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The influence of colostrum consumption on serum lactoferrin in newborn calves
No full textLactoferrin is a glycoprotein from the transferrin family, proteins capable of binding and transferring Fe3+ ions. Lactoferrin from bovine colostrum and milk has become increasingly important due to its wide range of biological properties. Colostrum intake leads to increased serum lactoferrin levels in calves [11], foals [2] and piglets [5]. Together
with IgG, it is transferred from the intestinal tract into the systemic circulation through passive absorption in the case of newborns. Fewer studies have been performed in animals, but it has been shown to reduce morbidity and improve the growth rate of calves [9]. Studies have also indicated that lactoferrin can lead to the elimination of pathogens and therefore to the reduction of the incidence of neonatal diseases through the mechanism of iron binding, inhibition of bacterial growth and proteolytic activity [1]
The influence of treatments with various phytosanitary products (fungicides) on the attack of some phytopathogenic fungi on barley harvest, Donau variety, in 2019 pedoclimatic conditions of Eastern Baragan
No full textThis study aims at monitoring the dynamics of the occurrence and evolution of the attack of some pathogenic agents to
barley, among which we mention: mildew (Blummeria graminis f.sp. hordei), leaf stripe (Pyrenophora graminea) and
barley’s rust (Puccinia hordei). Also, the influence of applying these fungicides on the harvest was monitored, as
compared to the untreated control variant. For this study, an experiment with 6 treatment variants was created, in which
the following phytosanitary products were used, as follows: ACANTO PLUS (picoxystrobin 200 g/l + cyproconazole
80 g/l); MYSTIC 250 EC (tebuconazole 250 g/l); FALCON PRO (prothioconazole 53 g/l+tebuconazole 148 g/l +
spiroxamine 224 g/l); CAPALO (fenpropimorph 200g/l, epoxiconazole 62.5 g/l, metrafenon 75g/l). The treatment
variants were the following: V1 - ACANTO PLUS 0.5 L/HA, 1 treatment applied at spike’s release - blooming (5.05.
2019); V2 - ACANTO PLUS 0.5 L/HA, 1 treatment applied in “bellows” phase (20.04.2019) + 1 treatment applied at
the beginning of kernel’s filling (27.05.2019); V3 - CAPALO 1.0 L/HA, 1 treatment applied at spike’s release -
blooming (5.05. 2019); V4 - MYSTIC 250 EC 0.5 L/HA + 1 CAPALO 0.5 L/HA treatment applied in “bellows” phase
(20.04.2019) + 1 treatment applied at the beginning of kernel’s filling (27.05.2019); V5 - FALCON PRO 0.6 L/HA, 1
treatment applied at spike’s release - blooming (5.05.2019); V6 - ACANTO PLUS 0.5 L/HA +- FALCON PRO 0.5
L/HA, 1 treatment applied in “bellows” phase (20.04.2019), 1 treatment applied at the beginning of kernel’s filling
(27.05. 2019), V7 – Untreated control variant. The experiment was placed in Latin square; the 7 variants being placed in
7 repetitions. The first two leaves placed under the spike had been analysed for the above. Among the pathogenic agents
under monitoring, the greatest attacks were produced by Pyrenophora graminea fungus which produces barley leaf
stripe disease. The harvests of the variants were the following: V1 - 5634 kg/ha, V2 - 5951 kg/ha, V3 - 5669 kg/ha, V4 -
5658 kg/ha, V5 - 5494kg/ha, V6 - 5704 kg/ha and V7 (untreated control variant) - 5506 kg/ha
Engineering measures for soil erosion control on agricultural land in the Podolenii de Sus area, Cozmesti commune, Iasi county
No full textLands requiring improvement are placed on slopes larger than 15%, located Cozmesti commune, in Iaşi County. The
total area of the perimeter is 50.4 ha and is located in the extravilan area. The categories of use in the area are
agricultural, stretching over 22.96 ha, namely degraded pasture, very poorly productive and 27.44 hectares now become
non-agricultural, of which 1.44 ha are roads operating damaged, impracticable and 26 ha unproductive due to excessive
surface erosion, of the formations in depth, permanent excess moisture and vineyards aging, degraded, with destroyed
biocenosis. Thus, it was proposed redevelopment the agricultural technological roads, grubbing up of vineyards the
abandoned and degraded , to execute marginal and evacuation channels in order to protect the agricultural technological
roads, leveling and modeling the lands on the slopes, creation of terraces on the arable , fertilization improvement,
