描述
grass fed
Most cattle are only raised and fattened on the pasture and grazed on the natural pasture. Grass-fed beef is low in fat and cholesterol and rich in omega-3 fatty acids. Generally, there are six kinds of forage for cattle: stubble left in the field after crop harvest, natural forage and shrub, forage for artificial irrigation and fertilization, legume forage, silage (fermented forage) and hay.
描述
grain fed
Only 85-90% of the grain-fed cattle are kept in the pasture. When they reach a certain weight or age, they are transferred to the feedlot for fattening. The main grains used during the grain feeding period are wheat, barley, sorghum, and black wheat. At the same time, lupine, purple pea, cottonseed or rapeseed by-products, as well as silage or hay, are used to provide cattle with the protein, carbohydrate, fat and crude fiber needed for growth.
Why use grain feeding?
There are various reasons for grain feeding. From the perspective of supply and demand, using grain feeding can shorten the mature period of cattle and help maintain the continuous supply of beef. Grain feeding is also helpful for meat taste, such as tenderness, and is conducive to improving eating quality. In addition, due to different market positioning, grain-fed beef can meet certain specific market needs (for example, beef with rich marbling). It is worth mentioning that in the dry or dry season, grain is usually used as a substitute or supplement to feed cattle in the pasture.
Fat color
Since cattle are only fed with plants containing lutein during the feeding process, the fat of grass-fed beef is light yellow, while that of grain-fed cattle and calves is white.
Pattern contrast
Marbling refers to intramuscular fat (intramuscular fat), which increases with the weight of animals and has nothing to do with the type of feed. The longer a cow keeps a nutritious diet, the more weight it gains, and the more oil flower content it has in its body.
Feeding cycle
The general grain-feeding cycle is: short-term grain-feeding (100-150 days), medium-term grain-feeding (150-200 days) and long-term grain-feeding (more than 200 days). Due to the accelerated weight gain of cattle during the grain-feeding period, after medium-term and long-term grain-feeding, the oil content of beef is more than that of grass-fed beef.
Purchase Guide
According to taste requirements
Grass-fed beef is grazed in a wide range of pastures and has more exercise, so it tastes more chewy, while grain-fed beef is raised in captivity to limit the movement of cattle, and then fed in high-nutrition grain, so the oil flower of cattle is more abundant. If you want to taste tender and smooth, you can consider grain-fed beef or grass-fed beef with young age.
According to cooking needs
Grass-fed beef with rich fiber and chewiness is more suitable for stewing. The soup made from old beef is richer, more durable and more flavor. Recommended dishes, such as braised beef ribs, stewed beef with Japanese potatoes, etc. Grain-fed beef with high oil content is suitable for frying and grilling. Recommended dishes include fried beef, beef scallion roll, etc.