Digestibility and energy values of intact, disrupted and extracts from brewer's dried yeast fed to rainbow trout (Oncorhynchus mykiss)

Rumsey, G.L.; Hughes, Steven G.; Smith, Robert R.; Kinsella, John E.; Shetty, Kalidas

doi:10.1016/0377-8401(91)90059-2

Cited by 95 publications

(77 citation statements)

References 13 publications

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“…In this study it was not noticed (P>0.05 or 0.01) the influence of the yeast sub-product processing system over the performance of pacu alevines, different from what is said by other authors regarded to the existence of feeding and nutritional benefits when autolyzed yeast is used (broken cell wall), due to greater availability and use of S. cerevisiae nutrients by other fish species (Rumsey et al, 1991b).…”

Section: Resultscontrasting

confidence: 99%

Levels of yeast and its by-products on pacu juveniles feeding

2010

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-This study was conducted to evaluate the inclusion of two levels (2.5 e 5.0%) of dried yeast (Saccharomyces cerevisiae) and its by-products, disrupted yeast cells and yeast cell wall in diets for juveniles of pacu (Piaractus mesopotamicus).Production performance, body and plasmatic composition indexes were evaluated. Seven isoproteic (26% digestible protein) and isoenergetic (3.100 kcal digestible energy) diets were formulated containing increased levels of each ingredient. The diets were supplied for 86 days, "ad libitum". Yeast and by-products increase feed efficiency and protein use, when compared to the control diet. Carcass composition and plasmatic (glucose, cortisol, uric acid, urea and plasmatic protein) levels are not affected by the test ingredient supplementation.Key Words: Piaractus mesopotamicus, pre-biotic, production performance, Saccharomyces cerevisiae, yeast by-products Níveis de levedura e derivados na dieta de juvenis de pacuRESUMO -Este estudo foi realizado com o objetivo de avaliar os efeitos da suplementação de dois níveis (2,5 e 5,0%) de levedura íntegra desidratada (Saccharomyces cerevisiae) e seus derivados, autolisado e parede celular, em dietas para juvenis de pacu (11,98 g e 8,5 cm). Foram avaliados o desempenho produtivo, a composição corporal e os parâmetros plasmáticos de juvenis de pacu. Utilizaram-se sete dietas isoproteicas (26% de proteína digestível por kg de ração) e isoenergéticas (3.100 kcal de energia digestível por kg de ração), cada uma com um nível de cada ingrediente-teste e mais uma dieta controle (sem adição de levedura). A suplementação da levedura e de derivados realizada durante 86 dias melhorou a eficiência alimentar e a utilização proteica pelos juvenis de pacu em comparação à dieta sem adição desses ingredientes.A composição de carcaça e os níveis plasmáticos (ureia, ácido úrico, proteína, cortisol e glicose) não são afetados pela suplementação dos ingredientes-teste.Palavras-chave: derivados de levedura, desempenho produtivo, Piaractus mesopotamicus, prebiótico, Saccharomyces cerevisiae Revista Brasileira de Zootecnia

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Section: Resultscontrasting

confidence: 99%

Levels of yeast and its by-products on pacu juveniles feeding

2010

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“…GDDY apparent digestibility coefficients for protein were higher than all other ingredients that were reported by Gaylord et al (2008). GDDY results show improved protein digestibility when compared to brewer's dried yeast as reported by Rumsey et al (1991a). Lower digestibility coefficients for dry matter and energy were observed for GDDY compared to fish meal most likely due to the relatively high nitrogen free extract content of the ingredient.…”

Section: Discussionmentioning

confidence: 59%

“…Rumsey et al (1991aRumsey et al ( , 1991b reported that most BDY products were approximately 20-25% nucleic acid. Rainbow trout utilize nucleic acid nitrogen differently than they utilize nitrogen supplied from amino acids.…”

Section: Discussionmentioning

confidence: 99%

“…However, selected single-cell proteins have shown potential as dietary protein sources. Rumsey et al (1991a) determined the digestibility of brewer's dried yeast (BDY) processed by different methods in rainbow trout and then measured growth performance when BDY was included as the primary protein source in the diet. When BDY was processed into a protein isolate, protein digestibility increased to 87.3% compared to 63.2% for the nonprocessed intact BDY.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of grain distillers dried yeast as a fish meal substitute in practical-type diets of juvenile rainbow trout, Oncorhynchus mykiss

