Desempenho, digestibilidade, composição corporal e morfologia intestinal de pintos de corte recebendo dietas contendo levedura de cana-de-açúcar

Lopes, Cláudia da Costa; Rabello, Carlos Bôa-Viagem; Júnior, Valdemiro Amaro da Silva; Holanda, Mônica Calixto Ribeiro de; Arruda, Emmanuele Maria Florêncio de; Silva, Jaqueline de Cássia Ramos da

doi:10.4025/actascianimsci.v33i1.10787

Cited by 9 publications

(6 citation statements)

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“…Similar results were obtained by Yang et al (2007) and Lopes et al (2011), who did not observe effects of MOS or whole yeast cell on body weight and weight gain of 21-day-old and seven-dayold broilers, respectively.…”

Section: Resultssupporting

confidence: 75%

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Sugarcane yeast inclusion for broilers at post-hatch

et al. 2017

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-A total of 450 one-day-old male broiler chicks were used to evaluate the effect of the sugarcane yeast on performance, body composition, and development of the intestinal mucosa. The experiment was carried out in a completely randomized design with five treatments and six replicates of 15 birds. Sugarcane yeast was included in the experimental diets at the levels of 0, 12.5, 25.0, 37.5, and 50.0 g kg −1 . Body weight, weight gain, feed intake, and feed conversion were determined. At the end of the experiment, four broiler chicks were slaughtered per experimental unit: two were used for evaluation of moisture content, crude protein, fat, and body ash and the other two were used in the collection of small-intestine segments for evaluation of villus height and crypt depth. The increasing yeast levels resulted in a linear increase in feed intake and feed conversion. Inclusion of more than 14.4 g kg −1 yeast resulted in a reduction of body ash content. Villus height and crypt depth in the jejunum showed maximum values at the sugarcane yeast levels of 20.9 and 20.6 g kg −1 , respectively. In the ileum, the crypt depth reduction at the level of 25.6 g kg −1 also resulted in an increase in villus:crypt ratio. Yeast inclusion increases feed intake and feed conversion, improves body mineral absorption, and increases villus height in the jejunum and the villus:crypt ratio in the ileum of broiler chicks.

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Section: Resultssupporting

confidence: 75%

“…Additionally, the extract of yeast has nucleotides and inositol, which help the cell synthesis process in the villus by increasing its size. Lopes et al (2011) worked with whole yeast cell and observed greater villus heights in the segments of the small intestine on the 7th day of age, without any effects on performance.…”

Section: Introductionmentioning

confidence: 99%

Sugarcane yeast inclusion for broilers at post-hatch

et al. 2017

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“…De acordo com Nunes et al (2009) os resultados referente à morfologia intestinal no duodeno não evidenciaram efeito positivo dos aditivos alternativos (prebiótico e probiótico) em relação ao grupo controle, sendo que a altura do vilo e a profundidade da cripta encontrada são superiores a do presente trabalho. Lopes et al (2011), não observaram efeito da inclusão de levedura sob nível de inclusão de 0; 1,25; 2,5; 3,75 e 5,0% em nenhum dos parâmetros avaliados em pintos de oito dias. A altura do vilo e a profundidade da cripta encontradas por Nunes et al (2009) e Lopes et al (2011 não se equipararam com os resultados obtidos, visto que as análises por eles realizadas foram experimentais e não a campo, e isso pode ter influenciado nos resultados dos experimentos.…”

Section: Resultsunclassified

Dietas Suplementadas Com Óleos Essenciais Não Promove Alterações Na Morfometria De Vilos E Criptas Do Duodeno De Frangos De Corte

