The objective of this study was to compare the feeding effects of imported timothy hay, domestic Italian ryegrass silage (IRGS) and IRG dried by hot-air dry system (IRGHDS) under basic total mixed ration (bTMR) on rumination activity, milk production, and milk composition in lactating dairy cows. Eighteen Holstein dairy cows were divided into three groups: control (bTMR + imported timothy hay), treatment 1 (bTMR + IRGS) and treatment 2 (TMR + IRGHDS) groups. The study was conducted over a total period of 24 days, including a 10 days adaptation period and a 14 days main experimental period. The results indicate body weight was not significantly different between the three groups (p>0.05), and rumination time was significantly higher in the treatment 1 group compared with the control group (p<0.001). Milk fat, protein, and lactose were not significantly different between the three groups (p>0.05), however, somatic cell counts were significantly lower in the treatment 1 group compared with the control group (p<0.001). As a result of the economic feasibility analysis, it is expected that feeding TMR using IRGS and IRGHDS will increase profit by 402.8 won/day and 331.4 won/day per cow compared to imported timothy hay. Therefore, IRGS and IRGHDS can be used as substitutes for imported timothy hay in feeding lactating dairy cows.

The objective of this study was to investigate the comparison of feeding a total mixed ration (TMR) containing imported alfalfa hay and TMR containing hot-air dried domestic alfalfa on rumination activity, milk production, and composition in lactating dairy cows. Ten Holstein dairy cows were divided into two groups: control (imported alfalfa hay + TMR) and treatment (hot-air dried domestic alfalfa + TMR) groups. The study was conducted over a total period of 18 days, including a 13-days adaptation period and a 5-days main experimental period. The results indicated no differences in total digestible nutrient and net energy intake between the imported and hot-air dried alfalfa. Body weight was not significantly different between the two groups (p>0.05), however, total feed intake and rumination time were significantly and tendentially higher in the treatment group compared with control group, respectively (p<0.001; p=0.075). Milk yield was not significantly different between the two groups (p>0.05), however, milk fat (kg) and lactose (%) concentration were significantly higher in the treatment group compared with control group (p=0.016; p=0.02). This study confirms that feeding TMR with hot-air dried domestic alfalfa results in no differences of feed intake, rumination activity, and milk productivity. Therefore, it is considered that hot-air dried domestic alfalfa can be used as a substitute for imported alfalfa on lactating dairy cows.

본 연구의 목적은 마음챙김 자기효능감, 자기자비, 역기능적 태도, 의도적 반추의 관계에 관한 이론적 고찰을 시행하는 것이다. 현재까지 국내·외 문헌에서 보고된 마음챙김이나 자기자비와 관련된 연구들은 대부분 알아차림에 초점을 둔 연구들이 다수였으나, 인지치료의 핵심이 되는 역기능적 태도나 의도적 반추와 함께 살펴본 연구는 미비한 실정이었다. 이에 따라 본 연구에서는 마음챙김 자기효능감, 자기자비, 역기능적 태도, 의도적 반추의 관계성에 대해 문헌고찰을 함으로써 개괄적인 이해를 돕고자하며, 정신건강을 위한 임상심리 현장에서 심리치료 및 상담을 시행하는데 있어, 치료적 방향을 설정하기 위해 도움이 되는 기초적인 자료로서 활용되기를 기대한다.

꽃사슴의 효율적인 사양관리를 위한 기초자료의 제시를 위해 근전도(EMG) Telemetry system을 이용한 사슴의 채식행동 조사가 실시되었다. 사슴은 다른 반추가축에 비해 빈번하고 불규칙한 채식행동 양식이 나타났다. 일중 채식과 반추에 소비한 시간은 각각 261분과 291분이었다. 사슴은 반추행동시에 일중 총 647회의 식괴와 1반추기당 평균 21.6회의 식괴를 토출했으며 1식괴당 26.9초의 반추시간을 나타냈다. 반추기간중 총 저작시간은 245.

This experiment was conducted to evaluate individual difference of chewing speed and chews per bolus duing the rumination using twenty three heads of grazing cattle and thirty six heads of barn feeding cattle. Rumination behaviour was measured and recorde

The variation of rumination response in steers fed a same amount of orcharugrass hay was investigated. With three steers (6, 12, 24 months) of the Japanese Black Breed, rumination behaviour was measured continuously during a 5 days period by masseter EMG

The variation of rumination response in steers fed a same amount of orcharograss hay was investigated. With three steers (6, 12, 24 months) of the Japanese Black Breed, rumination behaviour was measured continuously during a 5 days period by masseter EMG