Efeito da fonte protéica e do tratamento físico do concentrado, no desempenho de bovinos em confinamento e impacto ambiental dos dejetos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Digestibilidade e exigência de lisina, proteína e energia em dietas para a tilápia do nilo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fontes protéicas em dietas à base de cana-de-açúcar para novilhas leiteiras

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desempenho produtivo e qualidade da carne de bovinos Nelore recebendo fontes de lipídio na dieta

Pós-graduação em Zootecnia - FMVZ

Frequência da suplementação de bovinos da raça Nelore mantidos em pastagens

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Nutrient intake, productive performance and body measurements of dairy heifers fed with different sources of protein

This study evaluated the effect of different protein sources (soybean meal, cottonseed meal, peanut meal and sunflower meal) on dry matter and nutrient intake, productive performance and body measurements of dairy heifers, Holstein x Zebu, recreated in confinement. The experiment consisted in a randomized complete block design made up by 6 replications and 4 treatments. The mean values of ingestion of ether extract (EEI, kg day-1) were statistically different (p < 0.05). The neutral detergent fiber intake (NDFI, %BW) also presented differences (p < 0.05), with higher values in the diet containing sunflower meal (1.01% BW) in relation to the diet with soybean meal (0.84% BW). The average daily weight gain using the diet with soybean meal was superior (0.95 kg day-1) to the diet with sunflower meal (0.82 kg day-1), and considering the final body weight, the diet with soybean meal was superior to the other treatments (p < 0.05). The heart girth presented greater association with body weight (0.93). The soybean meal promoted the best productive performance of crossbred Holstein x Zebu heifers fed diets based on sugarcane. However, cottonseed meal, peanut meal and sunflower meal can be possible alternatives to soybean meal.

Produção de L (+)-ácido lático por Lactobacillus casei Ke11 utilizando insumos agroindustriais

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Exigência de proteína digestível em dietas para juvenis de tambaqui e a dinâmica do crescimento muscular por aspectos morofológicos e turnover isotópico do carbono-13 e do nitrogênio-15

Pós-graduação em Zootecnia - FCAV

Different true-protein sources do not modify the metabolism of crossbred Bos taurus x Bos indicus growing heifers

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fontes proteicas para vacas leiteiras

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Effect of poultry viscera meal inclusion in broiler diets in different rearing periods on performance, carcass and parts yields

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Digestibility for dogs and cats of meat and bone meal processed at two different temperature and pressure levels

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Corn and soybean meal metabolizable energy with the addition of exogenous enzymes for poultry

Two metabolism assays were carried out to determine corn and soybean meal metabolizable energy when enzymes were added. In the first trial, 35 cockerels per studied feedstuff (corn and soybean meal) were distributed in a completely randomized experimental design with four treatments of seven replicates of one bird each. The evaluated treatments were: ingredient (corn and soybean meal) with no enzyme addition, with the addition of an enzyme complex (xylanase, amylase, protease - XAP), xylanase, or phytase. Precise feeding method was used to determine true metabolizable energy corrected for nitrogen balance (TMEn). The use of enzymes did not result in any differences (p>0.05) in soybean meal TMEn, but phytase improved corn TMEn in 2.3% (p=0.004). In the second trial, 280 seven-day-old broiler chicks were distributed in a completely randomized experimental design with seven treatments of five replicates of eight birds each. Treatments consisted of corn with no enzyme addition or with the addition of amylase, xylanase, phytase, XAP complex, XAP+phytase combination, or xylanase/ pectinase/β-glucanase complex (XPBG). Corn was supplemented with macro and trace minerals. Total excreta collection was used to determine apparent metabolizable energy corrected for nitrogen balance (AMEn). Differences were observed (p=0.08) in AMEn and dry matter metabolizability coefficient (p=0.03). The combination of the XAP complex with phytase promoted a 2.11% increase in corn AMEn values, and the remaining enzymes allowed increased between 0.86% and 1.66%.

Sunflower meal in commercial layer diets formulated on total and digestible amino acids basis

An experiment was conduced to evaluate the inclusion of sunflower meal (SBM) in commercial layer diets formulated on total or digestible amino acids basis. One hundred forty-four 41-week-old Lohmann LSL layers were distributed in a completely randomized experimental design in a 2 x 4 factorial arrangement with three replications of six birds each. Treatments consisted of a combination of four SBM inclusion levels SBM(0%, 4%, 8%, and 12%) and feed formulation according two amino acid recommendations (total or digestible). The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for each period. In the last two days of each period, three eggs per replication were collected to evaluate egg quality (Haugh units, specific gravity, egg weight, eggshell thickness, and eggshell percentage). Hens fed on total amino acid recommendation presented the highest values for egg weight. Diets formulated on digestible amino acids basis showed an improvement in eggshell percentage and egg specific gravity. SBM addition in commercial layer diets did not influence performance; however, increasing SBM dietary levels SBM improved eggshell quality.

Effect of supplementing compost with grapeseed meal on Agaricus bisporus production

BACKGROUND: This work assesses the agronomic performance of grapeseed meal, before and after oil extraction, in nutritional compost supplement when growing the mushroom species Agaricus bisporus (Lange) Imbach. The effect of formaldehyde treatment before using this compost is also considered. Materials were applied at different doses at spawning. Along with non-supplemented compost, three commercial nutritional supplements were used as controls.RESULTS: In general terms, grapeseed meal performance was similar to that of commercial delayed-release nutrients, but improved the non-supplemented compost response. We highlight that grapeseed enhances performance as larger yields of harvested mushrooms were obtained with greater dry weight content; however, their protein content was lower. The best performance was displayed by fresh formaldehyde-treated grapeseed (6000 ppm) when applied to the 10 g kg(-1) compost dose.CONCLUSIONS: Our findings suggest that grapeseed meal offers a great potential to be applied on a commercial scale. The addition of grapeseed resulted in an enhanced performance as shown by the higher number of harvested mushrooms. The use of grapeseed meal (extracted or non-extracted), a low-cost ingredient with high levels of carbohydrates, may suppose an economic profit on the basis of the positive effect of adding carbon in the mushroom cultivation. (C) 2012 Society of Chemical Industry