Zardo

Otutumi

Amaral

et al. 2015

ArqVet

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Taniara Suelen Mezalira 6 ZARDO, A.; OTUTUMI, L. K.; PREVIATO DO AMARAL, P. F. G.; GERMANO, R. de M.; FERREIRA, F. A.; DOURA-DO, M. R.; MEZALIRA, T. S. Dietas suplementadas com óleos essenciais não promove alterações na morfometria de vilos e criptas do duodeno de frangos de corte. Arq. Ciênc. Vet. Zool. UNIPAR, Umuarama, v. 18, n. 2, p. 115-119, abr./jun. 2015.RESUMO: Devido à necessidade da substituição dos antimicrobianos como melhoradores de desempenho por aditivos alternativos, inúmeros produtos estão em estudo. Dentre esses estão os óleos essenciais que apresentam características antimicrobianas, contribuindo para manutenção da integridade intestinal e consequentemente melhora no desempenho, garantindo a segurança alimentar, evitando a resistência cruzada, bem como a contaminação do meio ambiente. Dessa forma, objetivou-se avaliar os efeitos da inclusão de uma mistura de óleos essenciais extraídos de orégano, alho, limão, alecrim, timo, eucalipto e laranja doce, na dosagem de 300 mL para 500 L de água de bebida, sobre a morfometria da mucosa do duodeno de frangos de corte. Foram avaliados quatro aviários tratados com óleos essenciais na ração e quatro aviários controle, durante o período de um a sete dias de idade, contendo pintainhos da linhagem Cobb. Para a análise morfométrica, cinco aves de cada aviário (total de 40 aves) foram mortas, utilizando-se de protocolo anestésico, medicação pré-anestésica de xilazina 4mg/Kg IM. e após solução de tiopental na dose de 25 mg/Kg IV. Após eutanásia, foram colhidas amostras de material do intestino delgado, correspondente ao segmento duodenal, para realização das medições de altura de vilo e profundidade de cripta. Não foram verificados efeitos sobre a altura de vilo e profundidade de cripta nos animais tratados com óleos essenciais (P>0,05). Nas condições em que foram realizados o experimento, pode-se concluir que os óleos essenciais não alteraram a altura de vilo e a profundidade de cripta do duodeno. PALAVRAS-CHAVE: Altura de vilo. Intestino Delgado. Morfometria. Profundidade de cripta. DIETS SUPPLEMENTED WITH ESSENTIAL OILS DO NOT PROMOTE ALTERATIONS IN VILLOUS MORPHOMETRY AND DUODENUM CRYPT OF BROILERSABSTRACT: Due to the need for replacement of antimicrobials as performance enhancers to alternative additives, several products are being studied. Among them, essential oils that exhibit antimicrobial properties are being analyzed, which contribute to the maintenance of intestinal integrity and consequently improving performance, assuring food safety, preventing cross-resistance, as well as contamination of the environment. Thus, the objective of this study is to evaluate the effects of adding a mixture of essential oils from oregano, garlic, lemon, rosemary, thyme, eucalyptus and sweet orange, at a dosage of 300 mL for 500 L of drinking water, on the morphometry of duodenal mucosa of broilers. Four poultry aviaries treated with essential oils in the diet and four control poultry aviaries were evaluated during the period from one to seven day old, containing Cobb...

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“…Sugarcane yeast and protein feed have been studied by researchers in the search for a substitute to soybean meal in poultry feed (FREITAS et al, 2013), as this is a product that is widely available on the market through its link to the processes of ethanol production (LOPES et al, 2011). The interest in this ingredient concerning animal feed is founded principally on its high rate of protein, at around 37.20% of crude protein, however, only 21.58% of this is digestible (ROSTAGNO et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Enzyme complex and Saccharomyces cerevisiae in diets for broilers in the initial phase

Sousa

Dourado

Biagiotti

et al. 2018

Rev. bras. saúde prod. anim.

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SUMMARY This study aimed at evaluating the use of exogenous enzymes in diets with Saccharomyces cerevisiae and their impact on zootechnical performance, carcass yield, intestinal histomorphometry and of broiler diets in the initial phase. A completely randomized design was used in a 2×3 + 1 factorial arrangement, with two levels of enzyme complex (EC), (0 and 200g / ton), three yeast levels (0, 6 and 12%) and a control diet, making up seven treatments, with five replicates of 20 broilers per experimental unit. We evaluated the performance (feed intake, weight gain and feed conversion ratio), carcass yield and cuts, histomorphometry of the small intestine (height, circumference and width of villi, height and width of the crypt, thickness of the intestinal muscle wall and villi/crypt relationship). From 1 to 7 and 1 to 21 days, the inclusion of yeast led to reduced broiler performance. At 21 days, the addition of EC resulted in an increase of (p <0.05) in the thickness of the muscular wall of the duodenum and decreased the width of the crypt in the ileum. The 12% level of yeast without the EC provided a thicker jejunum intestinal muscle wall when compared to the positive control. There was no significant effect on carcass yield and cuts between treatments. In conclusion, the inclusion of yeast reduces performance from 1-21 days. The enzyme complex and yeast does not change the performance or carcass yield, however, it does bring benefits to the intestinal mucosa.

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Desempenho, digestibilidade, composição corporal e morfologia intestinal de pintos de corte recebendo dietas contendo levedura de cana-de-açúcar

Cited by 9 publications

References 14 publications

Sugarcane yeast inclusion for broilers at post-hatch

Sugarcane yeast inclusion for broilers at post-hatch

Dietas Suplementadas Com Óleos Essenciais Não Promove Alterações Na Morfometria De Vilos E Criptas Do Duodeno De Frangos De Corte

Enzyme complex and Saccharomyces cerevisiae in diets for broilers in the initial phase

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