Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
권호 표지
DOI QR코드

DOI QR Code

The Effect of Early Chick Weight on Market-Weight in Korean Native Chickens

토종닭의 초기성장체중이 출하체중에 미치는 영향

  • Kim, Ki Gon (Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology) ;
  • Choi, Eun Sik (Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology) ;
  • Kwon, Jae Hyun (Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology) ;
  • Sohn, Sea Hwan (Department of Animal Science and Biotechnology, Gyeongnam National University of Science and Technology)
  • 김기곤 (경남과학기술대학교 동물생명과학과) ;
  • 최은식 (경남과학기술대학교 동물생명과학과) ;
  • 권재현 (경남과학기술대학교 동물생명과학과) ;
  • 손시환 (경남과학기술대학교 동물생명과학과)
  • Received : 2017.10.12
  • Accepted : 2017.12.16
  • Published : 2017.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was to investigate the effect of chick weight in the early growth period on market-weight of Korean native chickens (KNCs). We measured the body weights of 1,087 chickens (male 479, female 608) of 13 KNC strains at 1-84 days of age at two week intervals. The growth performance of the 13 KNC strains was investigated. Correlation coefficients among the weights of chickens in each growth period and regression of market-weight on early chick weights were analyzed. The results showed that the average body weight of 70-day-old KNCs was 1,962g: 2,154g and 1,819.7g for males and females, respectively. The equation for regression of body weight on age was estimated as $\hat{Y}=0.1347X^2+18.738X-40.134$ ($R^2=0.9418$). Using this regression equation, the duration required to attain a KNC market-weight of 2 kg was estimated as 71.8 days. All the correlation coefficients between early chick weight and market-weight were significantly positive. Although the correlation coefficients among the chick weights in each growth period decreased with increase in age interval, early growth weight had a significant effect on late growth performance. The correlation coefficient between market-weight at 70-days and chick weight at 1-day was estimated to be a low as 0.10-0.13. In the estimations of market-weight correlation coefficients, correlation coefficient and coefficient of determination were high in the female and male chicks after 28-days and 42-days of age, respectively. The results of the analysis of correlation and regression between early chick weight and market-weight of KNCs showed that market-weight could be predicted based on the weights of 28-day-old females and 42-day-old males.

본 연구는 토종닭에 있어 초기성장 단계의 체중들이 출하 체중에 미치는 영향을 살펴보고자 한 것이다. 공시닭으로는 국내 토종실용닭 13계통의 암수 1,087수를 대상으로 1일령부터 84일령까지 2주 간격으로 각 개체별 체중을 측정하여 이들의 성장능력을 조사하고, 측정 일령별 체중 간의 상관분석 및 출하체중에 대한 성장초기체중의 회귀분석을 수행하였다. 분석결과 본 시험에 공시된 토종닭의 70일령 평균 체중은 1,962 g이었고, 수컷은 2,154 g, 암컷은 1,819.7 g으로 나타났다. 성장일령에 따른 체중에 대한 회귀방정식은$\hat{Y}=0.1347X^2+18.738X-40.134$($R^2=0.9418$)로 추정되었고, 본 함수식을 이용한 토종닭의 2 kg 출하체중 도달일령은 71.8일로 예측되었다. 1일령부터 84일령까지 성장단계별 체중들 간의 상관계수는 모두 유의한 정(+)의 값을 보였고, 비록 체중 측정치 간의 기간이 증가할수록 상관계수가 낮아지긴 하였으나, 토종닭에 있어 초기성장이 후기성장에 유의한 영향을 미치는 것으로 나타났다. 70일령 출하체중과 발생체중과는 0.10~0.13 정도의 낮은 상관계수를 보이고 암컷의 경우 적어도 28일령 이후의 체중과 출하체중 간에, 수컷은 42일령이 후의 체중과 출하체중 간에 고도의 상관계수 및 높은 결정계수($R^2$)를 나타내었다. 따라서 토종닭의 성장초기체중들과 출하체중 간의 상관 및 회귀분석 결과 암컷의 경우 28일령, 수컷은 42일령 체중을 토대로 출하체중의 예측이 가능할 것으로 사료된다.

