The Effects of a Natural Antibiotic Alternative and a Natural Growth Promoter Feed Additive on Broiler Performance and Carcass Quality

Buchanan, N. P.; Hott, J. M.; Cutlip, S. E.; Rack, A. L.; Asamer, A.; Moritz, J. S.

doi:10.3382/japr.2007-00038

Cited by 48 publications

(29 citation statements)

References 12 publications

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“…Buchanan et al (2009 ) reported that medicinal plants contained phytogenic compounds, essential oils and organic acid those could reduce pathogenic bacteria in the chicken. It was similar results were reported by previous authors (Dickens et al, 2000;Dorman et al, 2000;Abd El-Latif, 2002;Al-Harthi, 2002;Hassan, et al, 2004;Buchanan et al, 2008;Javed et al, 2009;Onibi et al, 2009) who fed briler chicken with the diet consists of herbs or medicinal plants. They reported that there was a positive effect of feeding herbal feed additive on broiler performance due to that herbal supplementation or medicinal plant supplementation could improve nutrient digestive process, thus, in could chicken body weight gain and at the end increase slaughter weight of chicken.…”

Section: Liveweight and Carcasssupporting

confidence: 90%

EXTRACTED PEARL GRASS EFFECT ON BROILER CARCASS KEPT ON Escherichia coli – SPRAYED LITTER

Nurhayati

Latief

Insulistyowati

2010

J. Indonesian Trop. Anim. Agric.

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An experiment was conducted to determine the effect of hexane and acetic ethyl extracted pearl grass as feed additive in the ration on carcass of broiler chickens where the litter was sprayed by Escherichia coli. The experiment was assigned to Completely Randomized Design with 5 treatments and 4 replications. The treatments were level of pearl grass extract added into the ration; 0 (R0, control), 0.8 (R1), 1.6 (R2), 2.4 (R3) dan 3.2 (R4) gram per kilogram ration. After 3 weeks of age, litters were sprayed by Escherichia coli as much as 10 6 CFU/100 ml liquid agar. Then, chickens were kept until 6 weeks of age. Result showed that there was no significant different among treatments groups on chicken carcass and there was no any adverse effect on liver and intestines. It is concluded that extracted pearl grass could be utilized as natural feed additive source to produce carcass of broiler chicken where their litter was sprayed by E. coli bacteria.

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Section: Liveweight and Carcasssupporting

confidence: 90%

EXTRACTED PEARL GRASS EFFECT ON BROILER CARCASS KEPT ON Escherichia coli – SPRAYED LITTER

Nurhayati

Latief

Insulistyowati

2010

J. Indonesian Trop. Anim. Agric.

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“…Similarly, Wheeler (2006) fed herbal medicines to broiler chicken and observed better FCR values at the end of the trial. Buchanan et al (2008) stated that broiler chicken fed diets having plant extract blends had minimum feed conversion ratio, increase weight gain and maximum breast yield.…”

Section: Discussionmentioning

confidence: 99%

Adding Phytogenic Material and/or Organic Acids to Broiler Diets: Effect on Performance, Nutrient Digestibility and Net Profit

Hassa¹,

Youssef²,

Ali³

et al. 2015

Asian J. of Poultry Science

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A growth experiment was conducted to study performance, nutrients digestibility and economic efficiency of broiler chicks fed corn-soybean meal diets supplemented with a commercial phytogenic product (Bedgen 40 ) contained artichoke extract (Cynara scolymus), a commercial mixture of ® organic acids (Galliacid ) and a combination of both. Starter, grower and finisher diets were ® supplemented with two levels of both being 0 and 150 g tG artichoke extract and 0 and 600 g tG 1 1 organic acids in 2×2 factorial arrangement. Dietary treatments were examined on 200 one day-old Cobb broiler chicks. The experiment lasted from 1-39 days of age. The results showed that supplementation of artichoke extract or organic acids mixture significantly (p<0.05) increased body weight gain by about 6% and improved feed conversion ratio by about 7%, compared with the control diet of no feed additives. Addition of artichoke extract improved the digestibility coefficients (p<0.01) of CP and CF, while, addition of organic acids mixture improved the digestibility coefficients (p<0.01) of DM, OM, CP, CF and NFE compared to the un-supplemented diet. Supplementation of artichoke extract and organic acids decreased total feed cost/kg body weight and improved net profit and economic efficiency. It could be concluded that using artichoke extract or organic acids mixture improved broiler performance and economic efficiency of broilers fed corn-soybean meal diets. No associative effect was detected on performance, digestibility or economic efficiency when a combination of both products was used.

