Victor Fernando Büttow Roll
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View article: Performance, carcass yield, and intestinal morphology of broilers supplemented with Saccharomyces boulardii or Saccharomyces cerevisiae and reared on different litter substrates
Performance, carcass yield, and intestinal morphology of broilers supplemented with Saccharomyces boulardii or Saccharomyces cerevisiae and reared on different litter substrates Open
Aim of study: To evaluate the performance, carcass yield, and intestinal morphology of broilers supplemented with the yeasts Saccharomyces boulardii or Saccharomyces cerevisiae and housed on wood shavings, rice husk, or a 50% mixture of th…
View article: Performance, carcass yield, and meat quality of broilers fed a diet containing Bacillus thuringiensis var. israelensis
Performance, carcass yield, and meat quality of broilers fed a diet containing Bacillus thuringiensis var. israelensis Open
This study aimed to evaluate the effect of Bacillus thuringiensis var. israelensis (Bti) on the performance, organ weights, carcass yield, and meat quality of chickens. A total of 288 male and female one-day-old Cobb chicks were either fed…
View article: An assessment of Bacillus thuringiensis var. israelensis effects on hematology, intestinal morphology, and testicular growth in chickens
An assessment of Bacillus thuringiensis var. israelensis effects on hematology, intestinal morphology, and testicular growth in chickens Open
This study aimed to evaluate the effects of dietary supplementation with Bacillus thuringiensis var. israelensis (Bti) on hematological parameters, intestinal morphometry, and testicular growth in chickens. A total of 288 Cobb chicks, comp…
View article: Impact of body weight at 19 weeks of Embrapa 051 layers on performance, nest utilization, and egg quality throughout the laying cycle
Impact of body weight at 19 weeks of Embrapa 051 layers on performance, nest utilization, and egg quality throughout the laying cycle Open
A total of 860 Embrapa 051 pullets were allocated into three groups based on their 19-week body weights (heavy: 1.48 kg ± 0.01 SD, N= 172 birds, medium: 1.32 kg ± 0.039 SD, N= 516 birds, light: 1.19 kg ± 0.019 SD, N=172 birds) and housed i…
View article: Internal egg quality of hens fed diets supplemented with natural pigments and canthaxanthin
Internal egg quality of hens fed diets supplemented with natural pigments and canthaxanthin Open
The objective of this work was to evaluate the influence of the supplementation with natural pigments and canthaxanthin in wheat- and corn-based diets on the internal egg quality of laying hens. A total of 820 ISA Brown hens, at 78 weeks o…
View article: Saccharomyces Boulardii and Saccharomyces Cerevisiae Improve Immunity in Broilers Vaccinated Against Pasteurella Multocida and Salmonella Gallinarum
Saccharomyces Boulardii and Saccharomyces Cerevisiae Improve Immunity in Broilers Vaccinated Against Pasteurella Multocida and Salmonella Gallinarum Open
This study evaluated the impact of dietary Saccharomyces boulardii and Saccharomyces cerevisiae on the immunity of birds vaccinated against Pasteurella multocida and Salmonella gallinarum. A total of 105 male Cobb 500 broilers were divided…
View article: Different phytase levels and energy densities in broiler diets on performance, nutrient digestibility, and bone integrity from 28 to 35 days of age
Different phytase levels and energy densities in broiler diets on performance, nutrient digestibility, and bone integrity from 28 to 35 days of age Open
The study was carried out with the objective of evaluating the effects of using phytase levels at different energy densities in the diet of broilers, from 28 to 35 days of age. The experimental diets contained increasing levels of apparent…
View article: Cut yield and meat quality of brown eggshell laying hens housed in an alternative system and submitted to different feeding volumes
Cut yield and meat quality of brown eggshell laying hens housed in an alternative system and submitted to different feeding volumes Open
The aim was to evaluate the effect of different feeding volumes on the cut yield and meat quality of brown eggshell laying hens strain Embrapa 051 (E051) during the laying cycle, reared in an alternative system and slaughtered at 73 weeks,…
View article: Phytate-phosphorus and phytase on performance, bone characteristics, tissue and serum mineral concentration on broilers
