Effects of Vitamin D3 and D3 Metabolites on Production Parameters and Hatchability of Eggs

Abdulrahim, S. M.; Patel, Meenakshi; McGinnis, James

doi:10.3382/ps.0580858

Cited by 24 publications

(11 citation statements)

References 22 publications

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“…The lack of improved performance agrees with some previous reports (Roland and Harms, 1976;Abdulrahim et al, 1979;Harms et al, 1988). However, the data in the present paper do not agree with other reports published previously (Charles and Ernst, 1974;Sunde, 1975;Mc-Loughlin and Soares, 1976;Polin and Ringer, 1977;Soares, 1979;Hamilton, 1980;Soares et al, 1988).…”

Section: Methodscontrasting

confidence: 59%

“…Several workers reported that adding a vitamin-D metabolite to the feed improved eggshell quality (Charles and Ernst, 1974;Sunde, 1975;McLoughlin and Soares, 1976;Polin and Ringer, 1977;Soares, 1979;Hamilton, 1980;Soares et al, 1988). However, other workers found no improvement in eggshell quality from the addition of vitamin D metabolites to the diet (Roland and Harms, 1976;Abdulrahim et al, 1979;Harms et al, 'Florida Agricultural Experiment Station, Journal Series Number 9641. 1988).…”

Section: Introductionmentioning

confidence: 92%

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Some Observations on the Influence of Vitamin D Metabolites When Added to the Diet of Commercial Laying Hens

et al. 1990

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Three experiments were conducted to study the influence of two vitamin D3 metabolites on the performance of commercial laying hens. In Experiment 1, adding of .75, 1.50, 3.00, and 4.50 micrograms of 1 alpha-hydroxycholecalciferol (1 alpha-OHD3) or of 1,25-dihydroxycholecalciferol [1,25-(OH)2D3] per kg to the diet containing 2,200 ICU of vitamin D3 from 55 micrograms of cholecalciferol per kg of diet resulted in increased plasma calcium (Ca) and phosphorus (P). The response was greater from the 1,25-(OH)2D3 metabolite than from the 1 alpha-OHD3 metabolite. Neither metabolite affected tibia breaking strength (TBS), egg production (EP), egg weight (EW), feed consumption (FC), feed conversion, eggshell quality (ESQ), fertility, or the hatchability of eggs or the tibia ash (TA) of the day-old chick. In Experiment 2, the EP, EW, FC, ESQ and TA of the hens were not affected when 1.5 micrograms of 1,25-(OH)2D3 were added to each kilogram of a corn-soybean meal diet containing either .38 or .43% P with adequate vitamin D3. Adding the 1,25(OH)2D3 metabolite to the low-P diet reduced plasma Ca and increased TBS. However, adding 1,25-(OH)2D3 to the high-P diet increased plasma Ca and P. In Experiment 3, the EP, ESQ, FC, and TA of the hens were significantly lower when the diet contained 2.04% Ca rather than 3.04% Ca. Plasma Ca and P, EW, or TBS were not affected by the dietary Ca. Neither the plasma Ca and P, EP, EW, ESQ nor the TBS and TA were influenced by adding the 1,25-(OH)2D3 metabolite to either diet.

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Section: Methodscontrasting

confidence: 59%

Section: Introductionmentioning

confidence: 92%

Some Observations on the Influence of Vitamin D Metabolites When Added to the Diet of Commercial Laying Hens

et al. 1990

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“…However, 'Scientific Article Number A-4590, Contribution Number 7586 of the Maryland Agricultural Experiment Station, Department of Poultry Science. Abdulrahim et al (1979) found no effect of la-OH-D 3 or l,25(OH) 2 D 3 on egg shell weight when fed to young hens. Bar and coworkers (Bar et al, 1984;Bar and Hurwitz, 1987) have shown that plasma l,25(OH) 2 D 3 was greater in laying hens with good egg shell quality and was reduced with age.…”

Section: Introductionmentioning

confidence: 79%

“…Although it has been previously reported that egg shell quality can be improved by feeding 25-hydroxycholecalciferol (25-OH-D 3 ) instead of cholecalciferol to laying hens (Charles and Ernest, 1974;Sunde, 1975;Roland and Harms, 1976;McLoughlin and Soares, 1976;Polin and Ringer 1977;Abdulrahim et al, 1979;Hamilton, 1980), the effectiveness of 25-OH-D 3 is controversial. Relatively few studies have evaluated the effects of the more active 1 hydroxylated vitamin D metabolites on egg shell quality.…”

