Wyniki wyszukiwania - AGRO

1

Effect of sampling season and storage period on dehydrogenase and catalase activity of an Orthic Luvisol

100%

Wlodarczyk T.

Polish Journal of Soil Science

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1998

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tom 31

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nr 2

2

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Season-dependent characteristics of insemination boar ejaculates

86%

Koprianiuk A., Kondracki S., Wysokinska A., Iwanina M., Serewa D.

Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

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2014

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tom 32

Badania przeprowadzono na ponad 8 tysiącach ejakulatów pobranych od 112 knurów. Badaniami objęto wszystkie ejakulaty pobrane i zakwalifikowane do inseminacji w czteroletnim okresie działania jednej ze stacji unasienniania loch. Nasienie od knurów pobierano dwa razy w tygodniu, metodą manualną, rano po pierwszym karmieniu. Pobrane ejakulaty poddano ocenie według metodyki stosowanej w polskich stacjach unasienniania loch. Zebrane dane podzielono na 12 podgrup obejmujących ejakulaty pobierane w poszczególnych miesiącach roku. Wykazano, że cechy ejakulatów knurów inseminacyjnych zależą od pory roku pobrania. Ejakulaty pozyskiwane w okresie jesienno-zimowym cechują się dużą objętością i zawierają najwięcej plemników o ruchu postępowym. Ejakulaty te cechują się także relatywnie dużą ruchliwością plemników. Ma to związek z dużą liczbą dawek inseminacyjnych wytwarzanych z ejakulatów pobieranych w tym okresie. Ejakulaty pobierane w okresie lata (czerwiec–sierpień) zawierają mniej plemników wykazujących prawidłowy ruch. Uzyskuje się z nich o około 3 dawki inseminacyjne mniej niż z ejakulatów pobieranych w okresie zimowym.

3

Wild boar seasonal farrowing pattern analysis based on the harvest data of the piglets and yearlings shot in the Zielonka Game Investigation Centre in 2005-2008

86%

Labudzki L., Gorecki G., Skubis J., Wlazelko M.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2009

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tom 08

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nr 4

The analysis of the lower jaws of 265 wild boars, including 143 piglets and 122 yearlings, harvested in Zielonka Game Investigation Centre showed that farrowing took place most often in March (43.3%), February (23.8%), April (17.5%) and January (11.2%). Piglets were also born in May, June and July. The percentages for yearlings were a little different.

4

The influence of North Atlantic oscillation (NAO) on the air temperature and the total precipitation in Koszalin in 1861-2007

86%

Kirschenstein M., Baranowski D.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2009

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tom 13 part I

This paper presents the basic features of annual course of air temperatures and the sum of precipitation (diversification of temperatures and precipitation in separate months and seasons). The paper also determines air temperature and precipitation fluctuations in 1861-2007 and the trends of changes. Finally, the relations between the North Atlantic Oscillation (NAO) and the air temperatures and precipitation sums are established.

5

The effect of year, season, breed and reproduction cycle on some blood plasma parameters in cows and heifers

86%

Kucera J., Chladek G.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Zootechnika

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2004

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tom 51

The observation was carried out in a group of 70 female cattle in the course of two years. The animals were kept in suckler herds. They were provided with pasture grass and maize silage indoors during the grazing season and with forage ration (silage and hay) in winter. The aim of the study was to assess the effect of year (2001 and 2002), season (spring and autumn), breed (Aberdeen Angus AA, Beef Simmental BS, Blonde d'Aquitaine BA, Charolais CH, Hereford HE and Limousin LI) and reproduction cycle (pregnant heifers PH, non-pregnant heifers NPH, pregnant cows PC, non-pregnant cows NC and lactating cows with calves LCC) on some blood plasma parameters. Mean values of these parameters were following: Total protein 72.37 gl⁻¹ , glucose (Glu) 3.23 mmol∙l⁻¹, urea (Urea) 4.39 mmol∙l⁻¹, bilirubin (Bilir) 4.63 mmol∙l⁻¹, alkaline phosphatase (ALP) 1.02 µkat∙l⁻¹, asparate aminotransferase (AST) 1.29 µkat∙l⁻¹, gamma glutamyltransferase (GMT) 0.30 µkat∙l⁻¹, sodium (Na) 114.33 mmol∙l⁻¹, calcium (Ca) 2.30 mmol∙l⁻¹ and phosphorus (P) 1.99 mmolT1. Year affected TP, Glu, Bilir, ALP, AST (all p<0.01) and urea (p<0.05). Season affected TP, Glu, urea, Bilir, Ca, P (all p<0.01) . There were significant differences in urea, GMT, Ca and P between breeds. Reproduction cycle affected TP and Glu (p<0.05). It can be concluded that year and season affected the observed blood plasma parameters considerably more than breed or reproduction cycle.