Phytate-phosphorus and phytase on performance, bone characteristics, tissue and serum mineral concentration on broilers Open
Male broiler chickens (384), Cobb 500, were housed in metabolic cages to assess the efficacy of phytase in diets with low and high phytate-phosphorus on the performance, bone physical characteristics, tissue and serum mineral deposits. Bir…
View article: Different phytase levels and energy densities in broiler diets on performance, nutrient digestibility, and bone integrity from 28 to 35 days of age
Different phytase levels and energy densities in broiler diets on performance, nutrient digestibility, and bone integrity from 28 to 35 days of age Open
The study was carried out with the objective of evaluating the effects of using phytase levels at different energy densities in the diet of broilers, from 28 to 35 days of age. The experimental diets contained increasing levels of apparent…
View article: PRODUCTIVE PERFORMANCE AND EGG QUALITY OF JAPANESE QUAILS FED WITH WHOLE RICE DIETS
PRODUCTIVE PERFORMANCE AND EGG QUALITY OF JAPANESE QUAILS FED WITH WHOLE RICE DIETS Open
This study aimed to evaluate the effects of substituting corn with whole rice (WR) in the diet of Japanese quails (Coturnix coturnix japonica) on productive performance, egg quality, sensory characteristics of eggs, and yolk color. One hun…
View article: Performance, carcass characteristics and litter moisture in broilers housed at two densities
Performance, carcass characteristics and litter moisture in broilers housed at two densities Open
The effect of stocking density in broiler chickens (11.08 and 13.20 birds m-2), between 5 and 45 days of age, was assessed with regard to performance, cut yield, litter moisture and frequency of pododermatitis injuries. Further, 476 one-da…
View article: Dietary hybrid phytase and carbohydrases on nutrient digestibility and bone quality of broiler chickens
Dietary hybrid phytase and carbohydrases on nutrient digestibility and bone quality of broiler chickens Open
The objective of this work was to evaluate the effect of the use of hybrid phytase, alone or combined with carbohydrases, in poultry diets with nutritional reductions of calcium, available phosphorus, and metabolizable energy on the nutrie…
View article: [Influence of adiposity during pregnancy of Crioulo mares on the fat accumulation in their foals]
[Influence of adiposity during pregnancy of Crioulo mares on the fat accumulation in their foals] Open
This work investigated the influence of adiposity on pregnant Crioulo mares on the weight and fat deposition of their foals from birth to four months of life. Twenty-eight Crioulo mares were evaluated during the final third of gestation, d…
View article: Performance, metabolic efficiency and egg quality in Japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period
Performance, metabolic efficiency and egg quality in Japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period Open
This study aimed to evaluate the use of acidulated soybean soapstock in association with lecithin on productive performance, metabolic efficiency in the utilization of nutrientes, and the egg quality of Japanese quails. A total of 192 quai…
View article: Eimeria bateri Natural Infection: Oocysts Reductions in Grey Quail (Coturnix coturnix) Treated with Bacillus thuringensis var. israelensis
Eimeria bateri Natural Infection: Oocysts Reductions in Grey Quail (Coturnix coturnix) Treated with Bacillus thuringensis var. israelensis Open
Coccidiosis, a disease caused by the parasitic Eimeria spp., affects birds of all ages, particularly young birds more intensely. Infected poultry presents significant economic losses. Bacillus thuringiensis var israelensis (Bti) is a Gram-…
View article: Hybrid Phytase and Carbohydrases in Corn and Soybean Meal-Based Diets for Broiler Chickens: Performance and Production Costs
Hybrid Phytase and Carbohydrases in Corn and Soybean Meal-Based Diets for Broiler Chickens: Performance and Production Costs Open
This study aimed to evaluate the effect of using 500 FTU/kg of hybrid phytase (created from three bacteria - Natuphos E), with or without xylanase and glucanase (560 TXU/kg; 250 TGU/kg) - Natugrain TS, in corn and soybean meal-based diets,…
View article: FACTORS THAT AFFECT THE THERMAL STABILITY OF BOVINE MILK AND THE USE OF ALCOHOL TEST IN THE MILK INDUSTRY – A REVIEW
