Litter characteristics and pododermatitis incidence in broilers fed a sorghum-based diet

Carvalho, Cmc; Litz, Fernanda Heloísa; Fernandes, EA; Silveira, MM; Martins, JM da S; Fonseca, LA; Zanardo, JA

doi:10.1590/1516-635x1603291-296

Cited by 4 publications

(2 citation statements)

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“…Litter pH and moisture content are some of the major determinants implicated in the survival and growth of litter pathogens [ 59 ]. Generally, litter pH ranges between 6.5 and 8.5, with negligible ammonia production below pH 7 [ 60 , 61 ]. In the current study, diet treatment did not have a significant impact on the final litter pH, though reused litter pens had greater final pH levels than clean litter pens.…”

Section: Discussionmentioning

confidence: 99%

Growth performance, caecal microbiome profile, short-chain fatty acids, and litter characteristics in response to placement on reused litter and combined threonine, arginine and glutamine supplementation to juvenile male broiler chickens

et al. 2023

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Background Exposure of broilers to litter microbiome may increase specific amino acid (AA) requirements towards activated immune responses. This may challenge the generality of the ideal protein (IP) concept, in which dietary essential AA to lysine ratios aimed to mimic presumably constant AA to lysine ratios in whole bird requirements. Therefore, we tested the effect of threonine, arginine and glutamine (TAG) supplementation to IP-based control diets (C) on performance, caecal microbiome composition, short-chain fatty acids and litter characteristics of broiler chickens placed on reused litter. Results Thirty-two pens with ten male broiler chickens each were used in a 2 × 2 factorial arrangement of two diet treatments (with or without TAG supplementation) and two litter treatments (placement on clean or reused litter) for 21 days (n = 8). Caecal contents were analysed for microbiome profile using percent guanine + cytosine (%G + C profile) method and short chain fatty acids. TAG-supplemented birds underperformed compared to C birds (P = 0.002), whereas birds placed on reused litter outperformed those on clean litter (P = 0.047). Diet, reused litter and their interaction impacted the %G + C profile at different ranges. Whilst TAG supplementation reduced bacterial abundance at %G + C 51–56 (P < 0.05), reused litter placement tended to reduce %G + C 23–31 and increase %G + C 56–59 (P < 0.10). However, TAG supplementation reduced bacterial abundance at %G + C 47–51 (P < 0.05) and increased caecal branched chain fatty acids on clean litter only (P = 0.025). Greater levels of propionic acid were observed for C birds placed on reused litter only (P = 0.008). Litter pH was greater for reused litter pens than clean litter pens at day 21 (P < 0.001). In addition, litter moisture content was less for TAG birds and reused litter pens compared to C birds (P = 0.041) and clean litter pens (P < 0.001), respectively. Conclusions These data support the view that irrespective of performance benefits arising from bird placement on reused litter, TAG supplementation to IP-formulated baseline rations impaired growth, supported by the lowered abundance of caecal bacteria known to dominate in well-performing birds and greater levels of caecal branched chain fatty acids.

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Section: Discussionmentioning

confidence: 99%

Growth performance, caecal microbiome profile, short-chain fatty acids, and litter characteristics in response to placement on reused litter and combined threonine, arginine and glutamine supplementation to juvenile male broiler chickens

et al. 2023

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“…It is also known that, in addition to thermal settings, nutrition plays a crucial role in the quality of litter and, therefore, the incidence of foot lesions. This is observed mainly when the feed given to broilers reduces the viscosity and increases the acidity of feces or makes them sticky, as observed with diets containing soy meal and high levels of carbohydrates (MENDES and KOMIYAMA, 2011;CARVALHO et al, 2014). This explains the need for studies that establish the contribution of each factor for the emergence of pododermatitis.…”

Section: Temperatures Of Skin Cloaca and Littermentioning

confidence: 99%

Physiological response, endrocrine and performance of broilers under cyclic heat stress

Bueno¹

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The objective of this study was to evaluate the effects of cyclic heat stress on the serum levels of thyroid hormones (T 3 and T 4), the thyroid histology, the performance, the temperatures (skin, cloaca, and litter), the feathering and the incidence of pododermatites in two broiler strains (Cobb Slow TM and Hubbard Flex TM), exposed to different heat protocols. It is possible to conclude that exposure to cyclic heat stress for 3 h from day 14 to day 42 did not affect performance, thyroid histology or the serum levels of T 3 and T 4 and there is no change in feathering and incidence of pododermatites. Cobb Slow™ broilers had the best live weight values at slaughter and higher cloacal temperature. With increasing age, T 3 levels decrease and T 4 levels increase. The temperatures of the broilers and litter increase as the ambient temperature increases.

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Assessment of Broiler Chicken Welfare in Southern Brazil

Federici

Vanderhasselt²,

Sans

et al. 2016

Rev. Bras. Cienc. Avic.

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Litter characteristics and pododermatitis incidence in broilers fed a sorghum-based diet

Abstract: 0.05) was found between the treatments and the type of ingredient in the birds' diet is not related (p>0.05) with the incidence of footpad dermatitis. The incidence of footpad dermatitis and the quality of the litter weren't influenced by the type of the ingredient used in diet.]]>

Cited by 4 publications

References 9 publications

Growth performance, caecal microbiome profile, short-chain fatty acids, and litter characteristics in response to placement on reused litter and combined threonine, arginine and glutamine supplementation to juvenile male broiler chickens

Growth performance, caecal microbiome profile, short-chain fatty acids, and litter characteristics in response to placement on reused litter and combined threonine, arginine and glutamine supplementation to juvenile male broiler chickens

Physiological response, endrocrine and performance of broilers under cyclic heat stress

Assessment of Broiler Chicken Welfare in Southern Brazil

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