The Availability of Calcium in Calcium Salts and Minerals for Bone Formation in the Growing Chick

Bethke, R. M.; Kennard, D. C.; Kick, C. H.

doi:10.3382/ps.0090045

Cited by 19 publications

(5 citation statements)

References 2 publications

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“…The data reported herein suggest conclusions regarding the calcium requirement that are in substantial agreement with the earlier reports of Bethke et al (1929b) and Hart et al (1930), the conclusions reached in the reviews of Mitchell and McClure (1937) and Branion (1938) and the calcium requirement indicated by Vanderpopuliere et al (1961).…”

Section: Resultssupporting

confidence: 90%

Calcium and Phosphorus Requirements of Broiler Chickens

Twining¹,

Lillie²,

Robel³

et al. 1965

Poultry Science

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A FTER more than 35 years of investi->• gation, there is considerable disagreement in the literature as to the levels of calcium and phosphorus required for optimum performance of growing chickens. A review of the more pertinent literature by Lillie et al. (1964) indicates that the range of discordant values is being narrowed to some extent and that the calcium level recommended by the National Research Council is higher than that which many investigators found to be adequate for optimum growth. The majority of the recent investigations (Formica et al., 1961(Formica et al., , 1962Vanderpopuliere, 1961; Waldroup et al. 1962a, b;Simco and Stephenson, 1961;Lillie et al., 1964) have been aimed at refinement of the requirement of the growing chick in the light of current nutritional knowledge. Such was the motive for the experiment reported herein. EXPERIMENTAL A 5X4X2 factorial arrangement was employed in the design of the experiment. The three-factor design included five levels of total phosphorus (0.50, 0.55,0.60, 0.65, 0.70%), four levels of calcium (0,50, 0.60, 0.70, 0.80%) and two sexes (males and females reared separately). Sixty-four hundred sexed day-old VantressX Arbor Acres chicks were randomly distributed within sex into 20 groups of males and 20 groups of females. The 40 groups of 160 birds each were placed in individual floor

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Section: Resultssupporting

confidence: 90%

Calcium and Phosphorus Requirements of Broiler Chickens

Twining¹,

Lillie²,

Robel³

et al. 1965

Poultry Science

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“…Hart et al (1927) found that Niagara dolomite gave rates up to 16 weeks of age that were similar to those obtained with cracked marble. Deobald et al (1936) using dolomite added to the chicks diet at rates equivalent to 2% calcium carbonate obtained results similar to those of Bethke et al (1929). Deobald et al (1936) using dolomite added to the chicks diet at rates equivalent to 2% calcium carbonate obtained results similar to those of Bethke et al (1929).…”

mentioning

confidence: 55%

The Use of High Magnesium Limestone in the Diet of the Laying Hen

Stillmak

Sunde

1971

Poultry Science

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“…Such a difference may be unimportant when dietary calcium slightly exceeds the minimum requirement level. This may also explain the lack of difference between calcium sulfate and calcium carbonate in their effect on chick performance, reported by the early investigators (Bethke et al, 1930;Buckner and Martin, 1928).…”

Section: Discussionmentioning

confidence: 88%

“…Those early investigations indicated similar calcium availability from calcium sulfate and calcium carbonate, for chick growth and bone calcification (Buckner and Martin, 1928;Bethke et al, 1930;Deobald et al, 1936). On the other hand, calcium sulfate is considered to be a somewhat inferior calcium supplement for laying hens when compared to calcium carbonate (Titus, 1963).…”

mentioning

confidence: 92%