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The following table outlines the constituents of a ration that is fed as a supplement to hay or silage to a pregnant ewe - Leaving Cert Agricultural Science - Question 3 - 2007
Question 3
The following table outlines the constituents of a ration that is fed as a supplement to hay or silage to a pregnant ewe. | Constituent | Percentage of Ratio... show full transcript
Worked Solution & Example Answer:The following table outlines the constituents of a ration that is fed as a supplement to hay or silage to a pregnant ewe - Leaving Cert Agricultural Science - Question 3 - 2007
Step 1
Give reasons, in each case, for the inclusion of the four constituents in the diet of a pregnant animal.
Answer
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Beet Pulp:
- Provides fiber and energy, essential for maintaining gut health and overall energy levels during pregnancy.
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Rolled Barley:
- Serves as a source of carbohydrates and forms a significant energy source, aiding in weight gain and fetal development in pregnant ewes.
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Soya Bean Meal:
- Offers a high protein source, crucial for the growth of the fetus and ensuring adequate milk production for lambs post-birth.
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Mineral Mixture:
- Prevents conditions such as hypocalcemia and is vital for proper metabolic functions, helping in the prevention of lambing sicknesses.
Step 2
What would be the consequences if the ration were to be composed of 40% soya bean meal and 20% rolled barley?
Answer
If the ration consists of 40% soya bean meal and only 20% rolled barley, it may lead to:
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Nutritional Imbalance:
- The diet may become protein-heavy, leading to overnutrition issues and decreased energy levels.
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Reduced Fiber Intake:
- Insufficient fiber could result in digestive issues, affecting energy extraction and overall ewe health.
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Increased Risk of Lambing Difficulties:
- Excessive protein and inadequate mineral balance may lead to complications such as a higher likelihood of large lambs or difficulties in birthing.
Step 3
Step 4
Step 5
Step 6
the consequences for the pregnancy if the above ration is not fed
Answer
Not feeding the optimal ration can lead to:
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Low Milk Production:
- Inadequate nutrition may cause insufficient milk supply, impacting lamb survival.
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Poor Health of Ewes:
- Increased risk of lambing diseases, such as hypocalcemia and twin lamb disease.
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Reduced Lamb Survival Rates:
- Lack of proper nutrients can elevate mortality rates among newborns due to weak health and poor birth conditions.
Step 7
Explain four advantages of winter housing for pregnant ewes.
Answer
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Protection from Harsh Weather:
- Houses provide shelter against snow, rain, and wind, promoting the overall health and comfort of pregnant ewes.
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Improved Nutritional Management:
- Ewes can be fed hay and concentrate without competition from other grazing animals, ensuring they receive adequate nutrition.
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Monitoring During Lambing:
- Easier to observe and manage ewes during lambing, leading to timely interventions if complications arise.
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Better Lamb Survival Rates:
- Controlled environment helps in reducing stress and improving lamb survival rates, ultimately enhancing productivity.