• 한국유기농업학회지
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• 제23권2호
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• pp.335-346
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• 2015

본 연구는 육계 생산과정에서의 건조 Rosemary 잎 분말의 급여가 육계의 생산성, 맹장내 균총 및 깔짚 중 유해가스 발생량에 미치는 영향에 대해서 조사하였다. 총 216수의 7일령 육계에 대조구, Rosemary 분말 0.5% (5 g/kg diet, T1) 및 1.0% (10 g/kg diet, T2)로 구분하여 35일령까지 총 4주간의 사양 시험을 실시하였다. 사육기간중 증체중 및 사료효율은 Rosemary 급여에 의해서 유의하게 증가하였지만(P<0.05), 처리구간(T1 Vs. T2)에는 유의한 차이가 인정되지 않았다. 사료섭취량 및 도태율은 대조구와 처리구간에 차이는 인정되지 않았다. 21일령과 35일령 모두 맹장내 Lactobacillus의 수는 Rosemary 급여에 의해서 유의하게 증가하였고(P<0.05), E. Coli 및 Salmonella의 수는 유의하게 감소하였다(P<0.05). 혐기성 총 미생물 수는 Rosemary의 첨가에 의한 영향은 인정되지 않았다. 깔짚 내 Ammonia의 발생량은 Rosemary 첨가에 의해서 유의하게 감소하였다(P<0.05). 그러나 처리구간(T1 Vs. T2)에는 차이가 인정되지 않았다. 이상의 결과를 종합해보면, 육계사양에서 건조 Rosemary 잎의 급여는 사료중 영양소 이용율 증가, 소화관내 유익균의 증가 및 유해균의 감소, 및 배설물 중 $NH_3$의 발생량 감소로 인한 증체량 및 사료효율을 개선시킬 가능성이 생각된다.

• 한국근적외분광분석학회:학술대회논문집
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• 한국근적외분광분석학회 2001년도 NIR-2001
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• pp.1162-1162
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• 2001

Whereas NIR spectroscopy has been applied in agriculture for more than 20 years, few studies refer to those plant substances occurring only in smaller amounts. Nevertheless there is a growing interest today to support efficiently activities in the production of high-quality medicinal and spice plants by this fast and non-invasive method. Therefore, it was the aim of this study to develop new NIR methods for the reliable prediction of secondary metabolites found as valuable substances in various plant species. First, sophisticated NIR methods were established to perform fast quality analyses of intact fennel, caraway and dill fruits deriving from single-plants [1]. Later on, a characterization of several leaf drugs and the corresponding fresh material has been successfully performed. In this context robust calibrations have been developed for dried peppermint, rosemary and sage leaves for the determination of their individual essential oil content and composition [2]. A specially adopted NIR method has been developed also for the analysis of carnosic acid in the leaves of numerous rosemary and sage gene bank accessions. Carnosic acid is an antioxidative substance for which several health promoting properties including cancer preservation are assumed. Also some other calibrations have been developed for non-volatile substances such as aspalathin (in unfermented rooibos leaves), catechins (in green tea) and echinacoside (in different Echinacea species) [3]. Some NIR analyses have also been successfully performed on fresh material, too. In spite of the fact that these measurements showed less accuracy in comparison to dried samples, the calibration equations are precise enough to register the individual plant ontogenesis and genetic background. Based on the information received, the farmers and breeders are able to determine the right harvest time (when the valuable components have reached their optimum profile) and to select high-quality genotypes during breeding experiments, respectively. First promising attempts have also been made to introduce mobile diode array spectrometers to collect the spectral data directly on the field or in the individual natural habitats. Since the development of reliable NIRS methods in this special field of application is very time-consuming and needs continuous maintenance of the calibration equations over a longer period, it is convenient to supply the corresponding calibration data to interested user via NIRS network. The present status of all activities, preformed in this context during the last three years, will be presented in detail.