Concept:Zero-grazing is a system where livestock are kept in confinement and fed with cut-and-carry forage, preventing them from grazing directly on pasture land.
Explanation:In zero-grazing, animals are housed in pens or designated enclosures.
Farmers cut fresh grass and bring it, along with water, to the animals.
This system limits the movement of livestock across the field.
Since the animals do not graze directly, the pasture is protected from continuous biting, trampling, and soiling.
The vegetation gets adequate time to regenerate and regrow.
Therefore, the main advantage of zero-grazing is that it prevents the depletion of pasture.
Additionally, zero-grazing helps to control the spread of diseases and internal parasites among the animals.
It also ensures efficient utilization of available feed resources.
Option A is incorrect because restricted movement is not a benefit for the animal.
Options C and D are incorrect because increased labour and management costs are considered disadvantages.
Answer:B. prevents depletion of pasture