The ratio of pig to grain is the ratio of pig to grain. For example, the ratio of pigs to grain is 6: 1, where "6" means feed and "1" means that pigs can grow 1 kg of meat with 6 kg of feed. The full name of pig-grain ratio is "pig-grain parity", which refers to the ratio between pig price and grain price in the same market at the same time. The ratio of pig to grain is a macro index of pig economy, which represents the relationship between pig cost and pig income.
The price of live pigs is generally the reference of pig raising income, while the price of grain is generally the reference of pig raising cost (the grain here refers to typical feed grains such as wheat and corn). The significance of pig-grain ratio lies in that the benefit of pig industry can be judged from a macro perspective. Pig-to-grain ratio and pig-to-feed ratio are two different concepts. The former is macroscopic, focusing on economic indicators, while the latter is microscopic, focusing on feed conversion rate.
Ordinary proportional formula
1, pig-grain ratio
The calculation formula is pig price/corn price.
2. Meat-feed ratio
The calculation formula is pig price/ingredient price.
3. Digestible energy content of feed
The formula is feed digestible energy content (5% premix) = 3.5× corn content +2.46× bran content +3.5× soybean meal content +5× 5% premix energy content.
4. Feed crude protein content
The formula is: feed crude protein content (5% premix) = 8.5× corn content+14× bran content +44 (bean cake 4 1)× soybean meal content +5× 5% premix protein content.
5, feed lysine content
The formula is: lysine content in feed (5% premix) = 0.2× corn content +0.47× bran content +2.5× soybean meal content +5× 5% premix content.