A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens

Englmaierová, M.; Skřivan, M.; Bubancová, I.

doi:10.17221/6941-cjas

Cited by 68 publications

(57 citation statements)

References 17 publications

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“…The results are in agreement with the findings of Englmaierova et al (2013) who reported that feeding diets supplemented with synthetic carotenoids such as lutein significantly increased the egg production of Isa Brown hens. Moreover Hasanuzzaman et al (2012) detected higher egg production and egg weight in the treatment groups of layers fed with diets of 6.5% and 13% sea buckthorn cake compared to the control group of layers.…”

Section: Resultssupporting

confidence: 92%

“…Also, the mortality reasons (diseases of the genitals, metabolic disorders and cannibalism) of the hens were not affected by diet with 5% sea buckthorn fruit residues. These results are in concordance with the study of Englmaierova et al (2013) who indicated that Isa Brown hens that were fed diets supplemented with synthetic carotenoids such as lutein did not differ in terms of mortality (%) compared with the control group. Moreover, Hasanuzzaman et al (2012) reported that the mortality of birds was not affected by different levels of sea buckthorn.…”

Section: Resultssupporting

confidence: 92%

“…Moreover, the average live weight at the end of the laying period was not significantly different in the control group compared with the experimental group of hens, which is in agreement with the finding of Hasanuzzaman et al (2012) who reported a non-significant effect on feed consumption and feed conversion ratio when used at 10% and 20% CP of control feed replaced with CP of sea buckthorn (H. rhamnoides L.) cake. Additionally, Englmaierova et al (2013) did not find any effect of fed diets supplemented with synthetic carotenoids such as lutein on feed intake (g/day/hen), feed intake (g/egg) and feed conversion ratio.…”

Section: Resultsmentioning

confidence: 74%

“…On the contrary, Englmaierova et al (2013) reported that Isa Brown hens fed diets supplemented with synthetic carotenoids such as lutein had significantly increased egg weight. However, the results obtained in the present study confirm the earlier finding by Hasanuzzaman et al (2012);Yang (2009) who reported that the egg weight difference was found to be non-significant among all treatment groups of laying hens' diets with different levels of sea buckthorn at 28th and 32th weeks of age.…”

Section: P-valuementioning

confidence: 94%

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The effect of sea buckthorn (Hippophae rhamnoides L.) fruit residues on performance and egg quality of laying hens

Shaker

Al-Beitawi

Bláha

et al. 2017

Journal of Applied Animal Research

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The experiment was conducted on Isa Brown laying hens to study the effects of sea buckthorn fruit residues on hen performance and quality of eggs. The total number of 1440 eighteen-week-old pullets Isa Brown was divided into two groups (720 each) including 24 subgroups (30 hens). The experimental group was fed diets in which 5% of the wheat was replaced by sea buckthorn fruit residues. The control group was fed diets without any colour additives. Egg production and intensity of laying hens were evaluated in seven periods, from 127 to 322 days of age. In our study, a significant effect (P ≤ .05) of sea buckthorn fruit residues on total number of laid eggs and egg yolk colour was detected. However, a non-significant effect of sea buckthorn was found on hen performance or egg quality including egg weight, yolk weight, eggshell strength, shape index of egg, eggshell thickness, Haugh units, eggshell colour and blood spot, albumen weight, proportion and Haugh units. Results of our study showed the beneficial effect of feeding sea buckthorn fruit residues on total number of laid eggs and egg yolk colour which is a great concern for egg consumers.ARTICLE HISTORY

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 74%

Section: P-valuementioning

confidence: 94%

See 2 more Smart Citations

The effect of sea buckthorn (Hippophae rhamnoides L.) fruit residues on performance and egg quality of laying hens

Shaker

Al-Beitawi

Bláha

et al. 2017

Journal of Applied Animal Research

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“…After completing the physical measurements, shells were analyzed for calcium, phosphorus, magnesium, and zinc content. Calcium and phosphorus were determined by a method described by Englmaierova et al (2013). AOAC (2005) procedures were used to determine CP, magnesium, and zinc in feed mixtures and egg shells.…”

