
_______ is an exotic breed of cow.
A.. Gir
B. Sindhi
C. Sahiwal
D. Jersy
Answer
561.9k+ views
Hint:-The literal meaning of the adjective exotic is “to be non-native” or “introduced into a region from a foreign region/having foreign traits”. Breed refers to a bracket of domesticated organisms within the same species. They are clumped together as “breeds” due to their uniform behavioural, physical and genetic traits.
Complete Answer:-The exotic breeds are those belonging to abroad while indigenous cattle are those that are local. The reason exotic cattle breeds are brought to a region is to carry out crossbreeding between the exotic and indigenous organisms. The exotic breeds are mostly from developed regions which is why the method of crossbreeding is largely done using these in developing or under-developed countries.
This improves the quality of the produce and yield of the offspring, also known as “hybrids” or “outcross”, specifically to be superior to the parents.
Some of the desirable traits that breeders seek in the offspring are:
- Growth Rate
- Fertility and reproductive efficiency
- Good milk and meat yield
- Early maturity
- High birth weight
- Good heat tolerance
- High immunity to disease
Among the given options, the geographical origin for Sindhi, Sahiwal and Gir cattle are in the lands of India and Pakistan. The only exotic breed is Jersy which makes option D. Jersy the correct answer.
Note:- Brown Swiss, Ayrshire, Holstein Friesian, Guernsey and Red Dane are some other exotic breeds that exist. Also, to cross-breeding, there are other outbreeding methods (i.e., the mating of unrelated organisms), such as grading up and species hybridisation which elevates the quality of gene pool over generations.
Complete Answer:-The exotic breeds are those belonging to abroad while indigenous cattle are those that are local. The reason exotic cattle breeds are brought to a region is to carry out crossbreeding between the exotic and indigenous organisms. The exotic breeds are mostly from developed regions which is why the method of crossbreeding is largely done using these in developing or under-developed countries.
This improves the quality of the produce and yield of the offspring, also known as “hybrids” or “outcross”, specifically to be superior to the parents.
Some of the desirable traits that breeders seek in the offspring are:
- Growth Rate
- Fertility and reproductive efficiency
- Good milk and meat yield
- Early maturity
- High birth weight
- Good heat tolerance
- High immunity to disease
Among the given options, the geographical origin for Sindhi, Sahiwal and Gir cattle are in the lands of India and Pakistan. The only exotic breed is Jersy which makes option D. Jersy the correct answer.
Note:- Brown Swiss, Ayrshire, Holstein Friesian, Guernsey and Red Dane are some other exotic breeds that exist. Also, to cross-breeding, there are other outbreeding methods (i.e., the mating of unrelated organisms), such as grading up and species hybridisation which elevates the quality of gene pool over generations.
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