Effect of Organic Zinc on the Skin Characteristics of Broilers and the Expression Level of Skin Proteins

Kim, Ju Youn; Kim, Hyun Jin; Salim, H. M.; Lee, Bong Duk; Chae, Hyun-Seok; Song, Kyung Bin

doi:10.3746/jfn.2010.15.2.143

JFN

2010

DOI: 10.3746/jfn.2010.15.2.143

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Effect of Organic Zinc on the Skin Characteristics of Broilers and the Expression Level of Skin Proteins

Ju Youn Kim¹,

Hyun Jin Kim²,

H. M. Salim³

et al.

Abstract: Organic zinc was included in the diet of broiler chickens to examine its effect on the skin characteristics and the expression level of skin proteins. Broiler chicks (Ross×Ross) were fed a corn-wheat-soybean meal basal diet, either as control or containing an additional 80 ppm of zinc proteinate for 4 weeks, and then five broilers from each treatment were selected randomly, slaughtered, and their skin characteristics were examined. There were significant increases (p<0.05) in thigh skin epidermis and dermis th… Show more

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Cited by 7 publications

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Effect of dietary zinc proteinate supplementation on growth performance, and skin and meat quality of male and female broiler chicks

Salim

Lee

et al. 2012

British Poultry Science

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1. An experiment was conducted to evaluate the effect of dietary zinc proteinate (ZP) supplementation on growth performance and on skin and meat quality of male and female broiler chicks. 2. A total of 240 1-d-old male and 240 1-d-old female broiler chicks were randomly distributed into 24 floor pens (12 replicate pens/sex; 20 birds/pen) and were given either 0 (Control diet) or 40 mg/kg ZP (ZP 40), resulting in a 2 × 2 factorial arrangement of treatments. 3. The growth performance of male and female broiler chicks was not affected by the ZP supplementation, but the males showed significantly higher growth performance than did females. 4. ZP supplementation increased the total thickness of skin in both sexes, and males had thicker skin than females. It also increased the collagen content of skin, but not that of meat. Males had higher skin collagen contents than did females, but no sex difference was found in the meat collagen contents. 5. ZP supplementation did not affect the shear force values of skin and meat; however, males had higher shear force values of back skin than females. ZP supplementation increased the zinc contents of thigh meat and plasma in both sexes. Males had higher zinc contents in back skin than females. 6. It is concluded that dietary ZP supplementation could increase the skin quality of broiler chicks in both sexes, particularly in female broilers, without any effect on growth performance. Male broilers have better growth performance and skin quality than females.

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Effect of dietary zinc proteinate supplementation on growth performance, and skin and meat quality of male and female broiler chicks

Salim

Lee

et al. 2012

British Poultry Science

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The Hypocholesterolemic Effects of Soymilk Fermented with Bacillus subtilis Compared to Soymilk with Cheonggukjang Powder in Apolipoprotein E Knockout Mice

Seo¹,

Kim²,

Hong³

et al. 2010

JFN

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The cholesterol-lowering effects of soymilk fermented with Bacillus subtilis KCCM42923 were studied in apolipoprotein E knockout (ApoE KO) mice and compared to the cholesterol-lowering effects of soymilk to which cheonggukjang powder had been added. ApoE KO mice were divided into 3 groups (n=7/group). Animals were fed either an atherogenic diet only (AD, control group), an AD supplemented with fermented soymilk containing Corni fructus (FSM group), or an AD supplemented with soymilk to which cheonggukjang (CGJ) powder had been added at 5% (w/v) (CPS group) for 8 weeks. The amount of FSM or CPS supplementing the AD was 20.8 mL/kg BW. There were no differences in either body weight gain or organ weights among three groups. In the FSM group, the concentration of plasma total cholesterol (TC) and LDL cholesterol (LDLC) were significantly decreased by 26.2% and 30.3% compared with the values of the control group (p<0.05). However, the triglyceride (TG) and HDL-cholesterol (HDLC) levels were not affected. These beneficial effects of FSM on suppressing the increase in plasma cholesterol level by AD were greater than those of CPS, which revealed 15.4% and 16.4% inhibition for TC and LDLC, respectively. However, these differences between FSM and CPS groups were not significantly different. A preventative effect of FSM or CPS on the accumulation of hepatic TC, but not on TG, was observed. FSM and CPS did not demonstrate any effects on fecal lipid excretion. In conclusion, the cholesterol-lowering effects of the soymilk fermented with Bacillus subtilis KCCM42923 were comparable to CGJ powder-added soymilk. These results suggest that drinking FSM might provide beneficial effects on controlling plasma cholesterol levels.

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Effects of Red Ginseng Intake on Muscle Injury Due to Eccentric Exercise

Jung

Kim

Lee³

et al. 2010

JFN

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This study examined the effects of Korean red ginseng (RG) on muscle injury induced by eccentric exercise. Eighteen college male students were randomly assigned to either the RG group or the placebo group (P). The RG group ingested RG extract at 20 g/day (mixed with 200 mL of water) for 7 days prior to performing a downhill treadmill exercise and for 3 days after performing the downhill treadmill exercise, while the P group ingested 200 mL of water containing Agastachis Herba for 7 days prior to and 3 days following a downhill treadmill exercise. All subjects performed 2 bouts of a downhill treadmill exercise (6 km, -14 degree slope, 12 km/hr speed) with a 5 minute resting interval between bouts. Blood samples were drawn immediately before and after exercise, and at 1 hr, 24 hr, 48 hr, and 72 hr. Two-way repeated ANOVA documented that creatine kinase (CK) levels in the RG group were significantly reduced at 48 hr after exercise, as compared with P group, and remained constant until 72 hr after exercise. Lactate levels in the RG group were also significantly lower at 24 hr and 72 hr after exercise as compared to the P group. We conclude that supplementation of RGreduces CK levels and may prevent muscle injury induced by eccentric exercise.

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Effect of Organic Zinc on the Skin Characteristics of Broilers and the Expression Level of Skin Proteins

Cited by 7 publications

References 13 publications

Effect of dietary zinc proteinate supplementation on growth performance, and skin and meat quality of male and female broiler chicks

Effect of dietary zinc proteinate supplementation on growth performance, and skin and meat quality of male and female broiler chicks

The Hypocholesterolemic Effects of Soymilk Fermented with Bacillus subtilis Compared to Soymilk with Cheonggukjang Powder in Apolipoprotein E Knockout Mice

Effects of Red Ginseng Intake on Muscle Injury Due to Eccentric Exercise

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