Hauptman

Barrows²,

Block³

et al. 2014

Aquaculture

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Grain distillers dried yeast (GDDY) is a single-cell protein obtained as a co-product during the production of fuel ethanol that may have potential as a protein replacement for rainbow trout. The goal of this study was to examine the suitability of GDDY as a replacement for fish meal on a digestible protein basis in rainbow trout diets. An in-vivo digestibility study was performed to determine the nutrient availability of GDDY. Subsequently, a control diet containing 42% digestible protein and 20% lipid was formulated to replace fish meal protein with GDDY protein at eight different levels (0, 25, 37.5, 50, 62.5, 75, 87.5, and 100%). Diets were fed to juvenile rainbow trout stocked into four replicate tanks per dietary treatment (30 fish/tank) and fed twice daily for nine weeks. High GDDY inclusion rates significantly altered rainbow trout growth and feed conversion but not feed intake. There were no significant differences in production performance in fish fed the 25% GDDY and 37.5% GDDY diets when compared to fish fed the control diet, but further dietary fish meal replacement generally decreased fish performance. Further research is warranted to determine why fish performance decreased with higher inclusion levels of GDDY in spite of similar feed intake among levels.Published by Elsevier B.V.

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“…Nitrogen (N) from the purine and pyrimidine bases in RNA and DNA makes up approximately 12% of the N in BPM. This level is low compared with that of many other single-cell proteins of bacterial origin (Braude et al, 1977;Tiemeyer et al, 1981;Rumsey et al, 1991;Kiessling and Askbrandt, 1993) but considerably higher than that of fish meal (Greife, 1984), wheat, barley, maize and soya beans (Herbel and Montag, 1987;Imafidon and Sosulski, 1990;Lassek and Montag, 1990).…”

Section: Introductionmentioning

confidence: 87%

Bacterial protein meal in diets for growing pigs: effects on protein and energy metabolism

Hellwing¹,

Tauson²,

Kjos

et al. 2007

Animal

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This experiment investigated the effects of increasing the dietary content of bacterial protein meal (BPM) on the protein and energy metabolism of pigs from weaning to a live weight of 80 kg. Four litters with four castrated male pigs in each litter were used. The litters were divided into two blocks according to age. One pig from each litter was fed one of the four experimental diets. Soya-bean meal was replaced with BPM on the basis of digestible protein, and the BPM contents in the four diets were 0% (BP0), 5% (BP5), 10% (BP10) and 15% (BP15), corresponding to 0%, 17%, 35% and 52% of the digestible nitrogen (N), respectively. Four balance periods were performed, at the start of which the pigs weighed 9.5 kg, 20.7 kg, 45.3 kg and 77.2 kg, respectively. Once during each balance period, 22-h respiration experiments were performed using indirect calorimetry. Daily weight gain, feed intake and feed conversion rate were the same for all diets. The apparent digestibility of N was lower on diet BP10 than on BP0 (P ¼ 0.002), whereas the apparent digestibility of energy was similar on all diets. The retention of nitrogen did not differ between diets and was 1.50, 1.53, 1.33 and 1.46 g N per kg 0.75 per day on BP0, BP5, BP10 and BP15, respectively. Neither metabolisable energy intake nor heat production were affected by inclusion level of BPM. Retention of energy was 620 (BP0), 696 (BP5), 613 (BP10) and 664 kJ/kg 0.75 per day (BP15), the differences among diets being non-significant. The N-free respiratory quotient was similar on all diets. It was concluded that the overall protein and energy metabolism in growing pigs were not affected when up to 50% of dietary N was derived from BPM.

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Digestibility and energy values of intact, disrupted and extracts from brewer's dried yeast fed to rainbow trout (Oncorhynchus mykiss)

Cited by 95 publications

References 13 publications

Levels of yeast and its by-products on pacu juveniles feeding

Levels of yeast and its by-products on pacu juveniles feeding

Evaluation of grain distillers dried yeast as a fish meal substitute in practical-type diets of juvenile rainbow trout, Oncorhynchus mykiss

Bacterial protein meal in diets for growing pigs: effects on protein and energy metabolism

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