Section: Methodsmentioning

confidence: 99%

Effect of hen age, environmental temperature, and oviposition time on egg shell quality and egg shell and serum mineral contents in laying and broiler breeder hens

Tůmová¹,

Gous²,

Tyler³

2014

CZECH J ANIM SCI

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ABSTRACT:The aim of the study was to evaluate egg shell quality characteristics, mineral content in the egg shell, and serum mineral concentration during the egg formation process as influenced by oviposition time and ambient temperature at the beginning and end of the laying cycle in laying hens and broiler breeders. Egg shell quality deteriorated significantly at the higher temperature and was lower in broiler breeders than in laying hens. The Ca (P = 0.047) and P (P = 0.018) contents of the egg shell were significantly higher at the higher temperature. The highest (P = 0.028) shell Ca content (352 g/kg) was in eggs laid in the morning, but the highest P (P = 0.030; 1.43 g/kg) and Mg (P = 0.001; 3.88 g/kg) contents were in eggs laid in the afternoon. Broiler breeder egg shells contained significantly more P (P = 0.004) and Mg (P = 0.001) than did those from laying hens. Serum Ca and P levels remained constant throughout the day whereas serum Mg and Zn levels decreased, the rate of decrease in Zn content being the same in all treatments, but with the amounts being greater in laying hens than broiler breeders. The results demonstrate that shell quality characteristics are more severely affected by different factors implemented in this trial compared to the shell mineral composition and especially compared to the serum mineral content.

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Effects of dietary marigold extract on lutein content, yolk color and fatty acid profile of omega‐3 eggs

Grčević

Kralik

et al. 2018

J Sci Food Agric

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BACKGROUND: Lutein is a plant pigment very important for eye health in humans. Its bioavailability in humans is better from egg yolk than from dietary supplements. The aim of this research was to determine the influence of lutein (marigold extract powder) supplemented to laying hens' feed rich in omega-3 fatty acids on the content of lutein, fatty acid profile in egg yolks and yolk color. The diets that contained 5% of oils as a source of omega-3 fatty acids were supplemented with 0, 1 and 2 g kg −1 of marigold powder. RESULTS:The best enrichment of eggs with lutein was achieved by supplementing 2 g marigold kg −1 of feed. Yolk color was significantly intensified (P < 0.001) by supplementing 1 g marigold kg −1 of feed. The content of total saturated fatty acids, monounsaturated fatty acids and n-6 polyunsaturated fatty acids (PUFA) remained unchanged, whereas the content of total n-3 PUFA (P = 0.017) and docosahexaenoic acid (P < 0.001) was higher in the group with 2 g marigold kg −1 of feed. This group also had the most favorable ratio of n-6:n-3 PUFA. CONCLUSION: Results of this research showed that addition of marigold powder to laying hens' feed significantly increased egg lutein content and yolk color, and altered the fatty acid profile in yolk. Eggs with increased lutein content and a favorable profile of fatty acids are a good source of these ingredients in human nutrition. /jsfa PUFA was also higher in the experimental groups. Therefore, the ratio of n-6:n-3 PUFA was more favorable in groups fed mixtures supplemented with marigold extract (P = 0.025). The narrowest and the most favorable ratio of 5.04 was determined in group O 2 , J Sci Food Agric 2019; 99: 2292-2299

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A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens

Cited by 68 publications

References 17 publications

The effect of sea buckthorn (Hippophae rhamnoides L.) fruit residues on performance and egg quality of laying hens

The effect of sea buckthorn (Hippophae rhamnoides L.) fruit residues on performance and egg quality of laying hens

Effect of hen age, environmental temperature, and oviposition time on egg shell quality and egg shell and serum mineral contents in laying and broiler breeder hens

Effects of dietary marigold extract on lutein content, yolk color and fatty acid profile of omega‐3 eggs

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