Availability of Phosphorus from Various Phosphate Materials for Chicks

Miller, M. W.; Joukovsky, V. V.

doi:10.3382/ps.0320078

Cited by 38 publications

(13 citation statements)

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“…The results indicated that the minimum calcium requirements were .48% for maximum growth and .58% for optimal tibia ash content. In other words, the daily requirements were .29 g and .36 g, respectively, agreeing with the findings of Miller and Joukovsky (1953), White-Stevens et al (1960), Formica et al (1962), and Edwards et al (1963) that the calcium requirement for maximum tibia ash content was higher than that for growth in chick. In studies with White Pekin ducklings, Dean et al (1967) noted that the optimal calcium level for maximum weight gain, feed utilization, and normal bone ash values was obtained when the ration contained .56% calcium, which was similar to the value obtained in this experiment for obtaining optimal tibia ash in mule ducklings.…”

Section: Resultssupporting

confidence: 88%

Studies on Duck Nutrition. II. Calcium and Phosphorus Requirements of Mule Ducklings

Lin

Shen

1979

Poultry Science

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Experiments were conducted to determine calcium and phosphorus requirements of mule ducklings. Two-day-old, straight-run mule ducklings were fed diets containing graded levels of calcium or phosphorus for three weeks. Weight gain, feed consumption, tibia ash content, and levels of serum calcium and phosphorus were used as criteria for the determination of the optimum dietary calcium and phosphorus levels required by the ducklings. The minimum calcium requirements were .48% and .58%, respectively, for maximum growth and optimum tibia ash content as determined by regression analysis of body weight gain and tibia ash content against calcium level in the diet. The minimum available phosphorus requirements were .26% and .34%, respectively, for maximum body weight gain and optimum tibia ash content as determined by the same method.

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Section: Resultssupporting

confidence: 88%

Studies on Duck Nutrition. II. Calcium and Phosphorus Requirements of Mule Ducklings

Lin

Shen

1979

Poultry Science

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“…Steenbock and Bunkfeldt (1951) arrived at a similar conclusion in work with rats. This is also borne out in chicks by the observation of Gerry et al (1947), Miller and Joukovsky (1953), Grau and Zweigart (1953) and others, that certain phosphorus supplements may improve bone ash without benefiting growth. Experiment 2.…”

mentioning

confidence: 84%

Effect of Aureomycin on the Calcium and Phosphorus Requirements of Chicks and Poults

Lindblad¹,

Slinger²,

Motzok³

1954

Poultry Science

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“…A few alternative P sources such as rock phosphate (RP), bonemeal (BM) and commercial mineral mixtures (CMM) are available at a relatively low price compared to DCP. However, the performance of birds on these alternative P sources varies greatly (Gerry et al, 1949;Miller and Joukovsky, 1953;Camps, 1982Camps, ,1985Said et al, 1979;Senkoylu, 1983) probably because of large variations in the fluorine (F) content (205 to 5540 mg/kg) of the diets based on these alternative P sources.…”

Section: Introductionmentioning

confidence: 99%

Utilisation of different phosphorus sources in relation to their fluorine content for broilers and layers

Rao¹,

Reddy²

2001

British Poultry Science

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1. The relative utilisation of different phosphorus sources in relation to their fluorine (F) content was studied in commercial broilers (5 to 40 d) and White Leghorn layers (252 to 364 d). The phosphorus (P) sources tested were bonemeal (BM), low fluorine (LFRP) and high fluorine (HFRP) rock phosphates and a commercial mineral mixture (CMM). The P sources were incorporated in broiler and layer diets by replacing dicalcium phosphate (DCP) on a P basis. 2. The F contents of diets based on BM, LFRP, CMM and HFRP were 53, 365, 622 and 1383 mg/kg in the broiler experiment and 34, 242, 437 and 967 mg/kg in the layer experiment, respectively. F was not detected in DCP based diets. 3. In broilers, body weight gain, food intake, gain: food, P retention and serum inorganic P content on P sources (BM and LFRP) containing F up to 365 mg/kg diet were similar to those on DCP. Body weight gain, food intake, serum calcium and inorganic P contents and retention of P were depressed in groups fed on CMM and HFRP, which may have been due to the toxic effects of F (622 and 1383 mg/kg) present in diets based on these P sources. 4. Bone ash and its P content were not affected by feeding diets containing F up to 1383 mg/kg from various P sources. The amount of F deposited in tibia increased significantly with increases in dietary F concentration. 5. In layers, egg production and food intake were not affected by F up to 437 mg/kg in diets containing BM, LFRP or CMM as the sole source of supplemental P. Egg production and food intake were depressed significantly in layers given the diet containing 967 mg F/kg from HFRP. 6. Egg mass: food, egg weight, shell quality (shell thickness and shell weight) and serum calcium and inorganic P levels were not affected by F up to 967 mg/kg in diets containing different P sources. 7. It may be concluded that the performance of broilers and layers was not affected by feeding various P supplements with dietary levels of F up to 365 and 437 mg/kg, respectively. The reduced performance in broilers and layers observed with some of the P sources may have been due to poor availability of P and/or toxic effects of F (622 and 967 mg/kg, respectively).

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Availability of Phosphorus from Various Phosphate Materials for Chicks

Cited by 38 publications

References 4 publications

Studies on Duck Nutrition. II. Calcium and Phosphorus Requirements of Mule Ducklings

Studies on Duck Nutrition. II. Calcium and Phosphorus Requirements of Mule Ducklings

Effect of Aureomycin on the Calcium and Phosphorus Requirements of Chicks and Poults

Utilisation of different phosphorus sources in relation to their fluorine content for broilers and layers

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