하절기 산란피크 육용종계 산란기의 에너지 공급체계가 산란능력과 경제성에 미치는 영향

Effect of Varying Energy Supply Series on Egg Production and Feed Cost of Broiler Breeders Peaked in Summer Season

  • 함영훈 (강원대학교 사료생산공학과) ;
  • 김상인 (강원대학교 사료생산공학) ;
  • 이규호 (강원대학교 사료생산공학과)
  • 발행 : 2003.06.01

초록

하절기에 산란피크기간의 대부분이 해당되는 육용종계 산란기의 적정 에너지공급체계를 구명하기 위하여 강원도 홍천군 북방면소재 홍천종계에서 케이지 사양형태의 로스 육용종계 400를 공시하여 2002년 4월부터 2003년 l월까지 40주간 (24∼64주령 ) Table 2 와 같은 4 가지 에너지공급체계 사양시험을 실시한 결과를 요약하면 다음과 같다. 1) 총 산란율, 종란 산란율, 평균난중 및 성계 생존율은 모두 처리간에 유의적인 차이가 인정되지 않았으나, 산란율은 l 일 에너지공급량이 많을수록 오히려 저하하는 경향을 보였다. 2) 사료요구율, ME 및 CP요구량과 사료비는 모두 l일 에너지공급량이 증대함에 따라서 증가하는 경향을 보였다 (P<0.05) 본 연구의 결과 l일 ME공급량을 24주령에 280kcal로부터 30∼34주령에 400kcal 까지 증가시키고 35주령 이후 380kcal를 공급한 Tl 처리가 가장 우수한 성적을 보였다.

This experiment was conducted to study the optimum energy feeding system for broiler breeders peaked in summer season with 400 caged hens of Ross strain. Four of energy supply series which were different in daily energy allotment during laying period were employed for 40 weeks from 24 to 64 weeks of age. All experimental diets were formulated to contain 2,750 kcal ME/kg with adjustments made in total feed allotment to provide the desired energy levels. Total consumption of the feed would provide 20 grams of protein, 4 grams of calcium and 0.35 grams of available phosphorus. There were no significant difference in hen-day egg production and average egg weight among the series of energy supply, but egg production showed a trend to decline as the level of energy allotment increased. Feed, ME and CP conversion and feed cost required per egg or per kg egg were significantly increased as the level of energy allotment increased(p<0.05). It was concluded that the Treatment 1, which supplied 280kcal ME per day at the age of 24 weeks and then increased the energy supply up to 400kcal ME per day at the peak period of 30∼34 weeks of age, was superior in all production parameters.

키워드

참고문헌

  1. Bomstein S, Hurwitz S, Lev Y 1979 The amino acid andenergy requirement of broiler breeder hens. Poultry Sci58: 104-116.
  2. Bomstein S, Lev Y 1982 The energy requirement of broilerbreeders during the pullet-layer transition period. Poultry Sci61:755-765.
  3. National Research Council 1994 Nutrient Requirement ofPoultry. 9th rev ed. National Academy Press. WashingtonDC.
  4. Pearson RA, Herron KM 1982 Effects of maternal energy andprotein intakes on the incidence of malformation and proteinintakes on the incidence of malformation and protein intakeson the incidence of malformation and malpositions of theembryo and time of death during incubation Brit Poultry Sci23:71.
  5. Scott ML 1977 A discussion of nutritional requirements ofbroiler breeder hens. Proc cornell Nutr Com Pages 28-32.
  6. Spratt RS, Bayley HS, McBride BW, Leeson S 1990 Energymetabolism of broiler breeder hens. 1. The partition of dailyenergy intake. Poultry Sci 69: 1339.
  7. Spratt RS, Leeson S 1987 Broiler breeder performance inresponse to diet protein and energy. Poultry Sci 66:683.
  8. Waldroup PW, Hazen KR 1976 A comparison of the dailyenergy needs of the normal and dwarf broiler breeder hen.Poultry Sci 55: 1383.
  9. 이규호, 한인규, 이상진, 강태홍, 김강식 1985 육용종계의 영양소 요구량에 관한 연구. 2. 육용종계의 단백질 요구량에 관한 연구. 한국축산학회지 27:169-175.
  10. 이규호, 이상진, 김영호 1988 육용종계 산란기의 에너지 요구량에 관한 연구. 한국영양사료학회지 12:141-146.