Effects of Green Tea Polyphenols and Fructo-oligosaccharides in Semi-purified Diets on Broilers` Performance and Caecal Microflora and Their Metabolites

Cao, Bing-Hai; Karasawa, Yutaka; Guo, Yiting

doi:10.5713/ajas.2005.85

Cited by 64 publications

(67 citation statements)

References 27 publications

(27 reference statements)

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“…Other bioactive components reported in green tea include tannins, caffeine, amino acids and vitamins (Tsuneki et al, 2004). From a number of animal studies, it has shown that the bioactive component of green tea improves bodyweight gain and feed efficiency in pigs (Sarker et al, 2010b;Hossain et al, 2012a), calves (Sarker et al, 2010a) and broilers (Cao et al, 2005). Horax et al (2002) reported that green tea extracts could reduce the thiobarbituric acid-reactive substance (TBARS) values in raw meats during storage.…”

Section: Introductionmentioning

confidence: 99%

Effects of supplementation with green tea by‐products on growth performance, meat quality, blood metabolites and immune cell proliferation in goats

Ahmed

Lee

Mun

et al. 2014

Animal Physiology Nutrition

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Forty-eight castrated male goats were used to determine the effects of feeding green tea by-products (GTB) on growth performance, meat quality, blood metabolites and immune cell proliferation. Experimental treatments consisted of basal diets supplemented with four levels of GTB (0%, 0.5%, 1.0% or 2.0%). Four replicate pens were assigned to each treatment with three goats per replicate. Increasing dietary GTB tended to linearly increase the overall average weight gain and feed intake (p = 0.09). Water holding capacity, pH and sensory attributes of meat were not affected by GTB supplementation, while cooking loss was reduced both linearly and quadratically (p < 0.01). The redness (linear; p = 0.02, quadratic; p < 0.01) and yellowness (quadratic; p < 0.01) values of goat meat were improved by GTB supplementation. Increasing dietary GTB quadratically increased protein and decreased crude fat (p < 0.05), while linearly decreased cholesterol (p = 0.03) content of goat meat. The proportions of monounsaturated fatty acid, polyunsaturated fatty acid (PUFA) and n-6 PUFA increased linearly (p < 0.01) and n-3 PUFA increased quadratically (p < 0.05) as GTB increased in diets. Increasing dietary GTB linearly increased the PUFA/SFA (saturated fatty acid) and tended to linearly and quadratically increase (p ≤ 0.10) the n-6/n-3 ratio. The thiobarbituric acid-reactive substances values of meat were lower in the 2.0% GTB-supplemented group in all storage periods (p < 0.05). Dietary GTB linearly decreased plasma glucose and cholesterol (p < 0.01) and quadratically decreased urea nitrogen concentrations (p = 0.001). The growth of spleen cells incubated in concanavalin A and lipopolysaccharides medium increased significantly (p < 0.05) in response to GTB supplementation. Our results suggest that GTB may positively affect the growth performance, meat quality, blood metabolites and immune cell proliferation when supplemented as a feed additive in goat diet.

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Section: Introductionmentioning

confidence: 99%

Effects of supplementation with green tea by‐products on growth performance, meat quality, blood metabolites and immune cell proliferation in goats

Ahmed

Lee

Mun

et al. 2014

Animal Physiology Nutrition

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“…and certain butyrate producing bacteria (Prestamo et al, 2003;Huang et al, 2012;Ramnani et al, 2012;Cardona et al, 2013;Fechner et al, 2013;Duenas et al, 2015). At the same time, they suppress the growth of toxogenic E. coli and proteolytic bacteria like Clostridium perfringens, Streptococcus sp., peptococci, bacilli, Staphylococcus sp., bacteriodaeceae, pseudomonad, yeast and mould (Samarasinghe et al, 2003;Cao et al, 2005;Rohin et al, 2014;Asian J. Anim. Vet.…”

Section: Microbiological Attributesmentioning

confidence: 99%

Prebiotics: An Emerging Nutritional Approach for Improving Gut Health of Livestock and Poultry

