ANSC Feeds Practice Exam

How does the digestibility of coastal hay harvested in April compare to that of coastal hay harvested in May?

1. Higher

2. Lower

3. The same

4. Uncertain

The correct answer is: Higher

The correct answer is that the digestibility of coastal hay harvested in April is generally higher than that of hay harvested in May. This can be attributed to the different growth stages of the grasses at the time of harvest. Coastal hay harvested in April is typically cut during the early growth stages, when the grasses are more succulent and have higher nutrient content. As grasses mature into May, they tend to develop more fibrous structures and lignin, which can lead to reduced digestibility. The variations in digestibility can significantly affect the quality of the hay and its suitability for livestock. Livestock benefit more from higher digestibility because it allows for better nutrient absorption and overall health. Factors such as moisture content, nutrient levels, and the plant's maturity stage at the time of harvest all play a role in determining the digestibility of the hay. Thus, knowing that hay harvested earlier in the growing season tends to be more digestible helps in selecting forage that maximizes the nutritional benefits for animals.