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| 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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| Silva,IGO; Vellano,IHB; Moraes,AC; Lee,IM; Alvarenga,B; Milbradt,EL; Hataka,A; Okamoto,AS; Andreatti Filho,RL. |
| ABSTRACT The present study evaluated a probiotic and a competitive exclusion product injected in ovo on day 18 of incubation together with Marek's disease vaccine in eggs of 56-week-old broiler breeders. Three experiments were carried out. The first trial evaluated the effect of treatments on hatchability, cecal colonization of Salmonella Heidelberg (SH), and intestinal mucosa immunity (immunoglobulin A levels in the intestinal fluid). The second trial evaluated the viability of the microorganisms in the products inoculated in a solution containing diluent and Marek's disease vaccine. The third trial evaluated the colonization of the cecal microbiota in non-challenged chickens during first four days of life by culturing cecal samples under aerobic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chickens; Competitive exclusion; In-ovo inoculation; Probiotic; Salmonella Heidelberg. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100019 |
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| MRFB,Martins; Mendes,AA; Milbradt,EL; Almeida Paz,ICL; Martins,BB; Fernandes,BCS. |
| ABSTRACT The objective of this study was evaluated the villus integrity of commercial turkeys submitted to coccidiosis prevention methods and challenged with Eimeria field oocysts, using scanning electron microscopy. Sixty BUT 9 female commercial turkeys were distributed in a completely randomized block design split with two treatments: T1- control diet without vaccinations against coccidiosis and anticoccidial drug, and T2- vaccinated against coccidiosis (commercial vaccine). On d 21 of life, all birds of all treatments were challenged with a mixed-species containing E. meleagrimitis and E. galopavonis, via crop intubation with 1 mL of ~20,000 sporulated oocysts/bird. The size of the inoculum was determined in previous experiments. At 27 and 70 days of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird; Diseases; Poultry production; Protozoan parasites. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000500057 |
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| Milbradt,EL; Okamoto,AS; Padovani,CR; Fascina,VB; Silva,TM; Altarúgio,R; Hataka,A; Schmidt,EMS; Andreatti Filho,RL. |
| ABSTRACT It is estimated that Salmonella causes one million illnesses in the United States annually, with 19,000 hospitalizations and 380 deaths. There are various serotypes of this bacterium, and the serotypes Typhimurium and Enteritidis are commonly isolated from outbreaks and, in most cases, present resistance to the antibiotics utilized in clinical medicine. One of the current theories to explain the emergence of bacterial resistance is the continuous use of antibiotics as growth promoters in animal feeds. Despite the lack of evidences that antibiotic growth promoters cause bacterial resistance, the poultry industry has explored strategies to reduce or to eliminate the use of antibiotic growth promoters in the production chain, including the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Commercial turkey; Competitive exclusion; Organic acid; Salmonella Enteritidis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400551 |
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| 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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