• Title, Summary, Keyword: Broiler Chickens

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Effect of Full-Fat Flax, $\alpha$-Tocopherol and Selenium on Phagocytes Chemiluminescence of Broiler Chickens (아마종실과 $\alpha$-Tocopherol, 셀레늄 급여가 육계 혈액의 탐식세포로부터 생성되는 $O_{2}$-와 $H_{2}$ $O_{2}$ 에 의해 유도된 화학발광(chemiluminescence) 생성)

  • 안종남;채현석;김동운;권명상;박병성
    • Korean Journal of Poultry Science
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    • v.28 no.3
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    • pp.239-244
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    • 2001
  • To examine the effects of feed additives on the expression of Perpheral blood cell surface molecules, phagocytosis and antigen specific antibody formation, broilers were randomly assigned to T$_1$, T$_2$, T$_3$, and T$_4$ groups. T$_1$ group was fed diet without any additives for 13 weeks, T$_2$ was fed diet with full fat flax, T$_3$ was fed diet with full fat flax containing $\alpha$-tocopherol, and T$_4$ was fed diet with full-fat flax containing $\alpha$-tocopherol and selenium. Since 5 weeks feeding the data were examined by luminometer. After 2 weeks adminstration of different feeding, although all treated groups (T$_2$, T$_3$, and T$_4$,) showed slightly increased chemiluminescence (CL) responses than T$_1$, this result was not significant. After 4 weeks feeding there was no significant increase of CL in the Phagocytes like neutrophils and macrophages of T$_2$ group compared to T$_1$. But phagocytes from T$_3$ and T$_4$ group showed in creased $O_2$- (6%, 18% respectively) as well as $H_2O$$_2$ (9.5% and 10.9%, respectively) induced CL responses. After 8 weeks feeding there was more than 50% increase $O_2$- induced CL in T$_3$ and T$_4$ group, but $H_2O$$_2$ induced CL responses in T$_3$ and T$_4$ group was slightly increased (6.6% and 9.3%, respectively).

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Effect of Reverse Osmosis-treated Deep Sea Water Supplementation on the Quality Characteristics of Chicken Meat (역삼투 처리한 해양 심층수의 급여가 닭고기의 품질 특성에 미치는 영향)

  • Kang, Sun-Moon;Lee, Ik-Sun;Ohh, Sang-Jip;Kim, Gur-Yoo;Lee, Sung-Ki
    • Korean Journal of Poultry Science
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    • v.37 no.4
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    • pp.373-382
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    • 2010
  • This study was carried out to investigate the effect of reverse osmosis (RO)-treated deep sea water (DSW) supplementation on the quality characteristics of chicken breast meat. For 28 days, one-day-old broiler chicks (Ross 308) were divided into two groups and supplemented with either water (control) or RO-treated DSW (diluted with deionized water at 1:20 [RO-treated DSW:deionized water] ratio). The control group was fed on a basal diet containing 0.21% salt. Five birds were slaughtered on each group and breast meat from carcasses was stored at $4^{\circ}C$ for 9 days. The proximate composition, fatty acid composition, cholesterol content, mineral content, pH value, water-holding capacity and Warner-Bratzler shear force value were not affected by RO-treated DSW supplementation. At 6 day of storage, lipid oxidation (2-thiobarbituric acid reactive substances) was significantly higher in RO-treated DSW group than in the control (P<0.05). With regard to meat color, CIE $L^*$ value was significantly lower in RO-treated DSW group than in the control after 6 day of storage (P<0.05), whereas CIE $a^*$ and $b^*$ values were not significantly different between two groups during storage. Consequently, RO-treated DSW supplementation led to a darker color and reduced the lipid oxidation stability in chicken meat during storage. Therefore, these results may indicate that RO-treated DSW can not be used as drinking water of chickens because it negatively affects the quality of chicken meat.

Effects of extreme heat stress and continuous lighting on growth performance and blood lipid in broiler chickens (연속조명과 폭염 스트레스가 육계의 혈액지질 및 성장능력에 미치는 영향)

  • Park, Sang-Oh;Hwangbo, Jong;Ryu, Chae-Min;Yoon, Jae-Sung;Park, Byung-Sung;Kang, Hwan-Ku;Seo, Ok-Suk;Chae, Hyun-Seok;Choi, Hee-Chul;Choi, Yang-Ho
    • Journal of the Korean Applied Science and Technology
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    • v.30 no.1
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    • pp.78-87
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    • 2013
  • In this study, the effect of extreme heat diet on growth performance, lymphoid organ, blood immunoglobulin and cecum microflora change in broilers exposed to continuous lighting and extreme heat stress (EHS) was studied. Broilers raised under normal environment temperature ($25^{\circ}C$ or extreme heat stress temperature ($33{\pm}2^{\circ}C$, and consumed chow diet (CD) or extreme heat stress diet (EHSD). Five hundred Ross 308 day-old commercial broilers were arranged in a completely randomized block design of 5 treatment groups with 4 repetitions (25 heads per repetition pen). The broilers were divided into: T1 (normal environment+CD), T2 (EHS+CD), T3 (EHS+EHSD in which the tallow in CD was substituted by soy oil and contained 5% molasses), T4 (EHS+EHSD in which the tallow in CD was substituted by soy oil and contained 5% molasses, and 1.5 times more methionine and lysine than CD), and T5 (EHS+EHSD in which the tallow in CD was substituted by soy oil, contained 5% molasses, 1.5 times more methionine and lysine than CD, and 300ppm of vitamin C). The EHS significantly reduced the body weight gain and feed intake. The blood immunoglobulin, bursa of Fabricius, thymus, and spleen weight were significantly reduced when broilers were exposed to EHS. Compared to the normal environment temperature group, the cecum Lactobacillus sp. was low in the EHS treatment group, while Escherichia sp., Salmonella sp. and total aerobic bacteria in the EHS treatment group were high. A statistically significant difference was acknowledged between the treatment groups.