-It is possible to implant embryo from a high quality female to less valuable female and hence improve the performance of the offspring.
-It stimulates milk production in a female that was not ready to produce milk.
-A highly productive female can be spread over a large area to benefit many farmers.
-It is easier to transport embryos in test tubes than the whole animal.
-Embryos can be stored for long periods awaiting availability of a recipient female.
marto answered the question on September 25, 2019 at 05:57
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Date posted: September 25, 2019. Answers (1)
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(i) A 250 cm3measuring cylinder was filed with water to 100 cm3 mark.
(ii) A...(Solved)
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(i) A 250 cm3 measuring cylinder was filed with water to 100 cm3 mark.
(ii) A 100 cm3 beaker was filled with garden soil up to brim.
(iii) The soil was emptied into one measuring cylinder and shook well.
(iv) The final volume was 150 cm3.
(a) What was lost when the 100cm3 garden soil was poured to 100cm3 of water in the measuring cylinder?
(b) Calculate one percentage content of the soil constituents investigated in the experiment
(c) Give two importance of the substance lost above in the soil
Date posted: September 25, 2019. Answers (1)
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(ii) Give a reason for your answer above.
(c) State three advantages of vegetative propagation
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(c) Name two crops that the weed illustrated A above commonly attack
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Date posted: September 13, 2019. Answers (1)
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Date posted: September 13, 2019. Answers (1)
- a)
A farmer has 30 hectares of arable land,20 hectares of which is planted with maize and 10 hectares with grass hay. He wishes to...(Solved)
a)
A farmer has 30 hectares of arable land,20 hectares of which is planted with maize and 10 hectares with grass hay. He wishes to replace 10 hectares of maize with Irish potatoes next year. The fertilizer rate will have to be increased from 2 bags per hectare for maize to 4 bags per hectare for potatoes. As a result of the change extra 40 men days of casual labour per hectare will be necessary at the rate of Kshs.100 per man a day. The average yield per hectare of maize is 35 bags and for potatoes 120bags.The price paid is Kshs.1, 000 per bag of maize and Kshs.600 per bag of potatoes. Maize seeds cost Kshs.750 per hectare and potatoes cost Kshs.800 per hectare. Fertilizer costs are Kshs. 650 per hectare.
i) Draw up a partial budget and advice the farmer accordingly.
ii) Name the other type of budget that can be prepared by a farm manager.
b) Discuss the various problems associated with land fragmentation.
c) Explain four environmental factors that affect the effectiveness of herbicides.
Date posted: September 13, 2019. Answers (1)
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Study the following photographs and use them to answer the question that follows.
a) Identify the type of irrigation shown in the photograph.
b) State any two advantages of the above method of irrigation.
c) Other than the one shown above identify any other two methods that a farmer can use to irrigate his crops.
Date posted: September 13, 2019. Answers (1)
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The following diagrams shows various samples of soil aggregates.
a) Identify the type of soils structures.
b) Briefly explain how soil structures P can be improved.
c) Name two places where soil structure labeled S can be found.
Date posted: September 13, 2019. Answers (1)