The basic problem with livestock resources in India is:
1. a low number of cattle and poultry birds
2. a very high susceptibility to viral and fungal diseases
3. a productivity per unit
4. lack of grazing lands and agricultural institutes
In a dairy farm, milk yield in cattle is primarily dependent on:
1. Quality of the breed
2. Feeding of the cattle
3. Placing the cattle in right environment
4. Regular visits by vet to control any disease
The strain of Influenza virus A responsible for causing bird flu is:
1. H1N1
2. H2N3
3. H3N2
4. H5N1
The reduced biological fitness in a given population as a result of inbreeding, or breeding of related individuals is called as:
1. Inbreeding suppression
2. Inbreeding depression
3. Inbreeding regression
4. Inbreeding degeneration
The improved or increased function of any biological quality in a hybrid offspring is called as:
1. Heterosis
2. Heterozygote advantage
3. Consanguinity
4. Outbreeding depression
The case in which the heterozygous genotype has a higher relative fitness than either the homozygous dominant or homozygous recessive genotype is called as:
1. Heterosis
2. Heterozygote advantage
3. Consanguinity
4. Outbreeding depression
Identify the incorrect statement regarding Multiple Ovulation Embryo Transfer Technology (MOET):
1. FSH like hormone or PMSG [pregnant mare serum gonadotropin] are used to induce super-ovulation [6 – 8 eggs rather than one per cycle] and Prostaglandins are used to regulate the duration of cycle.
2. Fresh embryos can be stored at 37ºC for 6 - 8 hours without much harm but it is recommended that the embryos are inserted into the recipient cow or frozen as soon as possible. The embryos can be stored for ever in liquid nitrogen.
3. The animal is either mated with an elite bull or artificially inseminated and the fertilised eggs at 8–32 cells stages, are recovered non-surgically and transferred to genetic mothers.
4. The embryos are transferred to a recipient cow whose oestrous cycle is at the correct receptive stage.
Which of the following is not an advantage of artificial insemination in cattle?
1. Increased efficiency of bull usage
2. Increased genetic variability in the population
3. Increased potential for genetic selection
4. Reduced disease transmission
Hisardale is a new breed of:
1. Sheep developed by crossing Bikaneri ewes and Marino rams.
2. Sheep developed by crossing Bikaneri rams and Marino ewes.
3. Goat developed by crossing Bikaneri ewes and Marino rams.
4. Goat developed by crossing Bikaneri rams and Marino ewes.
Regarding out-breeding, the number of correct statements are:
I. Out-crossing is the practice of mating of animals within the same breed, but having no common ancestors on either side of their pedigree up to 4-6 generations.
II. Out-crossing is the best breeding method for animals that are below average in productivity in milk production, growth rate in beef cattle, etc.
III. A single outcross often helps to overcome inbreeding depression.
IV. In cross-breeding superior males of one breed are mated with superior females of another breed.
V. Cross-breeding allows the desirable qualities of two different breeds to be combined.
1. 2
2. 3
3. 4
4. 5