scholarly journals Changes in growth-production parameters of Lolium perenne L. turf after application of concentrated polysulfide fertilizer

2020 ◽  
Vol 23 (3) ◽  
pp. 155-160
Author(s):  
Peter Kovár ◽  
Luboš Vozár ◽  
Peter Hric

The changes in growth rate, daily production of above-ground phytomass and lawn density of turfgrass after application of fertilizer based on polysulfide (Sulka NKS+) were evaluated in Nitra (the Slovak Republic) climatic conditions. The polysulfide preparation was applied 2-times, 4-times and 6-times during the vegetation period in 2015–2017 and the effect was compared with a zero control. Stimulatory effect of Sulka NKS+ was shown in the average daily gain of grass height and average daily gain of aboveground phytomass weight with the most visible expression in the 2nd and 3rd year of cultivation. For the thickening lawn index was found out inhibitory effect of polysulfide fertilizer. The average values of the first two characteristics (average daily gains of grass height and weight of above-ground phytomass) have also increased with the increasing number of Sulka NKS+applications.

Author(s):  
Peter Kovár ◽  
Ľuboš Vozár ◽  
Ján Jančovič

The development of botanical composition (in % dominance) in the period 2005–2011 and growth-production process in the years 2007–2011 were evaluated in small-plots experiment with selected Slovak varieties of species of the genus Festuca. The experiment was realized under the conditions without irrigation of south-western Slovakia (locality Nitra). The data of botanical composition of turfs showed that fescue varieties were able to create well-covered vegetation (coverage 87–99 %) as early as next year after sowing in conditions without irrigation. In the next period, the differences in turf coverage between varieties were minimized. The total height of turf and average daily gain of height were the highest in F. arundinacea Schreb. varieties throughout the observed period with significant differences in year 2008 (p = 0.0239), 2009 (p = 0.0462) and 2011 (p = 0.0036). The most intensive growth had F. arundinacea Schreb. cv. Koreta (1.81 to 3.44 mm.d−1; i.e. very low to moderate intensity of growth). From point of view of aboveground phytomass production almost throughout the period were used varieties characterized by very low production of phytomass. Among years and varieties were observed differences in the ability thicken vegetation expressed as the ratio of the average daily gain of weight and average daily gain of height (W/H). F. rubra L. cv. Laroma (0.38 to 1.26 g.m−2.mm−1) and F. ovina L. cv. Grasina (0.37 to 1.54 g.m−2.mm−1) dominated in this indicator except for 2009, when higher values reached F. arundinacea Schreb. cv. Koreta and Levona (both 0.43 g.m−2.mm−1; F. rubra L. and F. ovina L. – 0.27 and 0.39 g.m−2.mm−1, respectively).


2021 ◽  
Vol 24 (2) ◽  
pp. 122-133
Author(s):  
Nicoleta Aurelia Lefter ◽  
Mihaela Hăbeanu ◽  
Anca Gheorghe ◽  
Lavinia Idriceanu

Abstract During 30 days, the effects of millet grain regimen on performance indicators and blood metabolites in growing pigs were studied. A total of 40 Topigs pigs with similar age (81±3d) and weight (13.58±0.36 kg) were divided into two groups: control (C), based on the corn-triticale (25%)-soybean meal and experimental (M, where the millet replaces triticale). The production parameters and plasma samples were evaluated at the end of the experiment. Spotchem EZ SP-4430 analyzer from Arkray-Japan was used to assess the blood lipid, protein, enzyme, and mineral profiles. We noticed that the M diet maintains appropriate performance (33.22 vs. 31.30 final BW; 0.646 vs. 0.608 average daily gain; 1.39 vs. 1.29 average daily feed intake and, respectively 0.46 vs. 0.47 Gain: Feed ratio) and plasma metabolic profile with the C diet (P>0.05). In conclusion, the 25% millet added to the growing pigs' diet did not affect the performance indicators or body health.


