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Flushing and sponging of ewes are common practices in sheep production - Leaving Cert Agricultural Science - Question c - 2013
Question c
Flushing and sponging of ewes are common practices in sheep production. Explain the terms flushing and sponging as used here. Maggots are a common parasite of shee... show full transcript
Worked Solution & Example Answer:Flushing and sponging of ewes are common practices in sheep production - Leaving Cert Agricultural Science - Question c - 2013
Step 1
Explain the terms flushing and sponging as used here.
Answer
Flushing refers to the practice of placing ewes on high-quality pasture with a higher stocking rate for a period of 3 to 4 weeks before breeding. This action increases the nutritional intake, resulting in a reduced stocking rate during mating, leading to a higher number of eggs released during ovulation. As a result, there is a higher conception rate and more regular heat periods observed. This practice ultimately enhances the opportunity for successful fertilization of embryos.
Sponging, on the other hand, involves the use of a hormone-impregnated sponge inserted into the vagina of the ewe. This sponge is left in place for 12-14 days, and upon removal, it helps synchronize the heat cycle of the ewes, ensuring that they come into heat around the same time. The method is economical for managing lamb production and aids in effective ram use by reducing labor costs.
Step 2
Step 3
Describe three common methods of maggot prevention or control in sheep management.
Answer
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Blowfly Control: Regularly monitor sheep for signs of blowfly infestation and use blowfly traps or baits to reduce fly populations in the area.
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Dipping or Pour-on Insecticides: Apply insecticides as a dipping solution or pour-on treatment to eliminate or repel blowflies from the sheep's body and wool.
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Wool Management: Practice regular shearing or wool shearing to prevent dirt accumulation, which can attract flies, and ensure adequate tail docking to minimize soiling in the tail region.