6

Carotenoid contents in the body of rainbow trout Oncorhynchus mykiss, from different habitats

86%

Wozniak M.

Folia Universitatis Agriculturae Stetinensis. Piscaria

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2000

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tom 27

7

Dynamics of fine particulate and dissolved organic matter in a Moroccan mountain stream: effects of stream flow and litter quality

86%

Maamri A., Chergui H., Pattee E.

Polskie Archiwum Hydrobiologii

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1996

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tom 43

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nr 4

8

Studies on the influence of keeping system and season on the serum content of vitamin A and E in cows

86%

Orowicz W., Zakrzewska H., Baranow-Baranowski S.

Polish Journal of Veterinary Sciences

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2000

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tom 03

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nr 1

The study was carried out on three groups of cows kept in the systems: I - indoor and pasture, II - indoor with a run, III - indoor. The experiment lasted one year and involved summer and winter feeding. Contents of vitamin A and E in blood serum were determined. The highest serum levels of vitamin E were determined in animals kept in both indoor + pasture and indoor + run systems. The system of keeping did not affect significantly the concentration of vitamin A in the examined period. Statistically significant differences occured in some months but generally in all the systems, its content was at a similar level.

9

The content of cholesterol in butter depending on the season and production method

86%

Kisza J., Staniewski B., Juskiewicz M.

Polish Journal of Food and Nutrition Sciences

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1996

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tom 05

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nr 1

The seasonal variations in the cholesterol content in butter in relation to the fatty acid compositions were studied. No statistically significant differences in the cholesterol content depending on the season of the year were found. The differences in the cholesterol content in butter manufactured conventionally or continuously were also insignificant (p=0.05). The analysis of correlation showed statistically significant (p=0.05) dependence between the butter cholesterol content and iodine value (r=0.47), volatile fatty acids content (r=-0.38), and the C16:0/C18:0 ratio (r = 0.36).

10

Growth analysis of serradella [Ornithopus sativus Brot.} developed under different soils, methods of sowing and seasons

86%

Witkowicz R., Zajac T.

Acta Physiologiae Plantarum

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2002

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tom 24

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nr 2

11

Thunderstorm seasons and regions in Poland

86%

Kolendowicz L.

Geographia Polonica

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2004

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tom 77

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nr 1

12

Reproductive performance of Polish Large White sows in intensive production - effect of parity and season

72%

Schwarz T., Nowicki J., Tuz R.

Annals of Animal Science

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2009

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tom 09

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nr 3

269-277

13

Wplyw sezonu na zmiany w budowie morfologicznej plemnikow wybranych ras knurow inseminacyjnych

72%

Banaszewska D., Kondracki S., Wysokinska A.

Acta Scientiarum Polonorum. Zootechnica

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2007

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tom 06

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nr 2

3-14

14

Taxanomic composition of macroinvertebrates in the Liwiec River and its tributaries [cetral and eastern Poland] on the basis of chosen physical and chemical parameters of water and season

72%

Krolak E., Korycinska M.

