Antibiotic Usage in Poultry Production and Antimicrobial-Resistant Salmonella in Poultry

Kumar, Deepak; Pornsukarom, Suchawan; Thakur, Siddhartha

doi:10.1007/978-3-030-05011-5_3

Cited by 17 publications

(18 citation statements)

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“…Indeed, the profound role of dietary growth promoters on gut bacteria for enhancing broiler weight gain is the subject of intensive research. It is claimed that AGPs are being used in poultry to improve feed efficiency, body weight, and carcass yield; reduce mortality; and eventually enhance growth ( Kumar et al, 2019 ). Similarly, AGPs tended to increase the FCR and body weight in broilers compared with a control group ( Kumar et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Enhanced modulation of gut microbial dynamics affecting body weight in birds triggered by natural growth promoters administered in conventional feed

Rashid

Mirani

Zehra

et al. 2020

Saudi Journal of Biological Sciences

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This study explored the effects of natural growth promoters (phytogenic feed additives and organic acids) on animal performance, carcass characteristics, blood parameters, gut microflora composition, and microbe–host interactions in broiler chickens over a 42-day feeding period. Two-hundred-fifty-day-old chicks were randomly assigned to one of five treatments: (i) control diets (CON); (ii) control diets + 40 g/tons antibiotic growth promoter (AB); (iii) control diets + 3 kg/tons organic acids (ORG); (iv) control diets + 3 kg/tons phytogenic feed additives (PHY); (v) control diets + 3 kg/tons organic acids + phytogenic feed additive combination (COM). A non-significant differences ( p > 0.05 ) were observed in broiler performance among treatments at 21 days of age; however, a gradually increasing body weight gain and reduced feed conversion ratio were observed at 42 days in treatments versus control group. Biochemical indices were non-significant ( p > 0.05 ) except for decreased cholesterol ( p < 0.05 ) and increased A/G ratio ( p < 0.05 ) recorded in the treatment groups. The addition of PHY and ORG improved total counts of Enterococcus spp. and Lactobacillus spp. ( p < 0.05 ) as well as reduced caecal and ileal Campylobacter spp. and Escherichia coli ( p < 0.05 ). Correlation analysis elucidated beneficial bacteria ( Enterococcus spp. and Lactobacillus spp.) were positively and pathogenic bacteria ( Campylobacter spp. and E. coli ) were negatively correlated ( p < 0.05 ) with host weight gain. The findings indicated that dietary supplementation of PHY and ORG sustained balanced gut microflora, which in turn improved body weight. This study broadens the significance of using PHY and ORG as safe alternatives to antibiotic growth promoters for achieving healthier and economical broiler production.

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Section: Discussionmentioning

confidence: 99%

Enhanced modulation of gut microbial dynamics affecting body weight in birds triggered by natural growth promoters administered in conventional feed

Rashid

Mirani

Zehra

et al. 2020

Saudi Journal of Biological Sciences

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“…With an increasing global population and subsequent increased demand for food, poultry farming has 443 provided meat at a low cost in high-density poultry farms (19). However, a problem is that chickens 444 often grow up in overcrowded stables, with poor hygiene and high risk of bacterial infections, and low 445 doses of antibiotics are routinely given to prevent infections (19,27). As an example, a study on antibiotic use at eight chicken-farms in Thailand concluded that probably several tonnes of antibiotics 447 are used every year in Thai poultry farming (28).…”

Section: Consumers Perceived Both As a Threat And As A Possibility 442mentioning

confidence: 99%

“…In chicken-meat production the suggested methods to decrease the need of antibiotics include 401 biosecurity, hygiene, management, vaccine and probiotics (19,20). Farmers and veterinarians have 402 been identified as key players in work to contain antibiotic resistance in the animal sector (15), and 403 these were the stakeholders included in our study.…”

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The Swedish example of food animal production without extensive use of antibiotics – or “healthy animals do not need antibiotics”

Björkman

Röing

Eriksen

et al. 2019

Preprint

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“…Вони здатні модулювати імунну відповідь організму. Представниками метаболітів симбіотичних бактерій, що виконують бактерицидну функцію в кишечнику є бактеріоцини та органічні кислоти (Kumar et al, 2019) Багато представників грамнегативних і грампозитивних бактерій (особливо лактобактерії) продукують антибіотичні речовини білкової природи -бактеріоцини. Механізм біологічної дії бактеріоцинів пов'язаний, насамперед з порушенням цитоплазматичних мембран чутливих до них мікроорганізмів.…”

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The influence of prophylactic biopreparations on preservation and microbiocenosis of chickens

Kucheruk

Zasekin

2019

SMLNUVMB

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The cultivation of organic birds is an important stage in ensuring the population, in particular children, a source of quality and easily digestible protein. The use of antibiotics with a prophylactic purpose in organic livestock is prohibited at the legislative level. Therefore, this new direction in agriculture requires professional scientific support and effective natural prophylaxis as an alternative to antibiotics. The research was conducted in a certified organic poultry farm. The purpose of the production trial of the probiotic and the new postbiotic drug on chickens was to compare their effectiveness with respect to the productivity and consistency of the poultry. The results were compared with the data of the control group of chickens and experimental groups among themselves. In addition, there was a link between the performance of chickens with the functional state of intestinal microbiocenosis and the corrective effect of these drugs. The expressed prophylactic effect of the tested drugs on the best of 20–22% preservation of chickens, as well as on higher body weight gain was established. The death of the control group chickens was due to dysbiosis of digestion with the domination of E. coli in the intestine. The study of intestinal microbiocenosis showed significantly higher concentrations of lactobacillus in the chickens of both experimental groups compared with the control group. Due to the competitive substitution of lactobacilli, the amount of E. coli in the intestines of chickens in experimental groups was reduced, where the test drugs were used. Excessive E. coli in the intestines of the control group chickens could provoke inflammation in the intestine and the development of clinical manifestations of colibacillosis. As a consequence – recorded a high percentage of deaths of chickens in this group. Thus, correction of microendocology of poultry intestines may be carried out by prophylactic preparations based on living representatives of symbiotic microflora (probiotics) or compositions of their useful metabolites (postbiotics). Such a correction occurs naturally, without violating the traditional mechanisms of interaction within the microbiological pool.

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Antibiotic Usage in Poultry Production and Antimicrobial-Resistant Salmonella in Poultry

Cited by 17 publications

References 84 publications

Enhanced modulation of gut microbial dynamics affecting body weight in birds triggered by natural growth promoters administered in conventional feed

Enhanced modulation of gut microbial dynamics affecting body weight in birds triggered by natural growth promoters administered in conventional feed

The Swedish example of food animal production without extensive use of antibiotics – or “healthy animals do not need antibiotics”

The influence of prophylactic biopreparations on preservation and microbiocenosis of chickens

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