Effect of Vitamin A on Growth, Egg Production and Reproduction of Japanese Quail

Shellenberger, T. E.; Lee, Jean M.

doi:10.3382/ps.0450708

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…On the other hand, there were no significant differences in the remainder of the experiment periods compared to the control. Matching to Shellenberger and Lee (1965) reported that Japanese quail did not show growth responses to VIT A supplementation in the low or high energy diets at levels of 550 to 4400 units/kg. Furthermore, Quail chicks fed basal diet with 1500 and 3000 IU of vitamin D had significantly greater (P≤0.01) BWG compared to the control group during 7-42d of age.…”

Section: Body Weight Gainmentioning

confidence: 96%

Growth Performance and Carcass Traits of Japanese Quail as Affected by Dietary High Dietary Vitamin a and D3 Supplementation Doses.

Metwally

Noura

El-Kelawy

2021

Egyptian Journal of Nutrition and Feeds

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total number of one hundred eighty unsexed seven-days-old quails were used in present study in a 2 × 3 factorial arrangement (2 levels of vitamin A, 0 and 40,000 IU/kg feed) and three levels of vitamin D3 (0, 1500 and 3000 ICU/kg feed). Chicks were randomly divided into six equal treatments of three replicates of ten quails each. Results showed that vitamin A affects significantly (P<0.05) on body weight (BW) at 28 and 35days of age. The highest level of vitamin A (40,000 IU) achieved an increase in BW. Also, vitamin D affects significantly (P<0.05) BW at 42 days of age. The highest levels of both vitamin A and D3(40,000 IU vitamin A and 3000 ICU vitamin D3) in treatment 6 achieved the heights BW compared to control treatment. Vitamin A affects significantly (P<0.05) body weight gain (BWG) during the period from 7-28 and 7-42days of age. The highest level of vitamin A (40,000 IU) achieved an increase in BWG. However, vitamin D affects significantly (P<0.05) on BWG during the period from 7-42 days of age. Vitamin A affects significantly (P<0.05) on feed consumption during (14-21), (21-28), (28-35), and (35-42) days of age. Vitamin A affect significantly (P<0.05) on feed conversion ratio (FCR) during the period from 7-35 and 7-42 days of age. Vitamin D3 affects significant (P>0.05) on FCR during the period from 7-14, 7-21 ,7-28 ,7-35, and 7-42 days of age. The highest levels of both vitamin A and D3(40,000 IU vitamin A and 3000 ICU of vitamin D3/kg) achieved the best values of both BW and BWG compared to control group. Vitamin A didn't affect significantly on carcass characteristics, but vitamin D3 affects significantly on gizzard weight and the highest levels of vitamin D3 (1500 and 3000 ICU /kg feed) achieved a decrease in gizzard weight. Also, the level of 3000 ICU achieved increase in carcass constituents.It can be concluded that the level of 40000 IU vitamin A/kg achieved the highest values of both body weight and body weight gain. The addition of 3000 ICU of vitamin D3/kg feed improved FCR. Therefore, the results of this study show the improvement of growth performance and carcass traits in Japanese quail, especially at the level of 40000 IU vitamin A/kg or 3000 IU/kg of vitamin D3/kg.

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Section: Body Weight Gainmentioning

confidence: 96%

Growth Performance and Carcass Traits of Japanese Quail as Affected by Dietary High Dietary Vitamin a and D3 Supplementation Doses.

Metwally

Noura

El-Kelawy

2021

Egyptian Journal of Nutrition and Feeds

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“…The level of vitamin A for normal hatchability was about 3300 units/kg. diet (Shellenberger and Lee, 1966). Shellenberger and Lee, (1966) used diets containing 5 per cent fish meal in their studies on vitamin A requirements.…”

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confidence: 99%

A Review of the Nutrition of Japanese Quail

Shim

Vohra

1971

World's Poultry Science Journal

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Effects of vitamin A deficiency on the pituitary‐gonad axis of the California quail, Lophortyx californicus

Fletcher

1971

J. Exp. Zool.

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Vitamin A deficiency results in a decrease in number of large basophils (presumed gonadotropes) in male Lophortyx californicus and a decrease in large basophil cell diameters in females. Decrease in functional activity (as judged by number and size) of this cell type may be partially responsible for the observed effects of vitamin A deficiency on reproduction. Gonads of nondeficient birds respond positively to gonadotropins. The testes of vitamin Adeficient birds produce androgens, but spermatogenesis was subnormal. The hormone-producing component of ovaries of vitamin Adeficient birds responds to gonadotropins, but follicular development does not occur. Vitamin A deficiency in the California Quail appears to act both at the pituitary (and/or hype thalamic) level and at the gonadal level to result in decreased reproductive competence, Study of the effect of vitamin A on bird reproduction has been restricted to galliforms of economic importance. The general effects of vitamin A deficiency in these species include reduced egg production, decreased hatchability of eggs, and impairment of spermatogenesis (see most recently: Reid et al., '65; Shellenberger and Lee, '66). In California Quail vitamin A deficiency also results in decreased egg production and impaired spermatogenesis; however, hatchability was not affected.The manner in which vitamin A deficiency reduces reproductive competence has not been elucidated. In the generally accepted scheme of avian reproduction, the hypothalamus, when properly stimulated, produces factors resulting in the production and release of gonadotropins by the hypophysis. The hypophysial gonadotropins, in turn, induce gonadal maturation. Vitamin A deficiency could act at the hypothalamic and/or hypophysial level to result in decreased production and secretion of gonadotropins. Vitamin A deficiency could also act at the gonadal level, preventing the gonad from responding to gonadotropins. The present experiments were carried out to increase the understanding of the effects of vitamin A deficiency of pituitary cytology and on the response of gonads to gonadotropins.

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Effect of Vitamin A on Growth, Egg Production and Reproduction of Japanese Quail

Cited by 8 publications

References 4 publications

Growth Performance and Carcass Traits of Japanese Quail as Affected by Dietary High Dietary Vitamin a and D3 Supplementation Doses.

Growth Performance and Carcass Traits of Japanese Quail as Affected by Dietary High Dietary Vitamin a and D3 Supplementation Doses.

A Review of the Nutrition of Japanese Quail

Effects of vitamin A deficiency on the pituitary‐gonad axis of the California quail, Lophortyx californicus

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