Search Results

1 - 10 of 111 items :

Clear All
Investigating Post-partum Ovarian Cyclicity Following Various Treatments in Dairy Cows

References 1. Cerri, R.L.A., Santos, J.E.P., & Juchem. S.O., Galvao, K.N., Chebel, R.C. (2004). Timed artificial insemination with estradiol cypionate or insemination at estrus in high-producing dairy cows. Journal of Dairy Science, 87(11), 3704-3715. 2. Edmonson, A.J., Lean, I.J., Weaver, L.D., Farver, T. and Webster, G. (1989). A body condition scoring chart of Holstein dairy cows. Journal of Dairy Science, 72(1), 68-78. 3. Kamimura, S., Ohgi, T., & Takahashi, M., Tsukamoto, T. (1993). Postpartum resumption of ovarian activity and uterine

Open access
Body Condition and Fat Score in Local and Passage Populations of the Great Reed Warbler (Acrocephalus arundinaceus) During the Spring Migration in NE Bulgaria

. 2000. Bird station manual . SEEN, University of Gdańsk, Gdańsk. Chernetsov N. 1999. Timing of spring migration, body condition, and fat score in local and passage populations of the Reed Warbler Acrocephalus scirpaceus on the Courish Spit . Avian Ecol. Behav. 2: 75-88. Dolnik V.R. 1975. [ Migratory disposition in birds .] Nauka, Moscow. (In Russian). Franson T., Jakobsson S. 1998. Fat storage in male Willow Warblers in spring: Do residence arrive lean or fat ? Auk 115: 759

Open access
Methods to describe the botanical composition of vegetation in grassland research

iterative adaptation of the estimate, which in total should account for 100% when adding all estimated values and iii) by the non-additive properties of these scores, which do not allow for the computation of meaningful sums or means. In such cases, the mid-point of the corresponding interval of the score is often imputed (i.e., a percent value of 62.5 is assumed instead of a score corresponding to an interval from 50 to 75%). It is straightforward that the sum of the assumed values of all species cannot reproduce the sum of the real values of the species. They are just a

Open access
Body mass and fat score changes in recaptured birds during the autumn migration at the Cernek ringing station in Turkey

Body mass and fat score changes in recaptured birds during the autumn migration at the Cernek ringing station in Turkey

The fat level and the body mass of recaptured birds ringed at the Cernek Ringing Station are presented in this study. Data from autumns of 2003-2005 were analysed. Species of different migratory and feeding habits are compared. A total of 351 recaptures of the Blackcap (Sylvia atricapilla), Garden Warbler (S. borin), Reed Warbler (Acrocephalus scirpaceus), Marsh Warbler (A. palustris) and Cetti's Warbler (Cettia cetti) were mist-netted and handled according to the South-East European Bird Migration Network (SEEN) standards.

The mean weight changes of the Reed Warbler and Marsh Warbler and those of the Blackcap and Garden Warbler were similar within each genus but higher in Sylvia spp. as compared to Acrocephalus spp. The recapture rate was the highest in the Cetti's Warbler but the mean weight increase was the lowest as this is essentially a sedentary species. The stopover duration differed among the species. The mean stopover length was similar within Acrocephalus spp. (8.5 days in the Reed Warbler, 6.4 days in the Marsh Warbler) and Sylvia spp. (5.6 days in the Blackcap, 5.4 days in the Garden Warbler) and different in the Cetti's Warbler (16.6 days).

Results indicate that migratory birds use Cernek location as refuelling station during the autumn migration and their fat level and body mass increase, but differ according to feeding and migrating habits.

Open access
Evaluation of Nutritive and Antioxidant Properties of Blanched Leafy Vegetables Consumed in Northern Côte d’Ivoire

Abstract

The aim of this study was to evaluate the effect of steam blanching processing on the nutritive value and the antioxidant properties of five leafy vegetable species (Amaranthus hybridus, Andasonia digitata, Ceiba patendra, Hibiscus sabdariffa and Vigna unguiculata) that are used for sauce preparation in Northern CÔte d'Ivoire. The selected leafy vegetables were subjected to blanching in pressure cooker for 15, 25 and 45 min and the physicochemical properties were determined using AOAC methods. The result of the study revealed that longer time of blanching (higher than 15 min) caused negative impact by reducing nutritive value but positive impact by reducing anti-nutrients and increasing polyphenols. The registered losses (p0.05) at 15 min were as follow: ash (0.08-10.01%), proteins (0.36-12.03%), vitamin C (19.56-68.67%), carotenoids (18.91-55.48%) oxalates (3.58-21.39%) and phytates (10.51-68.02%). The average increase of polyphenols contents at 15 min of blanching was 1.61 to 30.72%. In addition, a slight increase (0.35-4.16%) of fibres content was observed in the studied blanched leafy vegetables. Furthermore, after 15 min of blanching time the residual contents (p0.05) of minerals were: calcium (264.88-844.92 mg/100 g), magnesium (49.45-435.43 mg/100 g), potassium (675-1895.41 mg/100 g), iron (14.54-70.89 mg/100 g) and zinc (9.48-36.46 mg/100 g). All these results suggest that the recommended time of domestic blanching must be less than 15 min for the studied leafy vegetables in order to contribute efficiently to the nutritional requirement and to the food security of Ivorian population

