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.

This study was conducted to evaluate feed value of imported hays and examine current situation of species and hay grade. To evaluate the quality of the imported hay, 133 pieces including 9 species of roughage types were collected at the national hay importers, the TMR companies and livestock farms from 2016 to 2018. The quality grades of imported hay were 3~4 and most imported hay were considered to had low. The ADF, Ash, TDN and DDM in feed composition of alfalfa by quality grades presented significant differences(p<0.05). The quality grade on alfalfa was not similar to the actual quality grades calculated through feed composition. The feed composition of grasses by quality degrees presented significant differences in all contents except DM and CP (p<0.05). As the distributed grasses of the unmarked quality grade was low quality and accounted for 49%, it is urgent to present quality standards based on feed composition. As these results, the grades of imported hays were lower than the marked quality grades. Therefore, the imported roughage’s(hay) price that considered to only quality grades on the marked imported roughages(hay) package can cause a loss to the livestock farms as economic damage. An institutional arrangement should be established to review the quality grades of imported hay.

본 연구는 2008년 1월부터 12월까지 충남대 학교 농업생명과학대학과 가축유전자원시험장에서 수행하였다. 공시가축은 유산양(Sannen, Capra aegagrus) 12두(female, ), 재래산양(Korean native goats, Capra hircus) 12두(female, ), 꽃사슴(sika deer, Servus nippon) 5두(female, )를 공시하였다. 공시재료는 2006년에 미국에서 수입된 annual ryegrass str

본 시험은 봄철 속정건조에 의한 건조효과와 건초품질을 구명하여 양질의 건초를 조제코자, 알팔파(Vernal)과 연맥(Swan)을 공시하여 건조방법(건조제, conditioning, 대구조)을 달리하여 1997년 봄 수원 축산기술연구소에서 수행되었다. 수확시기는 6월 3일로 얄팔파는 개화초기, 연액은 춤수기였으며, 화학제인 건조제는 2%를 수확직선 처리 하였고, 물리적인 conditioning은 모델 GMR 2800 trail-type mower cond

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.

An experiment was carried out to determine effect of cultivar and preservative on the characteristics and quality of baled oat(Avena sativa L.) hay after 60 days of storage. Ihe main plots consisted of the cultivars such as 'Foothill' and 'Swan', and the

An experiment was carried out to determine effect of cultivar, drying agent concentration and preservative on the moisture content, temperature and quality changes of fall harvested oat(Avena sativa L.) hay during field curing and storage. The main plots

An experiment was carried out to determine the effect of cultivar and tedding frequency on changes of moisture content of oat(Avena sativa L.) hay during field drying and on quality of baled oat hay after storage. The experimental design was a split-plot

This experiment was canied out to determine the effect of cultivar, harvest date and drying method on the changes of moisture content and quality of spring harvest oat(Avena sativa L.) hay. Disign of the experiment was a spilt-split-plot arrangement with

An experiment was camed out in 1994 to determine the effects of curing periods and preservatives on the characteristics and forage quality of baled alfalfa(Medicago sativa L.) hay after 60 days of storage. The main plots consisted of the curing periods su

Near infrared reflectance spectroscopy(NIRS)로 포장를 평가하기 위하여 일건 알파파 건초 5점의 조단백질, NDF, ADF 함량을 측정하였으며 NIRS와 전통적인 문화저방법에 의한 분석치를 비교하였다. 조단백질과 ADF의 량은 NIRS와 화학분석 식간간에 차이가 없었으나 NDF의 함량은 시료번호 2, 4.5에서 유의착(P<0.05)가 있었다.)가 있었다.