Track 2-1-1: Grazing Systems, Grassland Restoration and Livestock Production

Description

Hanwoo steers are one of the major sources of meat, required for increasing consumer demands in Korea, Japan, and China. Beef contained high levels of saturated fat, and it contains appreciable quantities of linolenic acid, eicosapentaenoic acid and docosahexaenoic acid. Optimum growth can obtain with appropriate combination of concentrate and forage. Fattening of Hanwoo on concentrate-based feeds resulted in faster, more efficient growth and heavier carcasses. However, feed costs represent the largest single variable in beef production in Korea and Japan. The grass is generally the cheapest source of feed available for beef production, which provides high yields with quality herbage. Grass-feed based production systems are low-input methods that are particularly suitable to meet the demand of meat retailers and consumers. Therefore, in Korea, the combination of roughage and concentrates are commonly available in the market is used for rearing Hanwoo. Especially, the study of manufacturing silage using whole crop barley or whole crop rye was carried out to expand the usage of roughage. Barley is an important crop cultivated for the production of high-quality forage in Korea and Japan. However, the benefits of feeding diet combinations of concentrate and barley silages from growing period to finishing the period of Hanwoo steer have not been evaluated. The objectives of this study were to compare the growth performance, meat quantity and quality characteristics in Hanwoo steers fed barley silage/concentrate and rice straw/concentrate diet.

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Effect of Feeding Whole Crop Barley Silage on Growth Performance, Carcass Trait and Meat Quality of Hanwoo Steer

Hanwoo steers are one of the major sources of meat, required for increasing consumer demands in Korea, Japan, and China. Beef contained high levels of saturated fat, and it contains appreciable quantities of linolenic acid, eicosapentaenoic acid and docosahexaenoic acid. Optimum growth can obtain with appropriate combination of concentrate and forage. Fattening of Hanwoo on concentrate-based feeds resulted in faster, more efficient growth and heavier carcasses. However, feed costs represent the largest single variable in beef production in Korea and Japan. The grass is generally the cheapest source of feed available for beef production, which provides high yields with quality herbage. Grass-feed based production systems are low-input methods that are particularly suitable to meet the demand of meat retailers and consumers. Therefore, in Korea, the combination of roughage and concentrates are commonly available in the market is used for rearing Hanwoo. Especially, the study of manufacturing silage using whole crop barley or whole crop rye was carried out to expand the usage of roughage. Barley is an important crop cultivated for the production of high-quality forage in Korea and Japan. However, the benefits of feeding diet combinations of concentrate and barley silages from growing period to finishing the period of Hanwoo steer have not been evaluated. The objectives of this study were to compare the growth performance, meat quantity and quality characteristics in Hanwoo steers fed barley silage/concentrate and rice straw/concentrate diet.