Open access
Landscape Factors Influencing Diversity of Habitat Conditions Across a Watercourse in the Vicinity of Tomaszów Lubelski City in the Roztocze Region (Poland)

Abstract

The aim of the study was a hydromorphological valorisation of the river valley in the Roztocze region using the British method - River Habitat Survey (RHS). As a result of field research two numerical indicators HMS (Habitat Modification Score) and HQA (Habitat Quality Assessment) were identified and purity water classes were defined. The river did not fulfil the requirements of the Water Framework Directive, because its state was defined as poor and moderate. On the base of physical and chemical parameters, in the majority of water studied the watercourses were classified to the first class of purity. Only in one segment waters were below the first class, or even out of class.

Open access
Valuation of natural assets of some raised peat bogs against a background of Bieszczady Mts. landscape of the Lutowiska district

Abstract

The “Land of the Valleys” lying in the area of the Lutowiska district in the Western Bieszczady Mts. is undergoing unwelcome succession-related changes, such as for example the extinction of valuable plant species or even whole plant associations, and the disappearance of the mosaic pattern of biocoenoses. It is therefore necessary to conduct investigations aimed at assessing the natural values of this region.

The natural assets of the Lutowiska district, where the three raised peat bogs under study (Wołosate, Litmirz and Tarnawa) are situated, were assessed using the Oświt [1995] method for the natural valuation of wetlands and associated landscapes. The method involves awarding points to three groups of indicators: (i) the scope and forms of nature conservation; (ii) general natural values; and (iii) the richness of wetland biotopes, plant communities and flora [Oświt and Dembek 1995]. Altogether, the district scored 60.7 valuation points (with 9 points for relief richness included), which allows classifying it as an area with very high natural values (class VIII on a scale of I-X).

Open access
Biotope Determinants of EPT Assamblages Structure – Târnava Watershed (Transylvania, Romania) Case Study

the BMWP score, Transylvanian Review of Systematical and Ecological Research , 14, 177-188. 23. Staicu G., Bănăduc D. and Găldean N., 1998 – The structure of some benthic macroinvertebrates and fishes communities in the Vişeu Watershed, Maramureş, Romania, Travaux du Museum National d Histoire naturelle Grogore Antipa , Bucureşti, XL, 587-608. 24. Ter Braak C. J. F. 986 – Canonical correspondence analysis: a new eigenvector technique for multivariate direct gradient analysis, Ecology , 67, 5, 1167-1179. 25. Ter Braak C. J. F. and Šmilauer P

Open access
The Influence of Some Environmental Variables on Diversity of Ephemeroptera, Plecoptera and Trichoptera Assemblages - Vişeu Basin Case Study

României, Ed. Didactică şi Pedagogică, Bucureşti. (in Romanian) 21. Sedeño-Díaz J. E., Kohlmnan B. and López-López E., 2012 - Benthic macroinvertebrates as indicators of water quality in streams of Costa Rica: using an adaptation of the BMWP score, Transylvanian Review of Systematical and Ecological Research, The Wetlands Diversity, Curtean-Bănăduc et al. (eds), 14, 163-175. 22. Varnosfaderany M. N., Ebrahimi E., Mirghaffry N. and Safyanian A., 2010 - Assessment of the Zayandeh Rud River, Iran, using benthic macroinvertebrates

Open access
Comparison of Fe, Zn, Mn, Cu, Cd and Pb concentration in spruce needles collected in the area of Gdansk and Gdynia in Northern Poland

component scores and principal component loadings. Two first principal components accounted for 81% of variability among the investigated plant material, and the eigen -values for them were equal to 3.67 and 1.19, respectively. As it can be seen in Figure 5 , the samples of spruce needles growing in Gdansk are located in the upper left corner of the two-dimensional plot of PC1 and PC2. Only one of them, sample GK2 is located in the left down area of the plot. This sample (GK2) contained higher amounts of Fe and Pb in comparison with others, which is the reason for its

Open access