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The aim of study was to investigate the effect of yeast cell walls (mannanoligosaccharides - MOS) supplemented to a sow's diet on some blood parameters of sows and their piglets. The investigations were carried out in two experiments with two groups of 30 sows each. The sows of groups 1 and 3 (control) received the basal diet, groups 2 and 4 (MOS) - the same diets, supplemented with yeast cell walls preparation. The sow basal diet in experiment I contained 40% of wheat and in experiment II - 46% of triticale. The level of MOS supplementation (8 g per sow daily) was based on the manufacturer's recommendations. A total of 782 piglets were received. The piglets were weighed at birth and on days 14 and 28 of age. The health status of the piglets, their mortality rate from birth until weaning, and diarrhoea incidences were recorded daily. Blood plasma contents of total protein, uric acid, urea, selected mineral elements (Fe, Cu, Zn), total cholesterol, triacyloglycerol, HDL cholesterol, and LDL cholesterol, blood plasma activities of catalase (CAT), superoxide dismutase (SOD), aminotransferase alanine, aminotransferase aspartate, dehydrogenase lactate, phosphatase alkaline, and the level of ferric reducing ability of plasma (FRAP) were determined. The addition of MOS to sows' diet increased the values of FRAP and contents of Fe and Cu in sows, and increased the activity of SOD and CAT, level of FRAP, and contents of urea and Fe and decreased the concentration of cholesterol and LDL-cholesterol in piglets. The receiving MOS supplement. The obtained results showed that the used indicators of the antioxidant system especially SOD, CAT, and FRAP, are very sensitive exponents of antioxidant status of swine. Species of grain (wheat or triticale) did not have any significant influence on the analysed sows' and piglets' blood parameters.
The study aimed at evaluation the effect of mannanoligosaccharides (MOS) and zinc-bacitracin (ZnB) administered continuously (+) or intermittently (+/-) upon growing performance, carcass and meat traits, blood profile and tissue morphology of growing rabbits. One hundred and twenty five, 25 days-old rabbits were distributed among 5 groups fed the same basal diet: the control group did not receive any supplements; MOS+ group fed mannanoligosaccarides at 0.083 g/rabbit/day;MOS+/- group fed MOS at the same concentration as MOS+ group, but only two days/week; ZnB+group received Zinc bacitracin at 0.083 g/rabbit/day; ZnB+/- group fed ZnB at the same level as ZnB+ group but only two days/week. The experiment lasted from day 25 to 81 of life. The mortality rate in the control group (36%) was higher (P<0.05) than in MOS+/- (12%) and ZnB+ groups (12%).MOS and ZnB administered intermittently increased (P<0.01) dressing percentage as compared to the control group. The liver percentage increased (P<0.01) due to use of MOS (+ or +/-) and ZnB (+). ZnB (+ or +/-) increased (P<0.05) the protein percentage of meat as compared to the control group, while the continuative administration of MOS was able to reduce (P<0.05) the fat percentage as related to the control group. Both supplements and both administration protocols increased (P<0.01) meat tenderness and water holding capacity in respect to the control group. Continuous ZnB administration had deleterious effects on liver, kidney and ileum morphology. MOS could replace ZnB from weaning to slaughter age of rabbits without negative effects on performance and blood profiles causing no alterations in tissue morphology as compared to the control group. In addition, the MOS can be administered intermittently, reducing the production costs.
The response of broiler chickens on supplemented diets with Avilamycin (10 mg kg-1) or mannanoligosaccharides 1.0 or 2.0 / 1.0 / 0.5 g kg-1 analysed on basic of performance, carcass quality, number of microorganisms in jejunum and caecum content, was determined. The performance results by antibiotic and mannanoligosaccharides (MOS) supplementation of diets were comparable. Reduced number of intestinal pathogenic microflora (E. coli, Clostridium perfringens) was visible (p<0.05) in chickens from MOS (2.0 / 1.0 / 0.5 g kg-1) group in comparisons to control animals. The highest number of Lactobacillus spp. in intestine content was observed in antibiotic group.
The aim of study was to investigate the effect of different dietary carbohydrate sources (couch grass, FOS or yeast cell walls, MOS) on the performance of piglets from birth to 84-days-of-life, diarrhea incidences, as well as on some blood parameters. A total of 286 piglets (Polish Landrace x Pietrain) of both sexes, from twenty seven litters, were used. Piglets were weaned at 28-days-of-age. From the second-week-of-age until the 14th day after weaning, the piglets were fed a commercial Prestarter mixture ad libitum, and from 42th to 84th-day-of-age they were fed a Starter diet. The mixtures did not contain antibiotics. The piglets of group I (control) received basal diets, group II (MOS) - the same diets, supplemented with a yeast cell wall preparation (Bio-Mos) and group III (FOS) - with couch grass. The level of MOS supplementation (3 g/kg diet) and couch grass (FOS) in meal form was added at the level of a 5 g/kg diet. Body weight was measured at birth, at the weaning period and at the end of the trial (84th-day-of-life). Feed intake was recorded weekly. The health status of the piglets and their diarrhea incidences were recorded daily. The mortality of piglets from birth till weaning and up until 12-weeks-of-life were recorded as well. The piglet’s diarrhea incidences (number of piglets and periods of duration) were also noted. Blood for analytical tests was taken at weaning (28th day) and on day 56 and 84 after birth from 24 piglets (4 gilts and 4 barrows from each group). The number of red blood cells (RBC), hemoglobin, hematocrit, number of white blood cells (WBC), neutrophiles, eosinophiles, basophiles, lymphocytes and monocytes in whole blood and total cholesterol, HDL-cholesterol and triglycerides in blood plasma were determined. The MOS or FOS supplement may be beneficial in piglet rearing as it reduces the piglet losses in the whole rearing period (from birth to 84 days) from 12.24% in the control group (without AGP) to 6.32% in the group fed the mixture supplemented with MOS and to 8.25% with FOS. These additives induced advantageous performance traits and lowered the level of total cholesterol and LDL-cholesterol.
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