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Effects of pre-slaughter fasting on broiler welfare, meat quality, and intestinal integrity Rev. Bras. Ciênc. Avic.
Pereira,REP; Martins,MRFB; Mendes,AA; Almeida,PAZ ICL; Komiyama,CM; Milbradt,EL; Fernandes,BC da S.
The Brazilian Ministry of Agriculture (MAPA) regulations establish 12 hours as the maximum pre-slaughter fasting period for broilers; however, many processing plants have considered this time is not sufficient, and consequently return the birds to the farms, with consequent economic losses and welfare problems. Therefore, it is necessary to investigate the possible effects of longer pre-slaughter fasting times. The objective of the present study was to evaluate the effect of pre-slaughter fasting times longer than those established by MAPA on broiler welfare, breast meat quality, and intestinal integrity. Forty 42-d-old broilers were submitted to different pre-slaughter fasting times: group I: 6 hours, group II 9h, group III 12h, and group IV 15h. Bird...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler industry; Stress; Intestinal morphology; Intestinal morphometrics.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200007
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Footpad Dermatitis in Broilers: Differences between Strains and Gender Rev. Bras. Ciênc. Avic.
Martins,BB; Martins,MRFB; Mendes,AA; Fernandes,BCS; Aguiar,EF.
ABSTRACT Pododermatitis, also known as "bumblefoot", is an inflammatory lesion of the footpad. The objective of this study was to evaluate the influence of genetic strain and sex on the incidence of footpad lesions in broilers. The experiment was carried out at São Paulo State University, using 480 broilers distributed in a completely randomized experimental design in a 2X2 factorial arrangement (2 strains X2 sexes), with four replicates of 30 broilers each, totaling 16 experimental units. Feed intake, weight gain, feed conversion ratio, and livability were evaluated at 21, 35 and 42 days of age; production efficiency factor was determined at the end of the rearing period. On day 42, the footpads of 100 broilers were grossly examined and assigned a lesion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histopathological; Lesion score; Performance; Pododermatitis.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300461
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Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid Rev. Bras. Ciênc. Avic.
Fernandes,BCS; Martins,MRFB; Mendes,AA; Milbradt,EL; Sanfelice,C; Martins,BB; Aguiar,EF; Bresne,C.
This study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, with six treatments with six replicates of 30 birds each. The following treatments were evaluated: basal diet (control), basal diet supplemented with an antimicrobial, basal diet supplemented with a probiotic, basal diet supplemented with a prebiotic, basal diet with a symbiotic, and basal diet supplemented with organic acids. Weight gain, feed intake, feed conversion ratio and livability were recorded when broiler chickens were 10, 21, 35, and 42 days old. On day...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scanning electron microscopy; Morphometrics; Intestinal mucosa; Intestinal wall.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400012
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Quality parameters of the tibiae and femora of ostriches Rev. Bras. Ciênc. Avic.
Almeida Paz,ICL; Mendes,AA; Balog,A; Almeida,ICL; Martins,MRFB; Vulcano,LC; Komiyama,CM.
An experiment was carried out to establish mean bone quality values of the tibiae and femora of ostriches and to evaluate these bones. The right leg bones of 10 males and 10 female African Black ostriches were evaluated. Birds were radiographed immediately after slaughter (during bleeding), with the aid of a portable X-ray apparatus. The obtained radiographs were scanned and bone mineral density means were obtained using software. Bone strength, Seedor index, and dry matter percentage were evaluated and correlated to weight gain during the finishing period (3-13 months of age). Mean values of the evaluated bone quality traits, not previously found in literature, were established. There were no significant differences between males and females in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bones; Bone mineral density; Bone quality; Bone strength; Ostriches.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300005
Registros recuperados: 4
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