Effects of Hot Water Extracts of Tea on Performance of Laying Hens.

Yamane, Toshimi; Goto, Hisaya; Takahashi, Daizo; H, Takeda; Otowaki, Kenjin; Tsuchida, Takao

doi:10.2141/jpsa.36.31

Cited by 16 publications

(13 citation statements)

References 15 publications

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“…There was a tendency that GTP feeding improves feed conversion ratio. This has been also observed in other feeding experiments using layers (Biswas et al, 2000;Yamane et al,1999). All the results including ours point out the decreased feed intake by GTP supplementation without change of body weight gain or egg production.…”

Section: Discussionsupporting

confidence: 90%

“…Our previous report described that long term feeding of GTP had favorable effects on laying performance and egg quality (Biswas et al, 2000). This was also reported in short term feeding experiment with layers by Yamane et al, (1999…”

Section: Introductionsupporting

confidence: 60%

“…TBA is widely used to estimate the degree of oxidation in various biological materials. Serum TBA level is known to be reduced by tea extract feeding (Yamane et al, 1999), which suggests an antioxidative effect of tea catechins. GTP feeding, irrespective of its supplemental level, lowered TBA values in broiler meat significantly (Table 3).…”

Section: Discussionmentioning

confidence: 99%

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Effect of Dietary Japanese Green Tea Powder Supplementation on Feed Utilization and Carcass Profiles in Broilers.

Biswas

Wakita

2001

J. Poult. Sci.

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Responses of broiler to dietary Japanese green tea powder (GTP) were investigated using 30 broiler chicks reared from 18 to 52 days of age. Five rations were formulated by addition of 0, 0.5, 0.75, 1.0 and 1.5% of GTP to starter and finisher diets, and each ration was fed ad libitum to appropriate group each consisting of 6 birds. Supplemental GTP tended to decrease feed intake and body weight gain with a higher dose , but tended to improve feed conversion ratio. Dressing percentage was not affected by GTP, though proportions of some parts of the carcass were influenced. Proportion of thigh meat was increased by 1.5% GTP feeding while that of wing meat was decreased in all GTP-fed groups. The quantity and percentage of abdominal fat were decreased significantly (P< 0.05) by GTP supplementation. Levels of liver cholesterol , liver fat and blood serum cholesterol were significantly reduced (P<0.05) by GTP feeding. Thiobarbituric acid content of meat remained significantly lower (P<0.05) in GTP fed broilers. GTP is likely to produce broilers with less fat, cholesterol and oxidative profiles without serious adverse effects on general performance.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionsupporting

confidence: 60%

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Effect of Dietary Japanese Green Tea Powder Supplementation on Feed Utilization and Carcass Profiles in Broilers.

Biswas

Wakita

2001

J. Poult. Sci.

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“…We observed a higher albumen height and Haugh unit in the shiitake groups. The results agree with those of Yamane et al (1999) and Biswas et al (2000), who reported that Japanese green tea inclusion in the layer diet improved the Haugh unit score of eggs. On the contrary, Deng et al (2011) and Uuganbayar et al (2006) reported no changes in albumen index and Haugh unit in alfalfa extract-and green tea-fed layer eggs.…”

Section: External and Internal Quality Of Eggssupporting

confidence: 91%

Effect of shiitake [Lentinula edodes (Berk.) Pegler] mushroom on laying performance, egg quality, fatty acid composition and cholesterol concentration of eggs in layer chickens

Hwang¹

2012

J. Med. Plants Res.

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Shiitake mushroom [Lentinula edodes (Berk.) Pegler] has long been considered a delicacy as well as a medicinal mushroom in many Asian countries, as well as being dried and exported internationally. This study assessed the influence of shiitake mushroom on laying performance, egg quality, sensory properties, fatty acid composition and cholesterol concentration of eggs in laying hens. The dietary groups were control (basal diet), shiitake 0.25% (basal diet + 0.25% shiitake mushroom) and shiitake 0.5% (basal diet + 0.5% shiitake mushroom). Egg production was significantly increased (p<0.05) by the shiitake supplementation compared to the control, but other laying parameters were not affected (p>0.05). Haugh unit was significantly increased (p>0.05) in both shiitake groups, but a thinner egg shell was observed in the shiitake 0.25% group and thicker egg albumen in the shiitake 0.5% group compared to the control group. Dietary addition of shiitake mushroom did not induce any effect (p>0.05) on sensory evaluation of eggs. Among the fatty acid composition of egg yolk, linoleic acid as well as total n-6 and polyunsaturated fatty acid contents were increased (p<0.05), whereas palmitoleic acid and αlinolenic acid were decreased (p<0.05) in the shiitake 0.5% group. Cholesterol concentration of egg yolk was significantly decreased (p<0.05) in the shiitake 0.5% group compared to the control group. Dietary supplementation with shiitake mushroom up to 0.5% positively affects egg production, egg quality, fatty acid composition and cholesterol level reduction of eggs, and did not adversely affect sensory properties of eggs. Shiitake mushroom could be beneficial in layer diet.

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“…There was a tendency that Camellia sinensis powder feeding improves feed conversion ratio. This has been also observed in other feeding experiments using layers (Biswas et al, 2000;Yamane et al, 1999). All the results point out the decreased feed intake by Camellia sinensis powder supplementation without change of body weight gain or egg production.…”

Section: Influence Of Camellia Sinensis On Broilerssupporting

confidence: 83%

Dietary Camellia sinensis Influences the Broilers: A Review

Khaskheli

2020

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This study was conducted in order to understand the impact of using dietary Camellia sinensis in broilers. In this regards several studies were explored and obtained findings were found to be much interesting and useful. In summary it has been reported by researchers that Camellia sinensis supports the feed intake (4480 g/b), water intake (8960 ml/b), live body weight (2356.8 g/b), weekly weight gain (2322.8 g/b), carcass weight (1381.8 g/b) and feed conversion ratio (1.92). Further, it was stated that Camellia sinensis reduces the relative weight of heart, liver, spleen, proventriculus, intestine and fat pad by 13.53, 61.1, 2.26, 58.13, 10.2 and 81.41%, respectively compared to their normal weights. Camellia sinensis enhances the immunity of broilers that results lower infection rate and mortality rate. Concerning digestibility it was indicated by researchers that digestibility of crude protein improves by 80.33%, ether extract by 76%, crude fiber 33.83% and metabolizable energy by 79.66%. In conclusion, Camellia sinensis has been proved an important dietary supplement for the broilers. It supports birds’ immunity, production and performance.

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Effects of Hot Water Extracts of Tea on Performance of Laying Hens.

Cited by 16 publications

References 15 publications

Effect of Dietary Japanese Green Tea Powder Supplementation on Feed Utilization and Carcass Profiles in Broilers.

Effect of Dietary Japanese Green Tea Powder Supplementation on Feed Utilization and Carcass Profiles in Broilers.

Effect of shiitake [Lentinula edodes (Berk.) Pegler] mushroom on laying performance, egg quality, fatty acid composition and cholesterol concentration of eggs in layer chickens

Dietary Camellia sinensis Influences the Broilers: A Review

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