Polish Journal of Environmental Studies

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2008

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tom 17

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nr 1

39-50

The taxonomic composition of macroinvertebrates in the Liwiec River and its tributaries situated in central and eastern Poland was studied during three seasons (spring, summer and autumn). Simultaneously, physical and chemical parameters of water were measured. Water parameters were different in each study period. Macroinvertebrates samples collected in summer and autumn were much more diversified than the samples collected in spring. In the spring samples a greater EPT diversity was observed, while in the samples collected in autumn Odonata, Coleoptera and Heteroptera were more diversified. The values of the BMWP-PL index were slightly higher for the summer and autumn samples than for the spring ones. Correlation between the concentration of oxygen in water and the number of individuals of Plecoptera and Trichoptera larvae was noted. The negative correlation between the values of BOD₅, the concentration of nitrate ions and conductivity, and the number of macroinvertebrate families was observed. A negative correlation also was noted between nitrate and phosphate ion concentrations and the number of individual insect larvae.

15

Season's influence on the properties of male domestic pig semen

72%

Kondracki S., Wysokinska A., Kowalewski D., Muczynska E., Adamiak A.

Rozprawy Naukowe. Państwowa Wyższa Szkoła Naukowa im. Papieża Jana Pawła II w Białej Podlaskiej

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2009

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tom 03

A study was carried out of 30, 160 ejaculate samples collected from 81 boars of the wbp (Polish Large White) breed and 182 boars of the pbz (Polish Landrace) breed. The ejaculate was collected manually with the sampling frequency of 4 - 5 days. An assessment of the ejaculate has been done with regard to the following physical properties: ejaculate volume, sperm cells concentration, percentage of sperm cells exhibiting proper motility, total number of sperm cells in the ejaculate and number of insemination doses obtained from one ejaculate. The collected data have been analyzed according to the season criterion with indication of the ejaculate collected in the individual months. It has been revealed that the most suitable ejaculate was collected from the domestic pig boars in November and December whereas in March, April and May the parameters lowered. The ejaculate collected in the springtime is characterized by a lower volume and a lower number of the motile sperm cells than in the other seasons. From the ejaculate collected in the autumn and winter period more insemination doses can be prepared than from those collected in spring and summer. No difference has been found between the boars of the wbp and pbz breeds with regard to their susceptibility to the seasonal factors’ influence.

16

Changes of nitrates and orthophosphates concentration in littoral water of the Lake Moszne (Leczna-Wlodawa Lakeland) and the piezzometric of the shore zone

72%

Misztal M., Ligeza S., Smal H., Bielinska E. J.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2004

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tom 01

17

Analysis of correlation between the detection rate of Mycoplasma hyopneumoniae in slaughter pigs and season, climate change, and presence of lung lesions

72%

Li R. C., Hu Y. L., Ge M., Zhao D., Yang T. T., Qing R. K., Yu X. L.

Medycyna Weterynaryjna

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2019

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tom 75

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nr 03

The purpose of this study was to analyze the correlation of the rate of Mycoplasma hyopneumoniae (M. hyo) in slaughter pigs with season, climate change and enzootic pneumonia (EP) lesions. We collected 530 slaughter pig lungs with suspected lesions from two slaughterhouses in different seasons and weather conditions from November 2014 to March 2017 in Changsha Hunan Province, China. The EP lesions of these lungs were quantified, and a PCR analysis was used to detect M. hyo in samples of bronchoalveolar lavage fluid (BALF). Twenty percent, 10%, and 9% of the lung specimens were scored 1-5, 6-10, and ≥ 11, respectively. Additionally, we found that 36% of all BALF samples tested positive for M. hyo. Among the lung specimens collected in winter, 41% scored 1 or more, and 53% tested positive for M. hyo. With respect to seasons, the lung specimens collected in summer showed the least number of EP lesions and the lowest positive testing rate for M. hyo. Of these specimens, 27% scored 1 or more, and 22% tested positive for M. hyo. Additionally, low temperature and fast temperature change (during 10 days before sampling) were associated with a higher rate of M. hyo detection in BALF. There was a positive correlation between the lung EP lesion score and the detection rate of M. hyo in the BALF of slaughter pigs. In conclusion, lung EP lesion scoring in slaughter pigs is of referential value to the evaluation of the dynamics of M. hyo infection in a swine population. It is essential to control the spread of M. hyo by careful management of swine populations, and the prevention and control of M. hyo in fattening pigs is of great significance to the eradication of the disease.

