Estimation of Serum Vitamin A Level by Color Change of Pupil in Japanese Black Cattle

Shuqing HAN; Naoshi KONDO; Yuichi OGAWA; Shoichi MANO; Yoshie TAKAO; Shinya TANIGAWA; Moriyuki FUKUSHIMA; Osamu WATANABE; Namiko KOHAMA; Hyeon Tae KIM; Tateshi FUJIURA

doi:10.11165/eaef.6.177

Research Paper

Estimation of Serum Vitamin A Level by Color Change of Pupil in Japanese Black Cattle

Shuqing HAN , Naoshi KONDO, Yuichi OGAWA, Shoichi MANO, Yoshie TAKAO, Shinya TANIGAWA, Moriyuki FUKUSHIMA, Osamu WATANABE, Namiko KOHAMA, Hyeon Tae KIM, Tateshi FUJIURA

Author information

Shuqing HAN Corresponding author
Kyoto University
Naoshi KONDO
Kyoto University
Yuichi OGAWA
Kyoto University
Shoichi MANO
Yoshie TAKAO
Kyoto University
Shinya TANIGAWA
Kyoto University
Moriyuki FUKUSHIMA
Hyogo Prefectural Hokubu Agricultural Institute
Osamu WATANABE
Hyogo Prefectural Hokubu Agricultural Institute
Namiko KOHAMA
Hyogo Prefectural Hokubu Agricultural Institute
Hyeon Tae KIM
Gyeongsang National University
Tateshi FUJIURA
Kyoto University

Keywords: serum vitamin A, Japanese black cattle, 2CCD camera, tapetum, pupil color, beef quality

JOURNAL FREE ACCESS

2013 Volume 6 Issue 4 Pages 177-183

DOI https://doi.org/10.11165/eaef.6.177

Details

Abstract

Color change of pupil area was investigated in Red, Green, Blue (RGB) and Hue, Saturation, Intensity (HSI) color models from July to November in 2010 and from May to December in 2011 to estimate the serum vitamin A level of Japanese black cattle during their vitamin A controlled stage. A 2CCD camera was used to acquire the eye images. The results showed lower vitamin A level cattle usually accompanied with higher red component value, lower saturation in their eye images. An estimation model was built based on red and green component ratio. The estimation error is about 10 IU/dL. The reasonable result shows the feasibility to estimate the vitamin A level by color change of pupil area in Japanese black cattle.

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