Mycology of some litter materials and effect of litter and preslaugther feed withdrawal on gut bacterioflora in broiler chicken

Khosravinia, Heshmatollah; Gharoni, M.H.; Darvishnia, Mostafa

doi:10.1017/s1752756200010772

Cited by 3 publications

(15 citation statements)

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“…Besides yeasts, the most prevalent fungal species detected in our study were Aspergillus (encompassing the Flavi and Nigri sections), Mucor , and Penicillium spp. ( Table 3 ), which is in line with previous reports ( 9 , 22 , 37 , 38 , 39 , 50 , 51 ). These three also showed significant seasonal differences.…”

Section: Resultssupporting

confidence: 92%

Differences in fungal contamination of broiler litter between summer and winter fattening periods

Ostović

Ravić

Kovačić³

et al. 2021

Archives of Industrial Hygiene and Toxicology

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This study aimed to compare fungal contamination of poultry litter between warm and cold seasons. It was carried out in commercial production conditions over two five-week fattening periods: one in the summer (July-August) and one in the winter (December-January). Broilers were reared on a litter composed of chopped straw and sawdust. Litter fungal concentration and composition were investigated weekly, along with litter temperature, moisture, and pH. Litter concentration of total fungi increased over both fattening periods, with no differences in median concentrations between them. Season also had no effect on yeast, Aspergillus section Nigri, and Cladosporium, Fusarium, and Rhizopus spp. concentrations, while the Aspergillus section Flavi and Aspergillus spp. combined showed higher concentrations in the summer, and Mucor and Penicillium spp. in the winter. Total fungal concentration highly correlated with litter temperature, moisture, and pH, regardless of the season. Our findings can be useful in the assessment and control of potential harmful effect of fungi on the health of poultry and poultry farm workers.

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Section: Resultssupporting

confidence: 92%

Differences in fungal contamination of broiler litter between summer and winter fattening periods

Ostović

Ravić

Kovačić³

et al. 2021

Archives of Industrial Hygiene and Toxicology

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“…The selected studies and their main characteristics are described in Table 2 . Of the reviewed studies ( n = 19), seven were conducted in the The United States of America [ 11 , 30 , 31 , 32 , 33 , 34 , 35 ], four in Europe (one in Portugal [ 10 ], one in France [ 2 ], one in Lithuania [ 36 ], and one in Bulgaria [ 3 ]), six in Africa (one in Argelia [ 37 ], one in Kuwait [ 22 ], two in Egypt [ 23 , 38 ], and two in Cameroon [ 4 , 21 ]), one in Asia (Korea [ 39 ]), and one in the Middle East (Iran [ 6 ]). Most of the studies were conducted in poultry farms (10 out of 19–53%) [ 10 , 11 , 21 , 29 , 31 , 33 , 35 , 36 , 37 , 38 ], four (21%) in big poultry farms [ 3 , 4 , 22 , 30 ], four (21%) in small poultry farms [ 2 , 5 , 32 , 34 ], and one in a big duck farm [ 39 ].…”

Section: Resultsmentioning

confidence: 99%

“…The sampling method used in all studies (100%) was animals’ bedding collection [ 2 , 3 , 4 , 6 , 10 , 11 , 21 , 23 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. Eight out of nineteen studies (42%) specified the type of bedding material, from which four used pine shavings [ 10 , 30 , 35 , 38 ], two used straw [ 2 , 10 ], three used wood shavings [ 4 , 6 , 10 ], three used rice hulls [ 10 , 35 , 37 ], one used cow dungs, shredded paper barley stalks and a mixture of these materials with wood shavings and rice hulls [ 6 ].…”

Section: Resultsmentioning

confidence: 99%

“…Regarding contamination characterization in the 19 studies, 16 studies focused on bacterial contamination [ 3 , 4 , 11 , 21 , 22 , 23 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ], and 3 studies on fungal contamination [ 2 , 6 , 10 ]. Nine studies detected Salmonella sp.…”