2016 ◽  
Vol 107 (2) ◽  
pp. 373
Author(s):  
Peter Hric ◽  
Ján JANČOVIČ ◽  
Ľuboš VOZÁR

<p>The aim of this experiment was to compare the influence of organic and inorganic fertilizers on selected indicators of turf growth-production process under non–irrigated conditions. The experiment was carried out in warm and dry conditions in the area of Nitra (Slovak Republic). In the experiment were included 5 treatments: 1.Without fertilization, 2. Turf NPK fertilizer 15–3–8 (+3 MgO +0.8 Fe +18 S), 3. Slow release NPK fertilizer 14–5–14 (+4 CaO +4 MgO +7 S), 4. Organic NPK fertilizer 5-1-1 and 5. Organic NPK fertilizer 3-2-1. Determination of the average height of turf, total height of turf and the annual average daily gain of height showed that best treatment was application of slow release fertilizer. Turf fertilized by Organic NPK fertilizer 5-1-1 reached the highest values of the average height of turf, total height of turf and the annual average daily gain of height, the same as treatment without fertilization. These finding were statistically significant. Treatment without fertilization reached the lowest values in evaluated growth-production parameters.</p>


2021 ◽  
pp. 47-51
Author(s):  
M. T. Kargaeyeva ◽  
Yu. A. Yuldashbayev ◽  
K. Zh. Iskhan ◽  
O. Alikhanov ◽  
D. A. Baimukanov ◽  
...  

Relevance. Herd horse breeding is the most ancient way of reproduction and maintenance of horses. The regularities of the growth and development of young animals largely depend on the genotype of the producers. Adai horses are bred in a herd way. Their well-being largely depends on natural and climatic conditions — the state of the weather, grass stand. The breeding zones of the Adai horse are the desert and semi-desert of the western region of Kazakhstan, characterized by a sharply continental climate.Methods. Experimental work was carried out at Taushyk LLP, Tupkaragan district, Mangistau region. The object of the study is pure-bred Kazakh horses of the Mangistau population and Adai offspring. According to scientific experience, two groups of 12 stallions were formed. Feeding qualities were assessed by the increase in live weight in young animals in the period from 24 to 30 months of age. Meat productivity was studied according to the methodology of the All-Russian Research Institute of Horse Breeding, in accordance with the technological instructions adopted in the meat industry.Results. It was found that the greatest increase in live weight in foals of Kazakh horses of the Adai offspring is observed from 3 days of age to 1 month and amounted to 42.9 kg with an average daily gain of 1530 g. For six months the increase in live weight was 84.1 kg, and average daily gain — 460 g. From 6 to 12 months of age the average daily gain in foals decreases to 126.9 g, due to the independent wintering of foals. From 18 to 24 months the minimum increase in live weight was recorded — 24.6 kg. From 24 to 30 months of age the average daily gains slightly increase — to 310 g. It has been established that the coefficient of increase in live weight in Kazakh horses in the conditions of the Mangyshlak Peninsula from birth to 24 months of age is 5.28–5.30, from 24 months. up to 30 months age — 0.51–0.52, from birth to 30 months of age — 8.54—8.56. It was found that the stallions of the Mangystau population exceeded their peers of the Adai offspring in terms of pre-slaughter live weight by 3.8 kg. In terms of slaughter yield stallions of the Adai offspring were inferior to their peers of the Mangistau population by 0.4%. The highest fat content in the meat of both groups is observed in the off-grade cut (kazy + sting) — from 16.0% to 16.4%. Comparatively little fat was contained in grade II meat — from 3.8% to 4.3% and grade III — from 2.3% to 2.7%.


1974 ◽  
Vol 54 (4) ◽  
pp. 605-610 ◽  
Author(s):  
J. D. MILLIGAN ◽  
G. I. CHRISTISON

