산란계의 선택 채식시 칼슘이 난각형성과 체내대사에 미치는 영향

Calcium Metabolism and Eggshell Formation in Laying Hens Fed Self-selected Feeds

  • 발행 : 1995.12.01

초록

This study was carried out to investigate the effects of diverse dietary Ca levels and to determine whether bone mineral metabolism is influenced by the arnount of dietary Ca when given a choice of diets containing various levels of Ca. Forty Hy-line brown laying hens housed in separate cages were fed self-selected Ca diets. Birds were allowed a 7-day adaptation period followed by an 8-day collection period. Feed and water were available for ad libitum consumption. Eggs and excreta were collected at 6-h intervals during the day for mineral analysis. The Ca contents in excreta and retained Ca in the body on egg forming day were proportional to the amount of daily Ca intake. The retained Ca in the body were 0.97 g in control and 1.24~1.74 g in self-selected groups, respectively. Daily Ca contents (%) in tibial cortex were not consistent with feeding time intervals. The Ca content in tibial medulla in control group was lower than those of self-selected feeding groups(P<.05). The medullary Ca content in all treatment groups increased from 10:00 to 16:00 in a day. Ca content in plasma was low between 10:00 and 16:00 and was high between 22:00 and 04:00 in the following day.

키워드

참고문헌

  1. Rural Development Administration's AGRISP program AGRISP
  2. Electron Microscopy v.2 The effect of mercury ingestion on the avian oviduct Baird,T.R.;Reid,J.;Kennedy,D.H.;Solomon,S.E.;Brederoo,P.(ed.);De Priester,W.(ed.)
  3. Poultry Sci. v.59 Urinary excretion of calcium in the presence or absence of shell formation by chickens producing thick or thin shells Buss,E.G.;Merkur,P.;Guyer,R.B.
  4. Poultry Sci. v.56 Egg shell quality : calcium metabolism in thick and thin shell genotypes Clagett,C.O.;Buss,E.G.;Tamaki,Y.
  5. Poultry Sci. v.71 Calcium and phosphorus Metabolism and eggshell formation of hens fed different amounts of calcium Clunies,M.D.;Leeson,S.
  6. Poultry Sci. v.71 Calcium and Phosphorus metabolism and eggshell thickness in laying hens producing thick or thin shells Clunies,M.D.;Park,O.O.;Leeson,S.
  7. Poultry Sci. v.109 Comar,C.L.;Driggers,G.C.
  8. Animal Naturalist v.69 A study individuality in the instincts, and of the canses and effects of variation in the selection of food Dove,W.F.
  9. Poultry Sci. v.70 The influence of various calcium and phosphorous levels on tibia strength and eggshell quality of pullets during peak production Frost,T.J.;Roland,D.A.
  10. Poultry Sci. v.13 Individuality of pullets in balancing the ration Graham,J.C.
  11. Poultry Sci. v.59 Calcium-binding proteins in serum : Quantitative differences between thick and thin shell lines of chickens Grunder,A.A.;Guyer,R.B.;Buss,E.G.;Clagett,C.O.
  12. Anim Biochem Biophys v.10 Blood pH and cation levels in relation to eggshell formation Hodges,R.D.
  13. Poultry Sci. v.54 The ability of hens to adjust calcium intake when given a choice of diets containing two levels of calcium Holcombe,D.J.;Roland,D.A.;Harms,R.G.
  14. Brit. Poultry Sci. v.13 A circadian rhythm of calcium intake in the domestic fowl Hughes,B.O.
  15. Poultry Sci. v.60 The influence of time of dietary calcium intake on shell quality Lennards,R.M.;Roland,D.A.
  16. British Poultry Sci. v.15 Voluntary food and calcium intake by the laying hen Mongin,P.;Saveur,B.
  17. Proc. Univ. of Florida Nutr. Conf. Mongin,P.
  18. Fed. Proc. v.28 no.6 Egg shell formation and bone resorption in laying hens Mueller,W.J.;Brubaker,R.L.
  19. Poultry Sci. v.69 Influence of Dietary Calcium and phosphorous on urinary calcium in commercial Leghorn hens Rao,K.S.;Roland,D.A.
  20. Brit. Poult Sci. v.16 Studies on the isthmus region of the domestic fowl Solomon,S.E.
  21. Poultry nutrition handbook Summers,J.D.;Leeson,S.
  22. Poultry Sci. v.59 Sensitivity of various bone parameters of laying hens to different daily calcium intakes Thim,G.N.;Coon,G.N.
  23. J. Agr. Sci. v.32 Calcium and phosphorus balances with laying birds Tyler,C.;Wilcox,G.S.