18

Susceptibility of flours derived from various cereal grains to infestation by the rust-red flour beetle [Tribolium castaneum Herbst] [Coleoptera: Tenebrionidae] in different seasons

72%

Turaki J. M., Sastawa B. M., Kabir B. G. J., Lale N. E. S.

Journal of Plant Protection Research

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2007

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tom 47

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nr 3

279-288

Two flour types (unpolished flour and polished one) and flour textures (grits and fine) of five cereal grains made up of millet, rice, wheat, sorghum and maize were evaluated under laboratory conditions for their susceptibility and progeny development in Tribolium castaneum in hot dry and cool humid seasons. T. castaneum thrived better during the cool humid season than the hot dry season. Polished flour was less susceptible to infestation and supported lower population of the beetles than unpolished flour. Index of susceptibility was 19.65-20.76% in unpolished flour and 18.89-19.76% in polished flour. The number of progeny that developed were 102.6-135.1 and 98.2-121.4 in unpolished and polished flours, respectively. Similarly, grit flour was significantly less susceptible than fine flour in both seasons. Rice, wheat and sorghum flours were less susceptible and supported significantly lower populations of T. castaneum than millet and maize flours in both seasons. Polished wheat flour supported least progeny number than the flour types of the other cereal grains. Conversely, significantly higher number of progeny developed in polished flour of millet and maize and unpolished flour of wheat. Millet fine flour and maize fine or grit flours were significantly more susceptible to infestation than flours of the other cereal grains.

19

Annual variations and tendencies of changes in atmospheric fall sums in Lebork in 1861-2000

72%

Kirschenstein M.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2008

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tom 12

The present paper concentrates on the basic features of an annual precipitation course (monthly, seasonal and annual sums) registered between 1861-2000. The paper also defines an amount of precipitation sums’ deviations from the many years’ average, factor of monthly precipitation sums’ changeability and trends of their changes. The characteristics of the annual precipitation sums in an annual course allow to define which months, seasons and half-years were characterized by more intensive changeability and discover if there was recorded a considerable asymmetry between the particular months, seasons and half-years and what were the reasons of the asymmetry.

20

Diurnal rhythm of plasma melatonin level in mares from spring equinox to summer solstice

72%

Rapacz A., Lewczuk B., Prusik M., Ras A.

Bulletin of the Veterinary Institute in Puławy

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2010

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tom 54

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nr 4

The aim of this study was to describe plasma melatonin (MLT) profiles in mares from spring equinox to summer solstice. Two experiments were performed on 19 warm-blood mares: the first in a veterinary clinic and the second in a stable without electricity and located outside a village. In the first experiment, blood samples were collected at 2-h intervals during 50-h periods in March, April, May, June, and July. In the second experiment blood samples were drawn at 2-h intervals for 26 h in March. Plasma concentrations of MLT were measured by direct RIA. The mean plasma MLT level showed significant (P≤0.05) time-dependent changes in horses sampled in March, April, May, June, and July. In experiment I, the mean level of MLT was significantly elevated (compared to the day-time values at 12.00, 16.00, and 18.00) between 20.00 and 04.00 in March, and between 22.00 and 04.00 in April and May, between 24.00 and 04.00 in June and July. Therefore it could be concluded that the duration of the elevated MLT level reflects the length of scotophase, and merits consideration as an important signal in seasonal regulation of reproductive activity. Individual profiles of MLT level were well-entrained in the majority of animals studied in experiment I and in all individuals used in experiment II. The concentrations of plasma MLT varied between mares; however, in the vast majority of individuals, the plasma concentration of MLT was low compared to other mammalian species.

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