An analysis of 7 yr of monthly records on a total of 1,970 steers from the University of Saskatchewan feedlot at Saskatoon was conducted to determine the effects of climate on steer performance. During the months of December, January and February (mean monthly temperature −17 C), average daily gain fell to 70% of the average recorded over the remainder of the year. Production efficiency was also severely affected. The feed required per unit of gain and the metabolizable energy intake per unit of gain during winter were, respectively, 149 and 140% of the mean requirements from March to November. These effects were not caused by differences in weight, maturity or energy intake of the steers. Animal performance appeared to be related to climatic factors over the entire annual range. Average daily gain and feed per unit gain were significantly correlated with mean ambient temperatures (r = 0.74 and −0.85, respectively), days below −23 C (r = −0.74 and 0.86), windchill (r = −0.73 and 0.82) and dewpoint (r = 0.74 and −0.83). Voluntary feed intake was markedly lower in winter than during the onset of colder weather in the fall. Cattle fed in the 90 coldest days required an extra 220 kg feed to reach market weight. Winter climatic conditions, therefore, have a marked adverse effect on full-fed feedlot cattle in Western Canada, even when the animals are well bedded and sheltered from wind.


Author(s):  
Peter Hric ◽  
Ľuboš Vozár ◽  
Peter Kovár ◽  
Juraj Hric

The aim of this experiment was to compare growth and production parameters of the first Slovak cultivar of xFestulolium with Felina and Hykor. The experiment was conducted at the Demonstrating and research base of Department of Grassland Ecosystems and Forage Crops, Slovak Agricultural University in Nitra (Slovak Republic) with controlled moisture conditions (glass house) in 2017 (one year pot experiment). We compared new intergeneric hybrid Lenor with Felina and Hykor. In the experiment were evaluated average height (mm) and dry matter (DM) yields (g). New intergeneric hybrid Lenor was in every cut highest (P < 0.05) (59.57 mm) in compare with controlled varieties Felina (47.89 mm) and Hykor (47.07 mm). Lenor had higher dry matter yields than Felina and Hykor in the first and second cut. In the 3rd cut were not observed significant differences in dry matter yields. The highest DM yields were measured by Hykor (2.82 g). In sum of three cuts reached Lenor highest dry matter yield (4.99 g). This measured value was higher (P < 0.05) compared with Felina’s production.


2010 ◽  
Vol 26 (1-2) ◽  
pp. 83-90 ◽  
Author(s):  
N. Tolimir ◽  
L. Peric ◽  
N. Milosevic ◽  
V. Bogdanovic

Multiphase broiler nutrition is important from the standpoint of nutrition optimization, economical efficiency of production and protection of the environment. Objective of research is to investigate the effect of multiphase nutiriton, i.e. different mixtures used in broiler nutrition, whse protein content has been reduced in several phases during first fattening stage, on production performances of broilers. Investigation was carried out on 608 individually tagged male chickens, Ross 308 strain, divided into 4 groups: T1 (control group) - nutrition with mixture containing 23% of protein from 1-21st day; T2 - nutrition with mixture containing 23% of protein from 1st to 7th day, and from 7th to 21st day diet containing 21.5% protein; T3 - nutrition with mixture containing 23% of protein from 1st to 14th day and from 14th to 21st day diet containing 21.5% protein and T4 - nutrition with mixture containing 23% of protein from 1st to 3rd day, from 4-6th day with 22.55% protein, 7-9th day with 22.10% protein, 10-12th day diet with 21.65% protein, 13 - 15th day with 21.20% protein, 16-18th day with 20.75% protein and 19th-21st day diet with 20.30% protein. Main production parameters were registered during the trial period (from 1 to 21st day).Through processing of obtained data it ewas established that chickens of the T4 group (2092.42g), had realized statistically significantly higher body mass compared to T2 (2025.00g) and T3 (2020.07g), but not in relation to control group T1 (2055.16g), during trial period of 42 days. Also, it can be concluded that in regard to daily gain in period up to 21st day, no statistically significant differences between trial groups were established, however, for the entire trial period, average daily gain of chickens in T4 group (48.84g) was statistically considerably higher compared to T2 (47.24g) and T3 (47.13g), whereas in relation to T1 no differences were established T1 (47.99). Feed conversion differed between groups, precisely in favor of the application of multiphase broiler nutrition, i.e. feed conversion of the trial group T4 (1.870) was the best compared to T1 (1.918), T2 (2.005) and T3 (1.970). Based on obtained results it can be concluded that multiphase nutrition had effect on production performances, primarily level of food utilization.


