scholarly journals Influence of vitamin A as a synthetic preparation “Microvit” on the digestibility of basic nutrients of fodder by bull-calves at their feeding with the use of fragrance granules

2020 ◽  
pp. 38-42
Author(s):  
Andrey Vladimirovich Valoshin ◽  
Aleksandr Fedorovich Krisanov

They are given data of physiological action of vitamin A in different doses  (in the form of its supplement - the pharmacological preparation “Microvit”) when introduced into diets with dry pulp on the digestibility of the main nutrients of fodder by bull-calves in the middle of the feeding cycle. The optimal dose of vitamin A was established. It is 230 IU per 1 head per day, which is 20% more than the recommended norm calculated for carotene. In this case, the digestibility of dry matter significantly increases by 3.3%, of organic one - by 2.7%, protein - by 3.0%, fiber - by 3.2%. There was also a slight tendency towards an increase in the digestibility of fat and nitrogen-free extractive substances by 1.8 and 3.0%, respectively.

2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Dorthe Yakymenko ◽  
Christine S Benn ◽  
Cesario Martins ◽  
Birgitte R Diness ◽  
Ane B Fisker ◽  
...  

2011 ◽  
Vol 40 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Hernan Vielmo ◽  
Amadeu Bona Filho ◽  
André Brugnara Soares ◽  
Tangriani Simioni Assmann ◽  
Paulo Fernando Adami

The objective of this study was to evaluate the effect of different doses of liquid swine slurry on dry matter accumulation rate and nutritive values (crude proten and neutral detergent fiber) of Tifton 85 grass pasture cultivated in southwestern Paraná from October 2005 to March 2006. It was used a complete random experimental design in a 4 x 4 factorial scheme composed of four doses of swine slurry in the plots (0, 80, 160 and 320 m³/ha) and four consecutive cuts in the subplots of the pasture. It was carried out two applications, one in the beginning of the experiment and other after 80 days. Cuts were performed every time pasture height was 40 cm. There was a dose versus cut interaction for all variables. Swine slurry promoted increase on dry matter accumulation rate only on the first cut after its application (cuts 1 and 3). Dry matter maximal yield (24.2 t/ha) was obtained at 249 m³/ha of swine slurry manure (143 and 106 m³/ha, respectively for applications 1 and 2), corresponding to 450 kg of N/ha. Percentage of crude protein increases and neutral detergent fiber of Tifton 85 grass decreases as dose of swine slurry increases, improving forage nutritive value. Use efficiency and nitrogen recovery rate decrease with addition of swine slurry doses.


2005 ◽  
Vol 3 (2) ◽  
pp. 11 ◽  
Author(s):  
Marcos Vinicius Winckler Caldeira ◽  
Peter Spathelf ◽  
Leonir Rodrigues Barichello ◽  
Hamilton Luiz Munari Vogel ◽  
Mauro Valdir Schumacher

The objective of this study was to determine the best vermicompost dose for seedling production of Apuleia leiocarpa. The experiment consisted of five treatments, which were conducted in a greenhouse. The following doses of vermicompost were tested: control (without vermicompost); 10% vermicompost; 20% vermicompost; 30% vermicompost and 40% vermicompost of the total container volume (185 cm3). The experimental design was entirely randomised. The substratum used was bark of Pinus sp., which was triturated and composted. A hundred days after seedling germination, the following variables were analysed: height and diameter growth, above ground dry matter, root dry matter and total dry matter. The 30% vermicompost doses showed to be optimum in growth response and biomass production of Apuleia leiocarpa seedlings.


2020 ◽  
pp. 65-72
Author(s):  
Н.П. Чекаев ◽  
Е.Г. Куликова ◽  
А.В. Леснов

В статье показаны результаты трехлетних полевых опытов по изучению влияния разных доз куриного помета и известкового мелиоранта на физико-химические свойства чернозема выщелоченного и урожайность возделываемых сельскохозяйственных культур на опытных участках. В результате проведенных исследований на опытном поле ФГБОУ ВО Пензенский ГАУ (Пензенская область, Мокшанский район) было выявлено, что при внесении разных доз куриного помета в последействии на второй и третий год наблюдается увеличение кислотности. Использование известкового мелиоранта снижает подкисление и повышает эффективность внесенных доз куриного помета. Применение доз куриного помета от 2 до 10 т/га из расчета на сухое вещество положительно влияли на урожайность зерна как первой культуры после внесения, так второй и третьей. Наибольшую продуктивность исследуемых культур наблюдали на вариантах с внесением от 6 до 10 т/га помета. На фоне известкования эффективность их применения увеличивалась. The article shows the results of three-year field experiments to study the effect of different doses of chicken manure and lime ameliorant on the physicochemical properties of leached chernozem and the yield of cultivated crops in the experimental plots. The studies were carried out on the experimental field of Penza State Agrarian University (Penza Region, Mokshansky District). As a result of, it was revealed that when different doses of chicken manure were applied, an aftereffect increase in acidity was observed in the second and third years. The use of a lime ameliorant reduces acidification and increases the effectiveness of the applied doses of chicken manure. The use of doses of chicken manure from 2 to 10 t/ha (dry matter) had a positive effect on the grain yield of both the first crop after application, and the second and third. The highest productivity of the studied crops was observed in the variants with the introduction of 6 to 10 t/ha of manure. Against the background of liming, the effectiveness of their application increased.