Samal¹,

Behura²

2015

Asian J. of Animal and Veterinary Advances

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The complex interactions between diet, intestinal mucosa and intestinal microbiota affect health status in livestock and poultry. Various approaches have been tried to exploit this relationship for achieving maximum health benefits and supplementation of prebiotics constitutes one of them. Now a days prebiotics have become news mainly as an alternative to probiotics, which are difficult to handle in foodstuffs, but whose benefits to gut health are well established. Commercially available prebiotics are mostly inulin, fructo-oligosaccharides, mannan-oligosaccharides, galacto-oligosaccharides, transgalacto-oligosaccharides, lactulose and oligochitosan, etc. Prebiotics selectively stimulate the growth of Bifidobacterium sp., Lactobacillus sp. and certain butyrate producing bacteria and suppress the growth of toxogenic Escherichia coli, Clostridium perfringens, Streptococcus sp., peptococci, bacilli, Staphylococcus sp., Salmonella enteritidis, Campylobacter sp., bacteriodaeceae, pseudomonad, yeast and mould. Dietary supplementation of prebiotics improve a plethora of gut health attributes like hindgut fermentation, gut mucosal integrity, lipid and glucose homeostasis, mineral bio-availability and immune response in livestock and poultry owing to which many feed and pharma industries have been established. Their inclusion in diet can also suppress boar taint, control faecal odour, prevent colon cancer and reduce infestation of several parasites such as Ascaris sp., Trichuris sp. and Oesophagostomum dentatum. Their satietogenic effect results from decline in ghrelin secretion which in turn regulates body weight gain in obese animals. Prebiotics may eventually replace the role of antibiotics as growth stimulants in fishery, poultry and animal husbandry sectors. Because of all these multitude of benefits, inclusion of prebiotics in basal diet should be taken into consideration while preparing formula feed for livestock and poultry.

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“…Green tea supplementation has been shown to improve body weight gain in broilers (Biswas and Wakita 2001) and pigs (Hossain et al 2012). The beneficial effects of GT by-products (Yang et al 2003;Cao et al 2005;), extract (Shomal et al 2012;Farahat et al 2016) and powder (Biswas and Wakita 2001;Alimohammadi-Saraee et al 2014) on performance and health of poultry have been reported. These effects of dietary green tea have been mainly attributed to its polyphenols (Ninomiya et al 1997;Gramza et al 2005;Khan 2014) which are reported to have antioxidant (Molan et al 2009;Sahin et al 2010) and antimicrobial (Jang et al 2007;Erener et al 2011;Khan 2014) activities.…”

Section: Introductionmentioning

confidence: 99%

Comparative effects of Chinese green tea (Camellia sinensis) extract and powder as feed supplements for broiler chickens

Jelveh

Rasouli

Seidavi

et al. 2018

Journal of Applied Animal Research

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The comparative effects of green tea extract (GTE) and powder (GTP) on performance of broilers were studied. A total of 405-day-old male Ross 308 broiler chicks were randomly assigned to 9 groups containing 3 replicates of 15 chicks each. The treatments consisted of a control and diets supplemented with 4 levels (10, 20, 30 and 40 g/kg) of GTP and GTE. Feed intake and body weight gain were suppressed (P < .05) by GTP supplementation (P < .05). The best feed conversion ratio was observed on the GTE supplemented group. The highest mortality rate was recorded on the control and the lowest on the GTP groups (P < .05). The best economic index was achieved with GTE supplementation of the diet (P < .05). Relative weights of carcass, breast and drumstick were significantly reduced on GTP compared to GTE (P < .05). GTE up to 40 g/kg diet will maintain growth and feed utilization but inclusion of the powder even as low as 10 g/kg the diet may compromise feed intake, growth performance and carcass traits. Differences in the polyphenol content of the extract (10.2%) and powder (14.9%) may be reasons these performance results. Further studies on green tea source and method of processing are recommended. ARTICLE HISTORY

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Effects of Green Tea Polyphenols and Fructo-oligosaccharides in Semi-purified Diets on Broilers` Performance and Caecal Microflora and Their Metabolites

Cited by 64 publications

References 27 publications

Effects of supplementation with green tea by‐products on growth performance, meat quality, blood metabolites and immune cell proliferation in goats

Effects of supplementation with green tea by‐products on growth performance, meat quality, blood metabolites and immune cell proliferation in goats

Prebiotics: An Emerging Nutritional Approach for Improving Gut Health of Livestock and Poultry

Comparative effects of Chinese green tea (Camellia sinensis) extract and powder as feed supplements for broiler chickens

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