• Title/Summary/Keyword: crop energy

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Effect of peanut shell extract supplementation on the growth performance, carcass characteristics and meat quality of broilers

  • Narae, Han;Byong Won, Lee;Jung Min, Heo;Samooel, Jung;Mihyang, Kim;Jin Young, Lee;Yu-Yong, Lee;Moon Seok, Kang;Hyun-Joo, Kim
    • Korean Journal of Agricultural Science
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    • v.49 no.3
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    • pp.547-560
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    • 2022

  • The present study investigated the effects of dietary supplementation of peanut shell extract on the growth performance and physiological properties of broiler chicks. Two diet energy levels (Positive and Negative) and four additives (0.0, 0.05, and 0.1% peanut shell extract and commercial antioxidant) were factorially arranged for eight treatments. The overall weight gain of the broilers was slightly improved at 0.05% for the antioxidant treatments regardless of the diet energy levels, but there was no statistical difference among the treatments (p > 0.05). The carcass characteristics of the broilers, such as cooking loss, crude protein content, antioxidant activity, and thiobarbituric acid reactive substances (TBARS) values, were improved by the feeding diets containing the 0.05% peanut shell extract. Furthermore, it was confirmed that the dietary supplementation of peanut shell extract did not have a negative effect on the immune responses of the broilers show by the lack of statistical differences in the liver and bursa Fabricious weight and cytokine level among the treatments. From the economic analysis, dietary supplementation of peanut shell extract significantly influenced the compensatory growth and food efficiency and, in turn, led to a decrease in the duration needed to reach 1.5 kg compared to the control. These results suggest the possibility that the peanut shell extract could be used as a functional feed additive by improving the growth performance and carcass characteristics with no detrimental effects on broilers.

  • https://doi.org/10.7744/kjoas.20220050 인용 PDF KSCI

AA STUDY ON ENERGY FLOW OF THE CROP GROWING SUB-SYSTEM IN GUANGDONG

  • Hu, Zemin
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1993.10a
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    • pp.611-616
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    • 1993

  • On the basis of the data collected from various fields , the energy input output state in the crop-growing sub-system in Guangdong is estimated and analyzed. Results show that the input of the artificial supplementary energy is approximately 201x105 Kcal/ha. year and the input and output ratio equals 1 : 4.73. Measures for improving productivity and speeding up the development of agricultural mechanization in Guangdong are eventually suggested.

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Present Status and Prospect of Crop Production Technology to Improve the Crop Quality and Functionality (고품질 및 기능성 증진을 위한 작물생산기술의 인구 현황과 전망)

  • Je-Cheon Chae
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47
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    • pp.1-14
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    • 2002

  • Development of crops with high quality as well as various beneficial functions is necessary to satisfy consumers being interested in their health and to enhance a competitiveness in the international market of agricultural products. What we have achieved so far from our research on crop quality was not sufficient since we often neglected sensory feature of crop products such as eating quality but in many cases, we put more emphases on nutrient contents, physico-chemical properties, and out-appearing features of the products. Therefore developments of sensory elements and technique for evaluation with a priority given to eating quality of each of an individual crop are important and very urgent to be solved in Korea. An endeavor to develop bioactive crops is necessary and resonable but aspects of both productivity and economy with a special emphasis on the original purposes such as production of energy and nutrient for human life must be considered. The development of more concrete ideas for crop functionality is essential before any research goes further.

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