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자료유형
학술저널
저자정보
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충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.44 No.4
발행연도
2017.12
수록면
574 - 585 (12page)

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This study was conducted to investigate effects of a potato byproduct on growth performance, blood metabolites, and carcass characteristics of Hanwoo steers. The palm oil coated potato byproduct was supplemented to the diet of Hanwoo steers to estimate the effect on growth performance, blood metabolites, and carcass characteristics during the late fattening period. Thirteen steers with initial body weight of control (676.8 ± 31.7 kg), treatment 1 (671.8 ± 46.2 kg) and treatment 2 (672.8 ± 31.1 kg) were used for 60 days, respectively. Average daily gain of steers in treatment 2 and control was greater than that in treastment 1 (p > 0.05). All steers in treatment 2 had a grade quality grading system than B in meat quantity and had a meat quality higher than the 1st grade. According to the physicochemical analysis of longissimus muscle, treatment 2 had high brightness resulting from high meat quality (p > 0.05), and a decrease in redness and yellowness is seen as a dilution effect due to muscle hypertrophy (p > 0.05). The fatty acid composition showed low levels of linoleic acid (p = 0.039) and arachidonic acid (p = 0.008) in treatment 2. This resulted in lower polyunsaturated fatty acid (PUFA) levels (p = 0.034). On the other hand, high levels of oleic acid resulted in high levels of MUFA (p > 0.05). These results indicate that potato byproduct had similar effects with β2-adrenergic agonist (β2-AA). And there was no negative effect on the intramuscular fat. In conclusion, palm oil coated potato byproduct could be potentially used as an alternative growth enhancer.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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