Question:
Given below are two statements:
Statement (I): Vrindavani crossbred cattle has been evolved at CIRC, Meerut in collaboration with Military Farms of the country.
Statement (II): A low heritability is desired in breeding for the rapid progress.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Vrindavani crossbred cattle has been evolved at CIRC, Meerut in collaboration with Military Farms of the country.
Statement (II): A low heritability is desired in breeding for the rapid progress.
In light of the above statements, choose the most appropriate answer from the options given below.
Statement (I): Vrindavani crossbred cattle has been evolved at CIRC, Meerut in collaboration with Military Farms of the country.
Statement (II): A low heritability is desired in breeding for the rapid progress.
In light of the above statements, choose the most appropriate answer from the options given below.
Show Hint
- High heritability (\( h^2 > 0.4 \)): phenotypic selection is effective.
- Low heritability (\( h^2 < 0.2 \)): family selection or progeny testing is required.
- Low heritability (\( h^2 < 0.2 \)): family selection or progeny testing is required.
Updated On: Jul 21, 2026
- Both Statement (I) and Statement (II) are correct.
- Both Statement (I) and Statement (II) are incorrect.
- Statement (I) is correct but Statement (II) is incorrect.
- Statement (I) is incorrect but Statement (II) is correct.
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Evaluating dairy cattle development programs and understanding genetic parameters like heritability are essential for planning effective breeding strategies.
Detailed Explanation:
Let us analyze both statements:
Statement (I) describes the development of the "Vrindavani" cattle breed.
Vrindavani is a synthetic crossbred dairy breed developed at the Central Institute for Research on Cattle (CIRC), Meerut, in collaboration with the Military Farms Department.
The breed was developed by crossing exotic dairy breeds (Holstein-Friesian, Brown Swiss, and Jersey) with the indigenous Hariana breed, resulting in an exotic inheritance level of \( 50\% \text{ to } 75\% \).
This makes Statement (I) correct.
Statement (II) discusses heritability and genetic progress.
The response to selection (\( R \)) is directly proportional to narrow-sense heritability (\( h^2 \)):
\[ R = h^2 \cdot S \] Where \( S \) is the selection differential.
A high heritability indicates that a larger proportion of the phenotypic variation is due to additive genetic variance.
This allows breeders to achieve rapid genetic progress through phenotypic selection.
Conversely, low heritability means that phenotypic selection is less effective, resulting in slower genetic progress.
Therefore, high heritability, not low, is desired for rapid genetic progress.
This makes Statement (II) incorrect.
Step 2: Final Answer:
Statement (I) is correct but Statement (II) is incorrect.
Evaluating dairy cattle development programs and understanding genetic parameters like heritability are essential for planning effective breeding strategies.
Detailed Explanation:
Let us analyze both statements:
Statement (I) describes the development of the "Vrindavani" cattle breed.
Vrindavani is a synthetic crossbred dairy breed developed at the Central Institute for Research on Cattle (CIRC), Meerut, in collaboration with the Military Farms Department.
The breed was developed by crossing exotic dairy breeds (Holstein-Friesian, Brown Swiss, and Jersey) with the indigenous Hariana breed, resulting in an exotic inheritance level of \( 50\% \text{ to } 75\% \).
This makes Statement (I) correct.
Statement (II) discusses heritability and genetic progress.
The response to selection (\( R \)) is directly proportional to narrow-sense heritability (\( h^2 \)):
\[ R = h^2 \cdot S \] Where \( S \) is the selection differential.
A high heritability indicates that a larger proportion of the phenotypic variation is due to additive genetic variance.
This allows breeders to achieve rapid genetic progress through phenotypic selection.
Conversely, low heritability means that phenotypic selection is less effective, resulting in slower genetic progress.
Therefore, high heritability, not low, is desired for rapid genetic progress.
This makes Statement (II) incorrect.
Step 2: Final Answer:
Statement (I) is correct but Statement (II) is incorrect.
Was this answer helpful?
0
0
Top ICAR AIEEA Animal Science Questions
- Which of the following antiviral drug is available for treatment of lumpy skin disease in cow?
- How do you arrange the correct sequence of the following procedural steps for early pregnancy diagnosis in cow?
(A) Do the insemination in adult dairy cows.
(B) Administer a small dose (2.5 mg or 0.5 ml) of Dinoprost (Lutalyse) intravenously through the ear vein.
(C) Observe critically the teat of the animal for alveolar milk to start flowing about one minute later.
(D) After 18 to 22 days and 3 hours prior to the evening milking, place the teat cannula in the left fore-teat and leave it for milk flow from the teat cistern till it ceases.
Choose the correct answer from the options given below which describe the correct sequential steps for early pregnancy diagnosis in cow. - Match List-I with List-II.Choose the correct answer from the options given below.
List-I (Toxic Element) List-II (Effect of toxicity on Animal) (A) Fluoride (I) Abdominal pain and diarrhea can be common clinical signs in animals exposed. (B) Arsenic (II) Short-term exposure may include nausea, vomiting, diarrhea, increase in blood pressure or heart rate, skin rashes and eye irritation. (C) Lead (III) Cattle can show clinical signs of depression, weakness and ataxia with postmortem findings of gastroenteritis and degenerative changes in the renal tubular epithelium. (D) Mercury (IV) Abdominal pain or colic, vomiting, a staggering gait and weakness, incoordination, rapid weak pulse and shock, diarrhea, followed by collapse and death. - Polygene term was given by one of the following?
- According to Hardy Weinberg Law, genotype frequencies in the progeny depend only on the
View More Questions
Top ICAR AIEEA Animal Breeding Questions
- How do you arrange the correct sequence of the following procedural steps for early pregnancy diagnosis in cow?
(A) Do the insemination in adult dairy cows.
(B) Administer a small dose (2.5 mg or 0.5 ml) of Dinoprost (Lutalyse) intravenously through the ear vein.
(C) Observe critically the teat of the animal for alveolar milk to start flowing about one minute later.
(D) After 18 to 22 days and 3 hours prior to the evening milking, place the teat cannula in the left fore-teat and leave it for milk flow from the teat cistern till it ceases.
Choose the correct answer from the options given below which describe the correct sequential steps for early pregnancy diagnosis in cow. - To construct a selection index which of the following is not necessary?
- In a population with a coefficient of inbreeding F, change of mean resulting from inbreeding is
- Which of the following is not a buffalo breed?
- The parent offspring relationship is -----------% in populations where there is no inbreeding.
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions