• Undermine the conversion of nutrients into animal derived foods• Increased requirements, or reduced absorption of nutrients• Could you name a few?

It seems like there might be some confusion with your question as it's not clear what specific information you're looking for. However, I'll try to provide some general information based on what you've asked.

1. Undermine the conversion of nutrients into animal derived foods: This could refer to factors that negatively affect how efficiently animals convert the food they eat into meat, milk, eggs, etc. This could include poor quality feed, disease, stress, or unsuitable living conditions.

2. Increased requirements, or reduced absorption of nutrients: This could refer to situations where an animal's nutrient needs increase or their ability to absorb nutrients decreases. This could be due to growth, pregnancy, lactation, disease, or aging. For example, a growing animal or a lactating animal will have higher nutrient needs. If an animal has a disease that affects their digestive system, they may not be able to absorb nutrients as effectively.

3. Examples of factors that could undermine the conversion of nutrients into animal derived foods or increase nutrient requirements/reduce nutrient absorption:

   • Disease: Illness can reduce an animal's appetite and/or interfere with nutrient absorption.

   • Poor Quality Feed: If the feed is of poor quality, the animal may not get all the nutrients it needs, or may not be able to convert those nutrients efficiently into animal derived foods.

   • Stress: Stress can affect an animal's appetite and metabolism, potentially reducing the efficiency of nutrient conversion.

   • Unsuitable Living Conditions: Conditions that are too hot, too cold, too crowded, etc. can increase stress and disease risk, both of which can affect nutrient conversion and requirements.

   • Age: Very young and very old animals may have different nutrient requirements and may not absorb or convert nutrients as efficiently.

   • Pregnancy and Lactation: Pregnant and lactating animals have increased nutrient needs. If these needs are not met, it could affect the health of the mother and offspring and the production of animal derived foods.