2020 ◽  
Vol 16 (5) ◽  
pp. 87-94
Author(s):  
K. H. Khatkov ◽  
N. I. Mamsirov

The agrotechnical significance of leguminous crops, in particular soybeans, consists in its ability to provide a huge bulk of vegetable protein and less nitrogen depletion of soils than non-legume crops [2]. Despite the fact that nitrogen symbiotically fixed by soybean plants is alienated with the harvest and taken out of the field with organic residues of leguminous crops, more nitrogen remains in the soil after them than with residues of other crops. In this regard soybeans are good predecessors in various stages of crop rotation. The article discusses topical issues of increasing productivity of leguminous crops, in particular, soybeans, when using different doses of ammophos against the background of its placement in various ways of main tillage of drained leached chernozems. In 2018–2019 studies were carried out to establish the influence of the optimal dose of mineral nutrition and the best method of soil cultivation on the productivity and quality indicators of soybeans of the French selection of the Amphora, Mentor and Isidor varieties. According to the results of the research, different effectiveness of the considered variants of the experiment was established. Thus, higher rates of soybean yield were noted in the later-maturing Isidor variety within 2,03–2,30 t/ha for plowing, and 1,70–1,91 for soil disking. The most cost-effective dose of mineral nutrition for all studied soybean varieties was the dose of 50 kg/ha of Ammophos (N6H26) against the background of plowing, where the profit from the increase in yield relative to the control was in the range of 2900–3650 rubles/ha, and against the background of disking soil the dose of Ammophos was 100 kg/ha (N12H52), where the profit was in the range of 1300–2050 rubles/ha.


2021 ◽  
Vol 14 (4) ◽  
pp. 1-10
Author(s):  
Lucas Ferreira de Morais ◽  
Wendy Carniello Ferreira ◽  
Francielly Rodrigues Gomes ◽  
Edésio Fialho dos Reis ◽  
Daniela Pereira Dias ◽  
...  

The objective of this work was to evaluate the effect of different doses of limestone, phosphorus, and potassium on the initial development of Anacardium humile (Cajuzinho-do-cerrado) seedlings. The experiment was conducted in a greenhouse. A randomized block design was adopted in a 3x4x4 factorial scheme (liming x phosphorus x potassium doses). The treatments consisted of three liming doses (0; 40; and 70% of base saturation), four doses of potassium chloride with 60% of K2O (0; 60; 120; and 180 kg ha-1), and four doses of triple superphosphate with 46% of P2O5 (0; 80; 160; and 240 kg ha-1), with six replications. The following characteristics were evaluated: stem diameter (SD), plant height (PH), root length (RL), shoot dry matter (SDM), and root dry matter (RDM). The data were submitted to analysis of variance and the averages were compared by Tukey’s test (p < 0.05). It was concluded that there was no influence of phosphorus doses on the initial development of A. humile seedlings and that there was a response to the association between liming and potassium chloride in vegetative growth.


2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
E. Malinowska ◽  
K. Jankowski

The aim of this paper is to evaluate the effect of different doses of spent mushroom substrate and cow slurry on sugar content and digestibility of hybrid alfalfa and grass mixtures. The main factors were different doses of organic material: mushroom substrate and slurry, and the following legume grass mixtures: M1-orchard grass (Dactylis glomerata), perennial ryegrass (Lolium perenne), and hybrid alfalfa (Medicago x varia T. Martyn); M2-orchard grass, hybrid alfalfa; M3-perennial ryegrass, hybrid alfalfa. In each growing season, the mixtures were harvested three times during three years of their full use. Sugar content and dry matter digestibility were determined with near-infrared spectroscopy (NIRS) using the NIRFlex N-500 spectrometer. Of all fertilizer treatments, the application of mushroom substrate at a dose of 20 t·ha−1 in combination with 40 m3 of slurry resulted in the best forage quality with its highest digestibility. In the mixture of perennial ryegrass and hybrid alfalfa increasing doses of mushroom substrate with decreasing doses of slurry lowered soluble sugar content and digestibility.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 229-229
Author(s):  
Bokyung Hong ◽  
Beob G Kim