Section: Resultsmentioning

confidence: 99%

“…Feces, leftover food, bedding material, and feathers that characterize poultry litter are a high-quality, low-cost organic soil fertilizer that boosts crop quality and productivity, which explains its extensive use as manure around the world [ 4 , 5 ]. A proper bedding material, in terms of chemical and physical features as well as microbial counts, is a requirement for efficient broiler production [ 6 ], and wood-based beddings were associated with an improvement in birds’ performance [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Microbial Contamination of Bedding Material: One Health in Poultry Production

Gomes

Pena

Cervantes

et al. 2022

IJERPH

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In poultry farms, the mixture of bedding material, chicken excrement, and feathers seems to play an important role in pathogen development which may contribute to a potential risk of zoonosis, spreading the disease through the food chain. The purpose of this study was to analyze microbial contamination in bedding material and other matrices as well as potential antimicrobial resistances in chicken production facilities, and also to identify the sampling techniques and assays used. This study evidences the available data published, following the PRISMA methodology. Among the environmental samples, surface swabs were frequently used as a passive sampling technique. Morphological identification was performed in all studies. From all the matrices, the bedding material was the most contaminated. Most studies focused on bacterial contamination, with Salmonella sp. and Campylobacter sp. being commonly reported and three studies evidenced fungal contamination, being Penicillium sp.- and Aspergillus sp.-dominant. Mycotoxin assessment was only performed in one study, being identified in all bedding samples. The screening for bacteria resistance evidenced bacteria multidrug resistance; however, fungal susceptibility to azoles was not assessed in any of the analyzed studies. Briefly, this review evidences the microbial contamination in poultry facilities, emphasizing animals’ bedding as a potential source of contamination. Additionally, this study contributes to a sampling and analysis protocol proposal to assess the microbial contamination in this setting. Additionally, the knowledge gaps identified highlight the need of further research regarding microbial contamination and toxicological potential on animals’ bedding in order to mitigate the exposure in poultry pavilions.

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Effect of Oiling and Antimicrobial Spray of Litter on Performance of Broiler Chickens Reared on Leaves and Corn Cob Bedding Materials under Heat Stress Conditions

Khosravinia¹

2005

Asian Australas. J. Anim. Sci

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This study was conducted to investigate the efficacy of surface spraying of antimicrobial solutions, oil and application of both on performance of broiler chicken under heat stress and reared on leaves and ground corn cobs as two alternative bedding materials. Six hundred seventy five day-old straightrun Arian broiler chicks were randomly assigned to 45 pens (at density of 0.09 m 2 / bird) in an open sided partially-controlled shed. Three bedding materials viz. wood shavings (WS), ground corn cobs (GCC) (1.5 cm in length) and leaves were subjected to surface spraying of oil (0.4 L/m 2 animal food grade sunflower oil), anti microbial solutions (3%) and mix treatment of both. Data on performance traits, incidence of breast and food pad lesions and litter characteristics were gathered and analysed in an appropriate factorial arrangements. Body weight at 56 d, feed intake up to 14 d, litter moisture at 28 d, litter pH at 14 d and litter temperature at 14 and 56 d were significantly influenced by litter type (p<0.05). Litter treatment revealed significant impact on body weight at 28, 42 and 56 d, feed intake during 29-42 and 1-42 d, mortality up to 56 d, litter temperature at 28 and 56 d, and litter pH at 28 and 56 d. Leaves and ground corn cobs have shown good potential as alternative bedding materials for rearing broilers. Surface spraying of antimicrobial solutions, oil and applying both were not effective tools to promote the broiler's health and performance. Meat type poultry growers and integrators are considered as primary audiences of the results achieved.

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Mycology of some litter materials and effect of litter and preslaugther feed withdrawal on gut bacterioflora in broiler chicken

Cited by 3 publications

References 0 publications

Differences in fungal contamination of broiler litter between summer and winter fattening periods

Differences in fungal contamination of broiler litter between summer and winter fattening periods

Microbial Contamination of Bedding Material: One Health in Poultry Production

Effect of Oiling and Antimicrobial Spray of Litter on Performance of Broiler Chickens Reared on Leaves and Corn Cob Bedding Materials under Heat Stress Conditions

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