Three factors that could negatively affect the composition of farm manure ?

1. Use of antibiotics in livestock: Antibiotics given to livestock can alter the microbial composition of manure, potentially reducing the beneficial microorganisms that help break down organic matter and release nutrients.

2. Improper storage and handling: If manure is not stored properly or handled incorrectly, it can lead to the growth of harmful pathogens and reduce the overall nutrient content of the manure.

3. Contamination with chemicals or heavy metals: If manure is contaminated with chemicals or heavy metals from pesticides, fertilizers, or other sources, it can negatively affect the composition of the manure and potentially harm soil and water quality when applied to fields.

1. Feed intake and composition: The composition of livestock manure is directly influenced by the type and amount of feed consumed by the animals. Changes in feed intake or composition can alter the nutrient content and microbial populations within the manure. For example, a diet high in protein will result in manure with higher nitrogen content, while a diet high in fiber will produce manure with higher organic matter content.


2. Management practices: The way in which manure is handled and stored can also impact its composition. Poor storage and management practices, such as inadequate aeration or exposure to excessive moisture, can lead to the loss of nutrients through volatilization or leaching.


3. Environmental factors: Environmental factors, such as temperature, precipitation, and sunlight, can also affect the composition of manure. High temperatures can accelerate the decomposition of organic matter, leading to a loss of nutrients. Excessive rainfall or flooding can leach nutrients from manure storage areas.