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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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This experiment was conducted to investigate the effects of varying levels of metabolizable energy (ME) and crude protein (CP) on growth performance and carcass characteristics in layer-type growing male chicks. Nine hundred 1-d-old Hy-Line Brown male chicks were randomly allocated to 30 pens in a 2×3 factorial design. The experimental diets contained 2 levels of ME (2,800 kcal/kg and 2,950 kcal/kg) in combination with 3 levels of CP (17%, 18.5%, and, 20%). A significant interaction of ME and CP on feed intake was observed (p<0.05). No interaction was observed between ME and CP for 53 d BW gain or FCR, which improved linearly with dietary CP levels (p<0.05). A significant interaction or tendency was observed between ME and CP levels. The intake of ME for 1 g BW gain was linearly decreased with increasing CP levels (p<0.001). The intake of CP per bird was significantly increased in low ME (2,800 kcal/kg) treatment than that of the high ME treatment (2,950 kcal/kg) (p<0.05), and dietary CP level had more influence on CP intake for gram BW gain than level of ME. The relative weights of liver, spleen, breast meat and, leg were not influenced by the dietary treatments. Serum BUN, albumin, creatinine, and the activities of GOT and GPT were not influenced significantly by the diet treatment. In conclusion, the growth performance in layer-type male chicks was linearly increased when the level of dietary CP increased. The ME and CP did not affect the carcass characteristics and blood profiles. Therefore, the optimum levels of dietary ME and CP to improve the growth were 2,800 kcal/kg and above 18.5% in layer-type growing male chicks, respectively.
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참고문헌 (24)
참고문헌 신청
1. [학술지(정기간행물)] - Bokkers EAM / 2003 / Eating behavior, and preprandial and postparndial correlations in male broiler and layer chickens / Br Poult Sci 44 : 538 ~ 544
2. [학술지(정기간행물)] - Corzo A / 2005 / Dietary amino acid density effects on growth and carcass of broilers differing in strain cross and sex / J Appl Poult Res 14 : 1 ~ 9
3. [학술지(정기간행물)] - Dozier WAⅢ / 2006 / Growth performance, meat yield, and economic responses of broilers fed diets varying in metabolizable energy from thirty to fifty-nine days of age / J Appl Poult Res 15 : 367 ~ 382
4. [학술지(정기간행물)] - Ellendorff F / 2003 / Current knowledge on sex determination and sex diagnosis: potential solution / World Poult Sci J 59 : 5 ~ 64
5. [학술지(정기간행물)] - Ghazanfari S / 2010 / Effect of feed restriction and different energy and protein levels of the diet on growth performance and growth hormone in broiler chickens / J Biol Sci 10 : 25 ~ 30
2. [학술지(정기간행물)] - Corzo A / 2005 / Dietary amino acid density effects on growth and carcass of broilers differing in strain cross and sex / J Appl Poult Res 14 : 1 ~ 9
3. [학술지(정기간행물)] - Dozier WAⅢ / 2006 / Growth performance, meat yield, and economic responses of broilers fed diets varying in metabolizable energy from thirty to fifty-nine days of age / J Appl Poult Res 15 : 367 ~ 382
4. [학술지(정기간행물)] - Ellendorff F / 2003 / Current knowledge on sex determination and sex diagnosis: potential solution / World Poult Sci J 59 : 5 ~ 64
5. [학술지(정기간행물)] - Ghazanfari S / 2010 / Effect of feed restriction and different energy and protein levels of the diet on growth performance and growth hormone in broiler chickens / J Biol Sci 10 : 25 ~ 30
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UCI(KEPA) : I410-ECN-0101-2013-527-002670623