works of deep loosening, deep plowing, panting, disking and the application of measures erosion control specific to the
land in slope with arable land use category. The fitting of slopes affected by surface erosion, depth erosion and
landslides, with hydrotechnical works to control leakage and consolidation, grasslands and the improvement of
degraded land contributes to the stabilization and creation of conditions for the evolution of soils, vegetation,
biocenoses in ground
Probleme metrice privitoare la determinarea distanţelor: Geometria Descriptivă vs. Autocad
No full textIn this paper the authors present a comparative study on how to determine distances using the classic variant (Descriptive Geometry) but also the modern one, using the AutoCAD software, presenting for each mode the steps necessary to determine the respective distances but also the advantages and disadvantages of each way of working
Agri-wastes as a low-cost adsorbent for nicosulfuron herbicide
No full textThe contamination of aquatic and terrestrial environments by pesticides is highlighted by their possible toxic properties and poor biodegradability on the environment. The development of low cost by products from agricultural sectors as a suitable solution for contaminated areas remediation is of great environmental interest. Straw wastes can be considered as a promising alternative to remove different chemical compound that are environmentally toxic. In this study, some materials derived from agricultural (agri)-wastes (wheat and corn straw) in mixture with soil, were investigates as potential adsorbents for nicosulfuron removal. After mineralization (850 C) and KOH activation to obtain the biochars, the samples were structurally characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. Interaction studies between nicosulfuron - biochars and soil were performed at various concentrations and pH of 7. The adsorbent capacity was evaluated using batch sorption test and liquid chromatography coupled with mass spectrometry. The characterization results showed different functional groups present in the structure of these biochars while surface analysis showed an increase of surface roughness. The Langmuir isotherm and pseudo second order mechanism describes the kinetics of nicosulfuron herbicide. The results obtained highlight the importance of agri-waste as a natural adsorbent, being a solution for the removal of nicosulfuron from contaminated environments
Cercetări privind efectul aplicării unor doze diferite de biostimulatori asupra capacităţii agroproductive la cânepa monoică
Get PDFThe paper aims to highlight the singular and combined effects of the cuttings application and three types of biostimulators, in different doses, on the seed production of the Secuieni - Jubileu monoecious hemp variety. The research was carried out in the technological field of SCDA Secuieni, during the year 2020. The results revealed the highest seed yields (2022 kg·ha-1), supported at a very significant statistical level, in the case of the application of two cuttings. At the same time, the biggest influence was determined by the use of the biostimulatorAsfac BCO - 4, at a dose of 1.5 l·ha-1, the registered yield increase (790 kg·ha-1) being very significant, compared to the control variant (unfertilized). The combined influence of the studied factors determined the highest yield increase (1420 kg·ha-1) in the case of the variant on which two cuttings and Asfac BCO-4 were applied, at a dose of 1.5 l·ha-1
Effect of starvation and re-feeding with different dietary protein level on some hematological parameters of juvenile rainbow trout (Oncorhynchus Mykiss, Walbaum, 1792)
Get PDFThe aim of this experiment was to analyze the effect of applying of cyclical short periods of
starvation (2 days and 4 days) on the hematological profile of rainbow trout. This experiment lasted
for 46 days and was carried out in the facility of the University “Dunărea de Jos” from Galaţi. Six
treatments with duplicate were assigned, as follows: two control groups, feed daily, ad libitum, with
commercial pellets containing 41% crude protein (D41) and 50% crude protein (D50); two groups
starved for 2 days (D2) and then fed with commercial pellets with 41% crude protein (D2/41),
respectively 50% crude protein (D2/50) and two groups starved for 4 days (D4) and then fed with
commercial pellets with 41% crude protein (D4/41), respectively 50% crude protein (D4/50).
