Various options are provided as possible answers to the following questions - NSC Agricultural Sciences - Question 1 - 2016 - Paper 1

The answer is A. Nutritive ratio is commonly used to assess protein content in feeds.

To find the digestible protein (DP) content for Feed B, use the formula:

$DP_{total} = DP_{A} + DP_{B}$
where,

• $DP_{total} = 40 kg$,
• $DP_{A} = 0.09 imes 40 kg$.

By rearranging the formula, we can find $DP_{B}$. If the DP for Feed A is 9% then:

$DP_{A} = 0.09 imes 40 = 3.6 kg$

So for the total 40 kg DP:

$DP_{B} = DP_{total} - DP_{A} = 40 - 3.6 = 36.4$

Now, we must find its percentage out of total DP:

If total ration is 100 kg, then $DP_{B} = 36.4 / 100$.

Thus the DP content for Feed B is D, 6%.

The answer is D. Methane is one of the main gases produced during digestion in ruminants and is often responsible for bloating.

The best answer is B. Sheep feel more secure when they are kept together with their peers.