How can feed, care, and weather affect livestock growth and productivity?

Livestock growth and productivity are significantly influenced by feed, care, and environmental conditions.

Feed and Nutrition

Diet is a primary driver of weight gain and production. In intensive systems like feedlots, animals are provided high-energy diets of grains and legumes to maximize growth. However, because ruminants evolved to digest fibrous forage, grain-heavy diets can alter gut pH and microflora, potentially leading to health issues like ulcers or liver abscesses, which hinder weight gain. Antibiotics are sometimes used to manage these risks and promote growth, though their use for growth promotion is increasingly restricted due to concerns regarding antibiotic resistance.

Care and Management

Management practices aim to reduce energy expenditure and stress. By confining animals, feedlots discourage foraging, allowing more energy to be directed toward growth. Proper care also involves monitoring digestive health and maintaining cleanliness to prevent disease.

Weather and Environment

Environmental conditions directly impact animal well-being:
* Temperature: High temperatures, especially when combined with a lack of shade, cause heat stress, which can be fatal. Sunshades are often used to mitigate this.
* Precipitation: Excess rainfall creates muddy conditions that compromise animal health and interfere with weight gain. Effective drainage and elevated mounds are essential for maintaining productivity in wet conditions.1