Starvation and re-feeding with different dietary protein level had no significant (p˃0.05) effect on
some hematological parameters including hematocrit, mean corpuscular volume, mean corpuscular
hemoglobin, while hemoglobin, Red blood cell counts and mean corpuscular hemoglobin
concentration, registered significant differences (p˂0.05). Significantly higher (p˂0.05)
concentration of hemoglobin was observed in the case of fish fed with higher protein content, while
the increasing of the starvation period led to a significant decrease of the hemoglobin
concentration. Furthermore, starvation and subsequent feeding led to a significant decrease of the
erythrocyte number with the increasing of the starvation period
Long term impact of different tillage systems on carbon pools and stocks, soil bulk density, aggregation and nutrients: a field meta-analysis
Get PDFIntensive tillage frequently has adverse impact on soil physical quality and soil organic carbon stocks in temperate regions. A consequence of this has been a reduction in crop production over the years demonstrating the necessity of effective and sustainable agriculture. This study aimed to evaluate soil organic carbon (SOC) storage and pools, soil bulk density, aggregation and nutrient availability under different tillage systems (no-tillage, chisel and conventional tillage), based on a long field experiment. After 10 years of crop rotation, in 0–30 cm soil depth, no-tillage system had higher total organic carbon over conventional tillage treatment. Plots under no-till and chisel treatments in 0–10 cm depth, had 7–13%, 34–35% and 9–15% higher non-labile fraction (Cfrac4), very-labile fraction (Cfrac1) and total organic carbon (TOC), respectively compared to that of conventional ones. Also, no-till system had higher passive carbon pool and carbon management index than conventional system. In addition, the conservative tillage, reduced soil bulk density compared with conventional tillage in the surface layer. The stability of slow-wetting and room storage aggregates from conservative tillage were significantly higher (p < 0.05) than conventional tillage. Overall, stability of soil aggregates is improved under conservative tillage. Tillage system, crop rotation and residues, increased soil available nutrients N, P and K in the 0–10 cm depth, with the highest values in no-tillage system. Therefore, conservation tillage could be recommended as a tillage practices that improve fertility soil characteristics and production sustainability
Studii preliminarii privind proiectarea unei spirale de plante aromatice
Get PDFIn the modern agriculture is a new trend, that of replacing cultivated areas with unproductive ornamental plants with productive vegetable species, using natural cultivation systems, with the purpose of educating young people, obtaining satisfaction by producing their own food, reducing (avoiding) the polluting factor and using leisure in a pleasant way. Against the background of reduced incomes or changes in the employment situation, the pandemic caused by COVID-19 caused changes in the perception of Romanians, in terms of food, housing, job, etc., a rethinking of lifestyle and a return to a minimalist and healthy life style. The new systems for growing vegetable, aromatic and spicy plants are inspired by nature. Thus, a non-conventional model for growing vegetable plants is the concept of spiral. A perfect concept to highlight a series of modern principles and ethics, based on a harmonious and efficient combination of new ideas and solutions, which can cope with economic, social and even climate change
Efforts to improve quality of duck egg yolk through giving rations containing Spirulina
No full textGenerally raising duck in Indonesia aims to produce eggs, thus the quality of eggs becomes important and determine the success marketing of business results. After increasing the production of eggs, people also tend to choose duck eggs that have a good quality. The Aspects that are usually to be the consumer consideration in choosing the good quality of duck eggs are the color of yolks are not pale, eggs have a large size and cleanliness of eggshell. It is well known that the diet has affects to the color of yolks, ie feed ingredients containing carotenoid pigments especially beta carotene and xanthophyll pigments. The Feed that contain a lots of beta carotene and xantophil pigments is in forage likes Spirulina (Spirulina Sp.). Spirulina (Spirulina Sp.) is a single cell protein (PST) microalga that can be a source of dye laying duck ration because of very high contains in fikocyanin, xanthophyll and beta-carotene. The study used a Completely Randomized Design with 5 doses treatment of addition of spirulina (0, 0.5, 1, 1.5, and 2%of the ration). Replication is done 4 times, so there are 20 unit of experiments and required 80 laying ducks. The observed variables include egg weight, yolk index, yolk percentage and yolk score. The results showed that egg weight, yolk index and yolk percentage were not significant. The addition of spirulina, one percent in ration (R2) can produce the standard quality of yolk which is in great demand by consumers with yolk score of 9.35