Cow-Calf Certification Practice Exam

What technology is commonly used to improve weight gain in cull cows?

1. Probiotics

2. Implants

3. Organic feed

4. Herbal supplements

The correct answer is: Implants

The use of implants is a common practice in the cattle industry, particularly for improving weight gain in cull cows. Implants are small hormone-containing pellets that are typically placed under the skin of the animal’s ear. They release growth-promoting hormones that enhance feed efficiency and stimulate muscle growth, resulting in increased weight gain. This method is effective and widely adopted because it allows for a more controlled and efficient growth response, which is crucial for cull cows that are typically less productive. Probiotics, while beneficial for gut health and digestion, do not impact weight gain as directly or effectively as implants. Organic feed focuses on natural ingredients but may not provide the same immediate weight gain benefits. Herbal supplements might offer some nutritional advantages, but they generally lack the proven efficacy in boosting growth rates compared to hormonal implants. Thus, the primary technology for enhancing weight gain in cull cows relies on the use of implants for their direct influence on growth and feed conversion.