2018 ◽  
Vol 58 (10) ◽  
pp. 1901 ◽  
Author(s):  
A. Y. El-Badawi ◽  
I. El-Wardany ◽  
S. I. Abd El-Moez ◽  
F. I. S. Helal ◽  
Nematallah G. M. Ali ◽  
...  

Forty-five growing New Zealand White (NZW) male rabbits weighed 750.0 ± 5.8 g aged 6 weeks were used in a feeding experiment lasting 56 days. Rabbits were housed in a semi-climatic chamber at a mean ambient temperature of 33.1°C and relative humidity of 43%. The rabbits were placed in three equal groups of five replicates. The first group was fed on free moringa diet (control, R1), while R2 and R3 groups were fed diets supplemented with 0.5% and 1.0% moringa dry leaves respectively. Daily feeds and water were offered ad libitum. At the end of the feeding period, three random animals of each group were slaughtered to investigate intestinal and caecal contents of pathogens and changes of intestinal and caecal tissues. The results indicated that there were no statistical differences among groups concerning daily feed intake, average daily gain and feed conversion ratio; however, slight improvement was noticed with rabbits fed R3. Intestinal microbial load, namely total plate count of Salmonella, Escherichia coli, Staphylococcus aureus, Clostridium perfringens and mould, was reduced (P < 0.01) with R2 and R3 diets compared with the control (R1). A similar trend was also noticed on caecal microbial load. Histological examination of jejunum tissues showed clear increases in villus height, villus : crypt ratio and obvious depth of caecal tunica mucosa, which might reveal better absorption of nutrients and microbial metabolites. It could be concluded that rabbits fed moringa-supplemented diets showed better feed conversion and intestinal and caecal histological structure, with clear reduction of gastro-intestinal pathogenic bacterial load under the hot climatic conditions.


Author(s):  
Peter Hric ◽  
Ján Jančovič ◽  
Peter Kovár ◽  
Ľuboš Vozár

The aim of this experiment was to compare the influence of fertilizers with different speed of nutrients release on growth–production indicators of turf under non–irrigated conditions. The experiment was carried in warm and dry conditions in area Nitra (Slovak Republic). In the experiment were followed 5 treatments (1. without fertilization, 2. Nitre with dolomite, Superphosphate, Potassium salt, 3. Turf fertilizer Travcerit®, 4. Slow release fertilizer SRF NPK 14–5–14 (+ 4CaO + 4MgO + 7S), 5. Controlled release fertilizer Duslocote® NPK (S) 13–9–18 (+6S)). The highest gain of height reached variant fertilized by fertilizer SRF NPK 14–5–14 (+ 4CaO + 4MgO + 7S). Comparison of the individual treatments for the whole period showed significantly lower average daily gains of height on control treatment compared to fertilizing treatments Nitre with dolomite, Superphosphate, Potassium salt, SRF NPK 14–5–14 (+ 4CaO + 4MgO + 7S) and Duslocote® NPK (S) 13–9–18 (+6S). During the reported period the highest gain of weight reached treatment by application fertilizer Duslocote® NPK (S) 13– 9–18 (+ 6S). Comparison of the individual treatments for the whole period, were found significantly lower average daily production of phytomass on control treatment in comparison with fertilization turfs by Travcerit® and Duslocote® NPK (S) 13–9–18 (+6S).


EDIS ◽  
2017 ◽  
Vol 2017 (4) ◽  
Author(s):  
Philipe Moriel

Calves can be preconditioned using a wide variety of supplemental feed ingredients. However, feed ingredient selection is not the only factor to consider during a preconditioning process. Increasing the protein supply to stressed, preconditioning beef steers led to greater growth performance, and increased immune response to vaccination during a 42-day preconditioning period. Producers should not reduce the frequency of concentrate supplementation during the entire preconditioning period as it might lead to poorer vaccine response and average daily gain (consequently, less calf value at sale). However, a gradual reduction of frequency of supplementation is a supplementation strategy that can overcome these negative effects on growth and immunity, and allows producers to save on feeding and labor costs without producing lighter calves that have weaker immune responses.  


Sign in / Sign up

Export Citation Format

Share Document