Section: Introductionmentioning

confidence: 97%

Potential Role of 1,25 Dihydroxycholecalciferol in Egg Shell Calcification

1988

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Several experiments were conducted to determine if circulating 1,25 dihydroxycholecalciferol (l,25(OH) 2 D 3 ) concentrations correlated with the laying hens' ability to calcify egg shells. Total Ca and 1,25(OH) 2 D 3 concentrations in plasma of hens selected to produce high quality egg shells averaged greater than 34% of concentrations found in egg shells of the hens' counterparts producing poor quality egg shells. Immature female chickens had low (60 to 117 pg/mL) levels of circulating l,25(OH) 2 D 3 ; concentrations were similar for immature females later classified to be either poor or good egg shell calcifiers. However, differences in 1,25(OH) 2 D 3 concentrations became progressively greater with age in the two groups and reached statistical significance (P<.05) at 56 to 64 wk of age.Feeding la, hydroxycholecalciferol (la-OH-D 3 ) or D 3 to laying hens for 22 wk resulted in significantly improved egg shell quality (~ 7%) for those fed la-OH-D 3 . No differences in egg weight, egg production, or egg mass were observed. Tibial calcification and breaking strengths were significantly improved by feeding la-OH-D 3 . Hens producing eggs with superior egg shell quality have higher concentrations of circulating 1,25(OH) 2 D 3 than similar hens producing poor egg shells. Dietary supplementation of 1 hydroxylated vitamin D metabolites may be useful in improving egg shell quality. (

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“…However, the eggshell quality was determined in only six hens per treatment group. In a much larger study, Abdulrahim et al (1979) found no effect on eggshell quality in young laying hens fed 3 or 9 ug l,25-(OH)2D3/kg diet; at the higher dose, feed consumption decreased significantly and egg production decreased slightly. Addition of relatively low levels (1.5 to 4.5 ug/kg) of l,25-(OH) 2 D 3 to a normal layer diet containing cholecalciferol either had no effect or reduced feed consumption, egg weight (EW), and egg production Harms et al, 1988).…”

Section: Introductionmentioning

confidence: 84%

Optimal Dietary Level of 1α,25-Dihydroxycholecalciferol for Eggshell Quality in Laying Hens

1990

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The optimal dietary level of 1 alpha,25-dihydroxycholecalciferol [1,25-(OH)2D3] for eggshell quality was established. White Leghorn hens, 59 wk of age, were fed one of eight diets that contained the same basal ingredients, including 3.1% calcium, but different levels (microgram/kg) or forms of calciferol supplements: no calciferol supplement of any form (56 hens); 27.5 (control) or 55.0 micrograms of cholecalciferol (56 hens each); 3, 5, or 7 micrograms of 1,25-(OH)2D3 (28 hens each); 5 micrograms of 24,25-dihydroxycholecalciferol [24,25-(OH)2D3] with 28 hens; 5 micrograms each of 1,25-(OH)2D3 and 24,25-(OH)2D3 (28 hens). All groups were fed the control diet prior to the 21-wk treatment. The group fed 5 micrograms 1,25-(OH)2D3/kg diet ranked first in specific gravity (SG), e.g., 1.081 versus 1.077 for the control group at Week 21 (P less than .05). The group fed 7 micrograms 1,25-(OH)2D3/kg consumed 30% less feed and laid 20% fewer eggs than the control, but shell quality was not affected. The groups receiving no calciferol supplement or receiving only 24,25-(OH)2D3 laid eggs with significantly lower SG than the control after 2 wk of treatment (1.072 or less versus 1.082 at Week 2). The rest of the treatment groups mentioned were comparable to the control in eggshell quality and egg production. Groups fed the combination of 1,25-(OH)2D3 and 24,25-(OH)2D3 per kilogram of feed, or 1,25-(OH)2D3 alone at 5 micrograms/kg, had significantly higher tibial weights relative to the control group. All groups receiving the diets without cholecalciferol supplementation had markedly reduced hatchability. It was concluded that the optimal dietary level of 1,25-(OH)2D3 for improving eggshell quality without affecting egg production was approximately 5 micrograms/kg and the toxic level was 7 micrograms/kg.

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Effects of Vitamin D3 and D3 Metabolites on Production Parameters and Hatchability of Eggs

Cited by 24 publications

References 22 publications

Some Observations on the Influence of Vitamin D Metabolites When Added to the Diet of Commercial Laying Hens

Some Observations on the Influence of Vitamin D Metabolites When Added to the Diet of Commercial Laying Hens

Potential Role of 1,25 Dihydroxycholecalciferol in Egg Shell Calcification

Optimal Dietary Level of 1α,25-Dihydroxycholecalciferol for Eggshell Quality in Laying Hens

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