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“…However, this practice has accompanied with prevalence and establishment of antibiotic-resistant species within the human populations (Phillips et al, 2004). Consequently, the use of these medicals in livestock production is being faced to extensive limitations, and poultry industry is compelled to find potential alternatives for antibiotics to increase disease resistance in poultry flocks and also to maintain proper markets for poultry products (Buchanan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Improved performance and immunological responses as the result of dietary genistein supplementation of broiler chicks

Rasouli

Jahanian

2015

Animal

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The present study aimed to investigate the effect of supplemental genistein (an isoflavonoid) on performance, lymphoid organs' development, and cellular and humoral immune responses in broiler chicks. A total of 675-day-old male broiler chicks (Ross 308) were randomly assigned to the five replicate pens (15 chicks each) of nine experimental diets. Dietary treatments included a negative (not-supplemented) control diet, two positive control groups (virginiamycin or zinc-bacitracin, 20 mg/kg), and diets containing 10, 20, 40, 80, 160 and 320 mg/kg of genistein. The cutaneous basophil hypersensivity (CBH) test was measured at day 10 of age after toe web injection with phytohemagglutinin-P. In addition, sera samples were collected after different antigen inoculations to investigate antibody responses. At day 28 of age, three randomly selected birds from each pen were euthanized to evaluate the relative weights of lymphoid organs. Results showed that dietary supplementation of both antibiotics increased ( P < 0.01) feed intake during 1 to 42 days of age. Furthermore, daily weight gain was influenced ( P < 0.01) by dietary treatments throughout the trial, so that the birds fed on antibiotics and 20 to 80 mg/kg genistein diets revealed the greater weight gains compared with other experimental groups. The best ( P < 0.05) feed conversion ratio assigned to the birds fed on diets containing antibiotics and moderate levels (40 to 80 mg/kg) of genistein. Although the relative weights of thymus ( P < 0.05) and bursa of Fabricius ( P < 0.01) were greater in birds fed on genistein-supplemented diets compared with antibiotics-supplemented birds, the spleen weight was not affected by experimental diets. Similarly, CBH response and antibody titers against Newcastle and infectious bronchitis disease viruses were markedly ( P < 0.05) greater in chicks fed on diets supplemented with 20 to 80 mg/kg of genistein. Interestingly, the higher dosages of genistein suppressed CBH and antibody responses to the levels seen by control and antibiotics chicks. Dietary inclusion of genistein increased ( P < 0.05) lymphocytes and subsequently reduced ( P < 0.01) heterophil to lymphocyte ratio. The present findings indicate that dietary genistein supplementation at the levels of 20 to 80 mg/kg not only improves growth performance, but also could beneficially affect immunological responses in broiler chicks.Keywords: broiler chicks, genistein, humoral immunity, isoflavonoids, leukocyte subpopulations ImplicationsComparative effects of two antibiotics (virginiamycin or zincbacitracin) and supplemental genistein were assessed in broiler chicks. Results showed that the birds fed on diets containing antibiotics and 20 to 80 mg/kg of genistein had the greater weight gains. Dietary genistein supplementation increased the relative weights of thymus and bursa of Fabricius. In addition, antibody responses against viral antigens were greater in genistein-supplemented chicks compared with those on antibiotics diets. Dietary inclusion of genistein increased lymp...

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The Effects of a Natural Antibiotic Alternative and a Natural Growth Promoter Feed Additive on Broiler Performance and Carcass Quality

Cited by 48 publications

References 12 publications

EXTRACTED PEARL GRASS EFFECT ON BROILER CARCASS KEPT ON Escherichia coli – SPRAYED LITTER

EXTRACTED PEARL GRASS EFFECT ON BROILER CARCASS KEPT ON Escherichia coli – SPRAYED LITTER

Adding Phytogenic Material and/or Organic Acids to Broiler Diets: Effect on Performance, Nutrient Digestibility and Net Profit

Improved performance and immunological responses as the result of dietary genistein supplementation of broiler chicks

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