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Questions and Answers
What is the potential gain in dairy cattle achieved through artificial insemination?
What is the potential gain in dairy cattle achieved through artificial insemination?
- 1% of the mean gain is cumulative once each year's gain is achieved (correct)
- 2% of the mean gain is cumulative once each year's gain is achieved
- 10% of the mean gain is cumulative once each year's gain is achieved
- 5% of the mean gain is cumulative once each year's gain is achieved
What effect does the use of artificial insemination have on the rate of inbreeding in closed populations?
What effect does the use of artificial insemination have on the rate of inbreeding in closed populations?
- Provides a wider choice of unrelated genetic effect (correct)
- Ensures sufficient levels of population production
- Increases the intensity of selection of males progeny testing
- Negatively impacts the rate of inbreeding
What happens to the exogenous source in the context of multiple ovulation and embryo transfer (MOET)?
What happens to the exogenous source in the context of multiple ovulation and embryo transfer (MOET)?
- It extends the luteal phase in treated females
- It continues to exert a negative feedback on FSH and LH secretion
- It ensures accuracy of progestagens
- It regresses naturally during the period when MOET is applied (correct)
What is the purpose of distributing semen from a team of young bulls?
What is the purpose of distributing semen from a team of young bulls?
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What is the potential use of the corpus luteum (CL) in the context of artificial insemination?
What is the potential use of the corpus luteum (CL) in the context of artificial insemination?
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Match the following terms with their descriptions:
Match the following terms with their descriptions:
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Study Notes
Potential Gains in Dairy Cattle from Artificial Insemination
- Artificial insemination (AI) improves genetic diversity, allowing farmers to select bulls with superior traits for breeding.
- There is potential for enhanced milk production, better health traits, and improved growth rates through targeted breeding.
- AI facilitates more rapid genetic progress compared to natural breeding methods.
Effects on Inbreeding Rates in Closed Populations
- Use of artificial insemination reduces inbreeding rates by introducing diverse genetic material.
- AI allows access to a wider range of genetic profiles, leading to healthier populations.
- Closed populations may otherwise face increased risks of genetic defects due to limited genetic variation.
Impact of Exogenous Source in MOET
- Exogenous sources refer to external genetic contributions in multiple ovulation and embryo transfer (MOET) techniques.
- This method allows for the transfer of genetically superior embryos to enhance herd performance.
- The process reduces the time required for breeding superior cattle by bypassing traditional gestation periods.
Purpose of Distributing Semen from Young Bulls
- Distributing semen from a team of young bulls diversifies genetic traits in a breeding program.
- Young bulls are often less inbred and can introduce novel genetic materials when bred with a variety of cows.
- This practice helps maintain genetic diversity, enhancing herd resilience and productivity.
Potential Use of Corpus Luteum in AI
- The corpus luteum (CL) plays a crucial role in maintaining pregnancy post-insemination.
- Its function can be manipulated to synchronize estrous cycles in cows, optimizing timing for insemination.
- Monitoring the CL can enhance the success rates of artificial insemination by ensuring better timing in fertilization.
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