Development of Feedstuff to Use Grinded Silage of Whole Crop Barley and Wheat.

Development of Feedstuff to Use Grinded Silage of Whole Crop Barley and Wheat

Tae-Hwa Song, Jong-Ho Park, Jong-Chul Park, Chon-Sik Kang, Jae-Han Son, Young-Mi Yoon,

Yang-Kil Kim, Young-Keun Cheong, Kyong-Ho Kim, Bo-Kyeong Kim and Tae-Il Park ^*

Department of Crop Breeding Division, National institute of crop science, Iseo-myen, 55365, Korea

ABSTRACT

Whole crop barley and wheat contains 30~40% ripened grains, and they are depending on how the raw materials are processed and used. Here, these are the possibility to use them as feed for pigs and poultry. This study was carried out to investigate the optimum harvesting time, feed value and fermentation quality to make the grinded silage of the whole crop barley and wheat to substitute the formula feed. The cultivars used in this study were barley ‘Saessalbori’(Hordeum valgare L.) and wheat ‘Geumkangmil’(Triticum aestivum L.) of Korea. ‘Saessalbori’ was harvested at the 30, 35 and 40 days, and ‘Geumkangmil’ was harvested at the 35, 40 and 45 days after heading, respectively. The feed value and fermentation quality of silage was analyzed after 60 days fermentation. As a result, moisture content of barley and wheat for grinded silage decreased at late harvest more and more, whereas dry matter yield and TDN(total digestible nutrients) yield increased with prolonged period after heading significantly at p<0.05. In case of feed value, crude protein content increased with late harvesting time, but crude fiber content decreased. Crude fat and ash content slightly decreased, but no significant. NDF(neutral detergent fiber) and ADF(acid detergent fiber) content decreased with later harvest in barley and wheat. TDN content increased at later harvest more and more, but no significant. Comparing the effects of fermentation on feed value of these silages, the compositions slightly increased after fermentation, but no significant. Fermentations resulted in increasing the pH value of the late harvesting time, and decreasing the lactic acid content (p<0.05). Consequently, considered the quantity and quality of fermentation of barley and wheat, these can be used for whole crop silage when they were grinded at 35 days and 40 days after heading in Korea, respectively.

Keywords: barley, wheat, feed, silage, fermentation

Corresponding author*: Tae Il Park

Address: 181 Hyeoksin-ro, Iseo-myeon, Wanju-gun, Jeonllabuk-do, 55365, Korea

Tel: 063-238-5222, Fax: 063-238-5205

E-mail: parktl@korea.kr