[논문]LED 점등 세기가 젖소의 생산성, 혈액 매개변수 및 면역 반응에 미치는 영향

박진룡; 샤메드; 나종삼; 심관섭

doi:10.11625/kjoa.2019.27.2.161

[국내논문] LED 점등 세기가 젖소의 생산성, 혈액 매개변수 및 면역 반응에 미치는 영향
Effect of LED Lighting Intensity on Productivity, Blood Parameters and Immune Responses in Dairy Cows 원문보기

韓國有機農業學會誌 = Korean journal of organic agriculture, v.27 no.2, 2019년, pp.161 - 171

박진룡 (Department of Animal Biotechnology, Chonbuk National University) , 샤메드 (Department of Poultry Science, Sylhet Agricultural University) , 나종삼 (Department of Animal Biotechnology, Chonbuk National University) , 심관섭 (Department of Animal Biotechnology, Chonbuk National University)

Abstract ▼ AI-Helper

A light-emitting diode (LED) is most efficient in terms of economic benefits. The aim of the present study was to evaluate the effects of LED lighting intensity on milk production, milk composition, and the immune response of Holstein cows. Thirty-eight lactating cows were assigned to four experimental groups: control group (exposed natural daylight without LED light) and three LED treatment group (50 lux; natural daylight and 6 h LED light of 50 lux intensity, 100 lux; natural daylight and 6 h LED light of 100 lux intensity, 200 lux; natural daylight and 6 h LED light of 200 lux intensity). There was a significant effect on the decrease ratio in milk production in 200 lux group. Lactose was significantly increased in 100 lux than the other LED treated groups. In addition to the hemolytic biochemical analysis, AST and β-HB were significantly increased in the 50 lux than the other groups. Prolactin and IGF-1 levels were significantly increased in 200 lux compared to other groups. Besides, cortisol was significantly higher in 50 lux and lowered in the 200 lux than the control, while IgA and IgG were not significant among the groups. Therefore, it was concluded that LED lighting intensity had some impact on blood parameters and immune responses in dairy cows with increased milk production.

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문제 정의

, 2000), but it is proven that cows sight differs from human sight (Phillips and Weiguo, 1990). Therefore, the objective of this study was to evaluate the effect of LED lighting intensity on milk production, milk composition, blood parameters and immune responses of lactating Holstein cows.

제안 방법

In this study, we have measured the cortisol, IGF-1, prolactin and immunoglobulin levels such as IgA and IgG (Fig. 1 and Fig. 2). IgA and IgG were not significant among the groups (Fig.
The TMR moisture, crude protein, fat, ash and fiber were determined according to the procedures of AOAC (1990). The content of neutral detergent fiber (NDF) and acid detergent fiber (ADF) was analyzed by using an Ankom²⁰⁰⁰ Fiber Analyzer (Ankom Technology Corp., Macedon, NY, USA).
But two cows were excluded, because having treatment during the experiment period. Thirty eight lactating cows were assigned to four experimental groups: control group (exposed natural daylight without LED light) and three LED treatment group (50 lux; natural daylight and 6 h LED light of 50 lux intensity, 100 lux; natural daylight and 6 h LED light of 100 lux intensity, 200 lux; natural daylight and 6 h LED light of 200 lux intensity) (Table 1). This study was conducted from November 2017 to April 2018.

대상 데이터

The animals were obtained and maintained in the Gochang District, Jeollabuk Province, South Korea (35°25’ N, 126°41’ E).

데이터처리

All values were expressed as the means and standard errors of the mean (SEM) and the differences among the experimental groups were statistically evaluated by Analysis of Variance (ANOVA) procedures, followed by Duncan’s Multiple Range Test for post-hoc comparisons.

성능/효과

Light is an essential and powerful element to animals and birds. In conclusion, a higher intensity of 200 lux was increased milk production along with prolactin and IGF-1 levels. The increased level of IGF-1 might be related to high milk production.

참고문헌 (26)

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상세보기
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[국내논문] LED 점등 세기가 젖소의 생산성, 혈액 매개변수 및 면역 반응에 미치는 영향
Effect of LED Lighting Intensity on Productivity, Blood Parameters and Immune Responses in Dairy Cows 원문보기

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[국내논문] LED 점등 세기가 젖소의 생산성, 혈액 매개변수 및 면역 반응에 미치는 영향 Effect of LED Lighting Intensity on Productivity, Blood Parameters and Immune Responses in Dairy Cows 원문보기

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제안 방법

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성능/효과

참고문헌 (26)

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[국내논문] LED 점등 세기가 젖소의 생산성, 혈액 매개변수 및 면역 반응에 미치는 영향
Effect of LED Lighting Intensity on Productivity, Blood Parameters and Immune Responses in Dairy Cows 원문보기

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