Activity of a Vitamin B12 Concentrate for Chick Growth and Hatchability

Lindstrom, Russell G.; Moore, P. R.; Petersen, C. F.; Wiese, A. C.

doi:10.3382/ps.0280464

Cited by 23 publications

(6 citation statements)

References 4 publications

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“…The percent hatchability of fertile eggs for ten hatches is given in groups. Lindstrom et al (1949) found that 1.0 percent of a vitamin B12 concentrate improved hatchability but not to the level customarily obtained with fish meal supplements. In their battery the feed troughs were attached directly to the water troughs and it was observed that the hens spilled considerable feed into the adjoining trough.…”

Section: Resultsmentioning

confidence: 82%

The Effects of Vitamin B12 and Thyroprotein on Egg Production, Egg Weight, Shell Quality and Hatchability

et al. 1952

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Section: Resultsmentioning

confidence: 82%

The Effects of Vitamin B12 and Thyroprotein on Egg Production, Egg Weight, Shell Quality and Hatchability

et al. 1952

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“…The possibility that the birds secured vitamin Bi 2 from other sources, presumably from the litter and droppings, is indicated by the rate of hatchability in the pens receiving no vitamin B 12 . In none of the six hatches was hatchability of fertile eggs below 70%, whereas, Lindstrom et al (1949), Olcese and co-workers (1950), Couch and associates (1950), and Carver and McGinnis (1950) have presented evidence showing that the hatchability of eggs produced by birds which received an all-vegetable protein diet and did not have access to their feces decreased rapidly and in most instances was below 50% within four weeks. The amount of vitamin B i2 activity, as indicated by hatchability, observed in the present trial with rations containing no added vitamin B 12 was unexpectedly high in view of the results of Kennard et al (1948), who obtained only a 32% hatch on shavings litter changed at two-week intervals as compared with 78% on built-up litter.…”

Section: Discussionmentioning

confidence: 92%

Vitamin B12 in the Nutrition of the Laying Hen

Berg¹,

Bearse²,

McGinnis³

et al. 1952

Poultry Science

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“…The necessity of this vitamin for hatchability has been shown by Lillie et al (1949), Lindstrom et al (1949), Olcese et al (1950), , and Carver and McGinnis (1950). An indication that vitamin B 12 is required for egg production and egg weight was presented by Holmes and Kramer (1965), Griffith and Schexnailder (1972) and Savage et al (1952).…”

Section: Introductionmentioning

confidence: 91%

The Effect of Levels of Protein and Vitamin B12 in Hen Diets on Egg Production and Hatchability of Eggs and on Livability and Growth of Chicks

Patel

McGinnis

1977

Poultry Science

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The effects of feeding different levels of protein and vitamin B ]2 on egg production and hatchability of eggs of Single Comb White Leghorn hens were studied. Diets containing 16 and 32% corn-soybean meal protein with and without 10 |xg. of vitamin B 12 per kg. of diet were employed. Egg production and fertility of eggs were not significantly affected by protein level or vitamin B T2 supplement. However, increasing protein level in the hen diets resulted in a significant decrease in hatchability. Vitamin B, 2 supplementation of both diets significantly improved hatchability of eggs. However, the supplementary vitamin B , 2 was not adequate to support desirable hatchability when the diet contained 32% protein.The high level of protein, and the addition of vitamin B l2 to the 16% protein diet significantly increased egg weight.Chicks hatched from eggs produced by hens fed the different experimental diets were used to study the effect of breeder diets on chick growth and livability. A deficiency of vitamin B , 2 in the breeder had a detrimental effect on chick growth and livability. Increasing the protein level of the chick diet from 22 to 32% resulted in a further decrease in growth when the chicks were derived from vitamin B, 2 deficient hens. A high level of protein in the breeder diet also depressed chick growth. This growth depression was not counteracted by a dietary supplement of 500 p.g. of vitamin B, 2 /kg., by an oral dose of 50 |xg. of vitamin B 12 /chick at hatching, or by an injection of 1 or 10 jj,g. of vitamin B, 2 / bird at hatching. Vitamin B 12 supplied through the hen diet was more effective than supplementation of chick diet in stimulating early chick growth. Mortality was higher in chicks hatched from hens fed the 16% protein diet than in those from hens fed 32% protein. This was the reverse of embryo mortality during incubation.

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Activity of a Vitamin B12 Concentrate for Chick Growth and Hatchability

Cited by 23 publications

References 4 publications

The Effects of Vitamin B12 and Thyroprotein on Egg Production, Egg Weight, Shell Quality and Hatchability

The Effects of Vitamin B12 and Thyroprotein on Egg Production, Egg Weight, Shell Quality and Hatchability

Vitamin B12 in the Nutrition of the Laying Hen

The Effect of Levels of Protein and Vitamin B12 in Hen Diets on Egg Production and Hatchability of Eggs and on Livability and Growth of Chicks

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