Improved in vitro methods for determining limestone and oyster shell solubility

Journal of Applied Poultry Research

Volumn 6, Issue 1, 1997, Pages 94-99

  Zhang, Bingfan ^a   Coon, Craig N ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

Author keywords

In vitro solubility method; Limestone; Oyster shell

Indexed keywords

OSTREIDAE;

EID: 0031483380     PISSN: 10566171     EISSN: None     Source Type: Journal    
DOI: 10.1093/japr/6.1.94     Document Type: Article

References (12)

1. Cheng, T.K. and C.N. Coon, 1990. Effect of calcium source, particle size, limestone solubility in vitro, and calcium intake level on layer bone status and performance. Poultry Sci. 69:2214-2219.
2. Scott, M.L., S.J. Hull, and P.A. Mullenhoff, 1971. The calcium requirements of laying hens and effects of dietary oyster shell upon eggshell quality. Poultry Sci. 50:1055-1063.
3. Brister, R.D., Jr., S.S. Linton, and C.R. Creger, 1981. Effect of dietary calcium sources and particle size on laying hen performance. Poultry Sci. 60:2648-2654.
4. Keshavarz, K. and C.C. McCormick, 1991. Effect of sodium aluminosilicate, oyster shell, and their combinations on acid-base balance and eggshell quality. Poultry Sci. 70:313-325.
5. Rao, K-S. and D.A. Roland, 1989. Influence of dietary calcium level and particle size of calcium source on in vivo calcium solubilization by commercial Leghorns. Poultry Sci. 68:1499-1505.
6. Cheng, T.K. and C.N. Coon, 1990. Comparison of various in vitro methods for the determination of limestone solubility. Poultry Sci. 69:2204-2208.
7. Scott, M., 1991. How can calcium be supplied to high-producing hens? Feedstuffs 63(39):16-18.
8. Whatman Inc., 6 Just Road, Fairfield, NJ 07004 (Whatman ashless filter paper No. 41).
9. Orion Research, Inc., The Schrafft Center, 529 Main Street, Boston, MA 02129 (Orion digital ionalyzer/501: Electrode model 8155).
10. 2 as predictors. Data from both OS and LS were pooled for the analysis. Predictors were dropped from a model when corresponding coefficients were not different from zero (P>.05). Means were separated using the LSD (Least Significant Difference) method of the GLM (General Linear Model) procedure. Computations followed the Statistical Analysis Systems Institute, SAS/STAT User's Guide [11].
11. SAS Institute, 1988. SAS/STAT User's Guide. SAS Institute, Inc., Cary, NC.
12. Zhang, Bingfan, 1995. The relationship of calcium intake, source, particle size, solubility in vitro and in vivo, retention in gizzard of limestone, and calcium retention in laying hens. Chapter 3 in: Master of Science Thesis, University of Minnesota, St. Paul, MN.