FACTORS THAT AFFECT THE THERMAL STABILITY OF BOVINE MILK AND THE USE OF ALCOHOL TEST IN THE MILK INDUSTRY – A REVIEW Open
The dairy industry requires good quality milk with an adequate yield that does not affect the industrial process. Therefore, to produce safe food for consumers aiming to increase the shelf life of the product, the before mentioned industry…
View article: An assessment of the impacts of litter treatments on the litter quality and broiler performance: A systematic review and meta-analysis
An assessment of the impacts of litter treatments on the litter quality and broiler performance: A systematic review and meta-analysis Open
None of the litter treatments influenced the feed intake of broilers. Meta-analyses of the selected studies showed positive and significant effects of the litter treatments on broiler performance and litter quality when compared with contr…
View article: Performance, metabolic efficiency and egg quality in Japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period
Performance, metabolic efficiency and egg quality in Japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period Open
This study aimed to evaluate the use of acidulated soybean soapstock in association with lecithin on productive performance, metabolic efficiency in the utilization of nutrientes, and the egg quality of Japanese quails. A total of 192 quai…
View article: Hybrid Phytase and Carbohydrases in Corn and Soybean Meal-Based Diets for Broiler Chickens: Performance and Production Costs
Hybrid Phytase and Carbohydrases in Corn and Soybean Meal-Based Diets for Broiler Chickens: Performance and Production Costs Open
This study aimed to evaluate the effect of using 500 FTU/kg of hybrid phytase (created from three bacteria - Natuphos E), with or without xylanase and glucanase (560 TXU/kg; 250 TGU/kg) - Natugrain TS, in corn and soybean meal-based diets,…
View article: Influence of Pichia pastoris X-33 produced in industrial residues on productive performance, egg quality, immunity, and intestinal morphometry in quails
Influence of Pichia pastoris X-33 produced in industrial residues on productive performance, egg quality, immunity, and intestinal morphometry in quails Open
This study was conducted in quails to evaluate the probiotic potential of Pichia pastoris X-33, cultivated in parboiled rice effluent supplemented with biodiesel glycerol or in standard medium Yeast Extract–Peptone–Dextrose (YPD). Forty-da…
View article: Organoleptic characteristics of eggs produced by Japanese quails fed with levels of by-products from the soybean oil industry
Organoleptic characteristics of eggs produced by Japanese quails fed with levels of by-products from the soybean oil industry Open
By-products of the refining of vegetable oils can be used in the feeding of laying birds. However, they may alter the sensory properties of the eggs. Acidulated soy soapstock oil (ASS) is a by-product containing high amounts of free fatty …
View article: Performance and metabolizability of diets in quails fed with increasing levels of soybean acid oil
Performance and metabolizability of diets in quails fed with increasing levels of soybean acid oil Open
This study evaluated the effects of soybean acid oil (OAS) on oxidation products specific extinctions coefficients (K232 and K270) and metabolizability of diets and productive performance in quails. A total of 80 dual-purpose quails were u…
View article: Replacing soybean oil with increasing levels of soybean acid oil in diets of coturnix quails (Coturnix coturnix coturnix) and the effects on egg quality
Replacing soybean oil with increasing levels of soybean acid oil in diets of coturnix quails (Coturnix coturnix coturnix) and the effects on egg quality Open
The effects of increasing levels of soybean acid oil in diets of quails on the quality of eggs were evaluated over a period of 56 days. A completely randomized design with five treatment levels of soybean acid oil (0, 2, 4, 6, and 8%) as a…
View article: Blood parameters as biomarkers in a Salmonella spp. disease model of weaning piglets
Blood parameters as biomarkers in a Salmonella spp. disease model of weaning piglets Open
Results reported marginal deficiencies of zinc in piglets at weaning. Moreover, plasmatic zinc, copper and iron presented good correlations with weight gain (r 0.57, r -0.67, r 0.54 respectively; P < 0.01). Blood electrolytes (Na+, Cl- and…