Abstract Two experiments were conducted to investigate the effects of phytase source and feed pelleting on digestibility of dry matter (DM), crude protein, organic matter (OM), and phosphorus (P) with different doses of phytase in pigs. In Exp. 1, ten barrows (31.4 ± 3.5 kg of BW) were individually housed in metabolic crates and allotted to a replicated 5 × 6 Latin square design with 5 diets and 6 periods. In Exp. 2, ten barrows (28.2 ± 3.2 kg of BW) were individually housed in metabolic crates and allotted to a replicated 5 × 5 Latin square design with 5 diets and 5 periods. Each period lasted 10 d consisted of a 5-d adaptation and a 5-d collection periods and the marker to marker method was used for fecal collection. In both experiments, a basal diet was prepared based on corn and soybean meal without phytase or inorganic P. Four additional diets were prepared in a 2 × 2 factorial treatment arrangement with 2 phytase sources (Buttiauxella spp. or Escherichia coli) and 2 feed forms (mash or pellet). Both experiments employed the same treatments but had different supplemental phytase doses (500 and 1,500 FTU/kg in Exp. 1 and 2, respectively). In Exp. 1, supplemental phytase increased standardized total tract digestibility of P (66.1 vs. 51.7%; P &lt; 0.001) with no effects of phytase source or feed pelleting. Feed pelleting increased digestibility of DM, crude protein, and OM (P &lt; 0.001). In Exp. 2, supplemental phytase increased standardized total tract digestibility of P (72.8 vs. 44.8%; P &lt; 0.001) with no effects of phytase source or feed pelleting. Feed pelleting increased digestibility of DM and OM (P &lt; 0.001). Taken together, supplemental phytase at 500 and 1,500 FTU/kg increases P digestibility regardless of phytase source or feed pelleting.


2010 ◽  
Vol 13 (9) ◽  
pp. 1462-1471 ◽  
Author(s):  
Xuan Zhang ◽  
Ke Chen ◽  
Ping Qu ◽  
You-Xue Liu ◽  
Ting-Yu Li

AbstractObjectiveTo investigate the efficacy of biscuits fortified with different doses of vitamin A on improving vitamin A deficiency (VAD), anaemia and physical growth of pre-school children.DesignA randomised double-masked population-based field interventional trial with a positive control group.SettingBanan district of Chongqing, China.SubjectsA total of 580 pre-school children aged 3–6 years were randomly recruited into four groups. Children in groups I and II were given biscuits fortified with vitamin A at 30 % of the recommended daily intake (RDA) and 100 % of the RDA once a day for 9 and 3 months, respectively. Children in group III received biscuits containing 20 000 IU of vitamin A once a week for 3 months. Initially, the children in group IV received a 200 000 IU vitamin A capsule just once. At the beginning and end of the study, blood samples were collected to measure Hb, serum retinol, retinol-binding protein and prealbumin, and weight and height were measured.ResultsAll the fortification types significantly decreased the prevalence of VAD and anaemia in each group (P < 0·05). The effect of 9-month intervention on group I was the most efficient (P < 0·0045). After intervention, the Z-scores of height-for-age, weight-for-age and weight-for-height in all groups increased markedly compared with baseline (P < 0·05), but no significant difference was observed among the groups.ConclusionsData indicated that consuming vitamin A-fortified biscuits with daily 100 % RDA for 3 months has the same effect on the improvement of VAD, anaemia and physical growth as did the weekly 20 000 IU and single 200 000 IU administration in pre-school children.


2002 ◽  
Vol 69 (2) ◽  
pp. 303-316 ◽  
Author(s):  
PAOLA GAUFFIN CANO ◽  
GRACIELA AGÜERO ◽  
GABRIELA PERDIGÓN

The therapeutic and preventive effects of yogurt and lactic acid bacteria on diseases such as cancer, infection and gastrointestinal disorders are well documented. The aim of this research was to study the effects of different doses of yogurt addition after milk re-nutrition diet, on the recovery of the intestinal barrier and mucosal immune function. Experiments were performed on groups of mice, malnourished and re-nourished with milk during 7 d, and mice with diet supplemented with yogurt for 2, 5 and 7 consecutive d. Nutritional parameters such as weight gain, serum total protein, and the number of IgA, IgM and IgG B cells of the small intestine were determined. We also quantified intraepithelial leukocytes, mastocytes and goblet cells, and performed structural and ultrastructural studies on the small intestine. We observed that 5 d of yogurt feeding was the optimal dose for improving gut barrier function and mucosal immune system in a malnutrition model. This effect was not observed with milk re-nutrition. Although the results were better for 5 d of yogurt, addition for 7 d also showed beneficial effects. Yogurt feeding in our model did not impair any gut functions. These results suggest that yogurt addition after a re-nutrition diet gives better recovery of intestinal function than the re-nutrition diet usually recommended. Although these results were obtained in an animal model, they indicate that consumption of yogurt by malnourished children might accelerate the restoration of gut function.


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