The objective of the present study was to evaluate the effect of storage type and period on the quality of rye hay. The rye “Gogu” was sown on October 15, 2020, and harvested on April 22, 2021 (heading stage). The rye hay was prepared in two wrapping conditions (wrapping and unwrapping) and two storage period (3 and 6 months). In regards to their visual appearance, the forage quality score was higher in wrapped rye hay than in unwrapped rye hay. In all groups, there was no difference in appearance between inside and outside. The moisture content of wrapped rye hay was maintained at the initial level until 6 months. However, the moisture content of unwrapped rye hay was increased at 3 months of storage, and then decreased at 6 months of storage. Crude protein content was higher in wrapped rye hay than in unwrapped rye hay, whereas NDF and ADF contents were lower within wrapped rye hay than within unwrapped rye hay (p<0.05). In conclusion, wrapping rye is effective method for long-term storage that reduces the effect of external environment.

Hay-making is one of the most common way for forage preservation in livestock industry. The quality and production of hay could be affected by various factors. This experiment was conducted to investigate the effect of tedding time and frequency on drying rate and feed value of forage rye (Secale cereale L.) hay. Rye was harvested on heading stage using mower conditioner. Hay was tedded at each set hour(09:00, 13:00 and 17:00) and sampled at each set hour to determine dry matter (DM) content. After two months’ preservation, CP (crude protein), ADF (acid detergent fiber), NDF (neutral detergent fiber), IVDMD (in vitro dry matter digestibility), TDN (total digestible nutrient), RFV (relative feed value), DM loss, visual scores and total fungi count were determined for estimation of hay quality. Tedding was necessary for both speeding up drying rate and improving forage quality. Tedding at 17:00 showed lower NDF content (p<0.05), and also higher RFV value was found compared with tedding at 9:00 and 13:00 (p<0.05). On the other hand, it was observed that more DM losses would be found when tedding later (p<0.05). Tedding in 1~3 times per day were lower in ADF and NDF content (p<0.05), increased CP, TDN and RFV (p<0.05), got less DM loss (p<0.05), and contained less fungi during conservation compared with no tedding (p<0.05). On the other hand, tedding too frequent caused more DM loss (p<0.05). In conclusion, for shorter drying process and higher quality of forage rye hay, tedding at 13:00∼17:00 for 1∼2 times per day was recommended in this study.

Hay-making is one of the most common forage preservation practices in livestock operations. The objective of hay-making is to minimize nutrient loss by shortening field drying time. Measuring the impacts of cutting height of forage crop is necessary to optimize hay production balancing yield and quality, in order to obtain substantial biomass increase through harvest of regrowth. This experiment was conducted to investigate the impact of cutting height of rye (Secale cereale L.) on drying rate and hay quality. Heading stage rye was harvested at 8cm or 15cm stubble heights. Hay was daily tedded at 09:00 and sampled at 09:00, 13:00 and 17:00 to determine moisture content (MC). After two month of preservation, CP (crude protein), ADF (acid detergent fiber), NDF (neutral detergent fiber), IVDMD (in vitro dry matter disappearance), TDN (total digestible nutrient), RFV (relative feed value), DM (dry matter) loss, visual scores and total fungi count were determined for estimation of hay quality. Cutting height at 15cm could enhance the drying rate and CP content (p<0.05), but also increases DM loss (p<0.05) compared to cutting at 8cm. Cutting heights did not affect ADF, NDF, IVDMD, TDN and RFV value (p>0.05). Visual scores of rye hays cutting at 8cm and 15cm, ranged from 83 to 85. Cutting at 8cm tended to maintain higher core bale temperature and fungal count than cutting at 15cm during preservation, but there was no significant difference.

본 연구는 호밀 건초를 급여하는 조건하에 알코올 발효사료에 대한 면실, 아마 및 대두종실의 첨가가 in vitro 반추위 발효특성에 미치는 영향을 구명하고자 실시하였다. 시험구 처리는 전지종실을 첨가하지 않고 발효한 알코올 발효사료구(대조구: T1), 면실종실을 첨가하여 발효한 면실 알코올 발효사료구(T2), 아마종실을 첨가하여 발효한 알코올 발효사료구(T3) 및 대두종실을 첨가하여 발효한 알코올 발효사료구(T4)의 4처리로 하였다. 배양시간에 따른 p

This syudy was conducted to increase the utility of forage rye which are suitable to be cultivated at high altitude Taekwllyong area. For that purpose two cultivars of rye (winter-more, kool-glazer) were cultivated for 3years using a randomized block desi

본 시험은 봄철 속성건조에 의한 건조효과와 건초품질을 구명하여 양질의 건초를 조제코자, 호밀(Koolgrazer)을 공시하여 건초 조제시기(수잉후기, 출수기, 개화기)별로 건조방법(건조제, conditioning, 건조제 + conditioning, 대조구)을 달리하여 1996년 봄 수원 축산기술연구소에서 수행되었다. 화학제인 건조제는 K 2 C O 3 2%를 수확직전 처리하였으며, 물리적인 conditioning은 모델 GMR 2800 trail-type Mower conditioner를 사용하였다. 포장건조 후 각형 곤포를 조제하였으며, 건초의 외관평가와 사료가치는 2개 월간 보관저장 후 분석 평가하였고, 시기별 식물체의 수분 함량은 포장상태에서 양파망을 이용 조사하였다. 건조속도는 수잉후기, 출수기, 개화기로 건초 조제 시기가 늦어질수록 빨랐으며, 건조방법별로는 conditioning구와 건조제 + conditioning 구에서 우수하였고, 전반적으로 건조제 처리효과는 낮았다. conditioning 처리시 건초조제 가능일수는 수잉후기 4일, 출수기 3일, 개화기 1.5일 정도였으며, 대체로 건조제 처리구나 대조구에 비해 1일 이상 포장 건조기간 단축효과가 있었다. 건초의 건물손실은 조제시기가 늦을수록 감소하였으며, 건조방법별로는 conditioning구와 건조제 + conditioning 구에서 적었다. 건초의 외관평가에서 조제시기가 빠를수록 평점은 높았으며, 건조방법별로는 conditioning구와 건조제 + conditioning 구에서 우수하였다. 건초의 화학성분 평가에서 조제 후 저장기간중 조섬유 함량이 높아져 품질은 낮아졌으며, 대조구에 비해 conditioning구와 건조제 + conditioning 구에서 ADF와 NDF 함량이 다소 낮고 건물소화율은 약간 높은 경향을 보였다. 이상의 결과로서 호밀의 건초 조제시 포장에서의 건조기간 단축과 품질향상을 위해서는 mower conditioner 사용이 가장 바람직 하였으며, 건조제 처리효과는 없었고, conditioning과 건조제의 병행처리는 conditioning 단독처리에 비해 효과적이지 못하였다. 또 양질의 건초 조제를 위해서는 늦어도 출수기 수확이 유리하였다.

A field experiment was carried out to determine the effects of chemical drying agents at mowing on the field drying rate of alfalfa (cv. Vernal) and rye (cv. Koolgrazer) for hastening hay manuf8cture. In alfalfa; chemicals ( 2% 3% 2% , 2% 2% + , 1% only