 3500 kg (3.0)

Sires Daughter's MY Dam's MY Regression (b) of daughter on dam
A 3000 4500 0.20
B 2500 3000 0.15

Q. 5. Viva (5.0)
Practical record (2.0)

Earning:   Approval pending.