Keywords

References

  1. Bray DF, Iton EL 1962 The effect of egg weight on strain differences in embryonic and post-embryonic growth in the domestic fowl. Br Poult Sci 3:175-188. https://doi.org/10.1080/00071666208415472
  2. Choi ES, Bang MH, Kim KG, Kwon JH, Chung OY, Sohn SH 2017 Production performances and heterosis effects of Korean native chicken breed combinations by diallel crossing test. Korean J Poult Sci 44(2):123-134. https://doi.org/10.5536/KJPS.2017.44.2.123
  3. Cobb 500 2015 Broiler performance & nutrition supplement. L-2114-07 En. Cobb-Vantress. Com.
  4. Cunningham DL 2009 Cash flow estimates for contract broiler production in Georgia: A 20-year analysis. Accessed Sep. 2017. https://athenaeum.libs.uga.edu/xmlui/bitstream/handle/10724/12489/B1228.pdf?sequence=1%2520
  5. Deaton JW, McNaughton JL, Reece FN 1979 Relationship of initial chick weight to body weight of egg-type pullets. Poult Sci 58(4):960-962. https://doi.org/10.3382/ps.0580960
  6. Decuypere E 1979 Effect of incubation temperature patterns on morphological, physiological and reproduction criteria in Rhode Island Red birds. Agricultura 27:216-230.
  7. Gardiner EE 1973 Effects of egg weight on post hatching growth rate of broiler chicks. Can J Anim Sci 53:665-668. https://doi.org/10.4141/cjas73-104
  8. Godfrey GF, Williams C, Marshall CE 1953 The relative influence of egg size, age at sexual maturity and mature body weight on growth to twelve weeks of age. Poult Sci 32(3):496-500. https://doi.org/10.3382/ps.0320496
  9. Kosin IL, Abplanalp H, Gutierrez J, Carver JS 1952 The influence of egg size on subsequent early growth of the chick. Poult Sci 31(2):247-254. https://doi.org/10.3382/ps.0310247
  10. Lee MJ, Kim SH, Heo KN, Kim HK, Choi HC, Hong EC, Choo HJ, Kim CD 2013 The study on productivity of commercial Korea chickens for crossbred Korean native chickens. Korean J Poult Sci 40(4):291-297. https://doi.org/10.5536/KJPS.2013.40.4.291
  11. Lee MJ, Heo KN, Choi HC, Hong EC, Kim CD 2014 The performance test in crossbreds of Korean native chickens for the establishment of new lines. Korean J Poult Sci 41(1):39-44. https://doi.org/10.5536/KJPS.2014.41.1.39
  12. McLoughin L, Gous RM 1999 The effect of egg size on pre- and postnatal growth of broiler chickens. World Poult 15:34-38.
  13. Ministry of Agriculture, Food and Rural Affairs(MAFRA) 2016 Major Statistics of Agriculture, Livestock and Food. Issues 11-1543000-000128-12.
  14. Molenaar RM, Reijrink IAM, Meijerhof R, Van Den Brand H 2008 Relationship between hatchling length and weight on later productive performance in broilers. World's Poult Sci 64(4):599-604. https://doi.org/10.1017/S0043933908000226
  15. Ohh BK, Choi YH, Sohn SH, Lee MY 1985 Relationship of initial chick weight to body weight in broiler. Korean J Poult Sci 12(2):59-64.
  16. O'Neil JB 1955 Percentage size of chick at hatching and its relationship to growth and mortality. Poult Sci 34(4):761-764. https://doi.org/10.3382/ps.0340761
  17. Park MN, Hong EC, Kang BS, Kim HK, Seo BY, Choo HJ, Na SH, Seo OS, Han JY, Hwangbo J 2010 The study on production and performance of crossbred Korean native chickens. Korean J Poult Sci 37(4):347-354. https://doi.org/10.5536/KJPS.2010.37.4.347
  18. Powell HC, Bowman JC 1964 An estimate of maternal effects in early growth characteristics and their effects upon comparative tests of chicken varieties. Br Poult Sci 5(2):121-132. https://doi.org/10.1080/00071666408415524
  19. Proudfoot FG, Hulan HW 1981 The Influence of hatching egg size on the subsequent performance of broiler chickens. Poult Sci 60(10):2167-2170. https://doi.org/10.3382/ps.0602167
  20. Tahir M, Cervantes H, Farmer CW, Shim MY, Pesti GM 2011 Broiler performance, hatching egg, and age relationships of progeny from standard and dwarf broiler dams. Poult Sci 90(6):1364-1370. https://doi.org/10.3382/ps.2010-01165
  21. Tindell D, Morris DR 1964 The effects of egg weight on subsequent broiler performance. Poult Sci 43(3):534-539. https://doi.org/10.3382/ps.0430534
  22. Tona K, Onagbesan O, De Ketelaere B, Decuypere E, Bruggeman V 2004 Effects of age of broiler breeders on egg quality, hatchability, chick quality chick weight and chick post-hatch growth to 24 days. J Appl Poult Res 13:10-18. https://doi.org/10.1093/japr/13.1.10
  23. Whiting TS, Pesti GM 1984 Broiler performance and hatching egg weight to marketing weight relationships of progeny from standard and dwarf broiler dams. Poult Sci 63(3):425-429. https://doi.org/10.3382/ps.0630425
  24. Wiley WH 1950 The influence of egg weight on the pre-hatching and post-hatching growth rate in the fowl: II. Egg weight-chick weight ratios. Poult Sci 29(4):595-604. https://doi.org/10.3382/ps.0290595
  25. Willemsen H, Everaert N, Witters A, De Smit L, Debonne M, Verschuere F, Garain P, Berckmans D, Decuypere E, Bruggeman V 2008 Critical assessment of chick quality measurements as an indicator of post hatch performance. Poult Sci 87(11):2358-2366. https://doi.org/10.3382/ps.2008-00095
  26. Wilson HR 1991 Interrelationships of egg size, chick size, post hatching growth and hatchability. World's Poultry Sci 47(1):5-20. https://doi.org/10.1079/WPS19910002
  27. Wolanski NJ, Luiten EJ, Meijerhof R, Vereijken ALJ 2003 Yolk utilisation and chick length as parameters for embryo development. Avian Poult Biol Rev 15:233-234.