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Abstract

Early castration of male small ruminants is regarded as a risk factor for urolithiasis, although the underlying correlations are still unclear. One possible reason is a deferred development of the penis and the urethra after castration. Therefore, we examined the penis and urethra of castrated and intact lambs by ultrasonography to determine the correlation between urethral area and pe- nile cross-sectional area. Ultrasonography was performed in 6-month-old Lacaune crossbred lambs (early castrated, late castrated, and intact; each group, n = 11). Sectional images at 5 loca- tions (glans penis, penile urethra, distal and proximal sigmoid flexure, and ischial arch) were ob- tained to determine the urethral and penile diameters. Urethral and penile cross-sectional areas were calculated. Grey-scale analysis of ultrasound images was performed to evaluate possible differences in the penile texture between the groups. Correlation analyses between both cross-sectional areas showed a significant general correlation for location 2 in all lambs (R = 0.52; P = 0.003), for location 3 in late-castrated lambs, and for location 5 in early-castrated lambs. Statistically significant correlations between the penile and the urethral area of castrated and intact lambs were not evident. Therefore, measurement of the penile cross-sectional area alone does not allow for accurate estimation of urethral size. Statistically significant differences con- cerning the grey-scale analysis between the groups were also not detectable. Thus, simplification of the formerly presented ultrasonographic examination of the urethra is not recommended. In animals at a risk of obstructive urolithiasis, complete urethral examina- tion is essential.

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Authors and Affiliations

M. Sickinger
A. Allugami
K. von Pückler
K. Failing
A. Wehrend
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Abstract

On the basis of about 12500 depth measurements of which 6700 were taken from r/v Profesor Siedlecki, 1300 from r/v Polarstern and the remainder from British navigation charts, a bathymetric chart of the Bransfield Strait in the scale 1:500 000 has been prepared. Within the assumed boundaries the total area of the Bransfield Strait covers 65308.6 square kilometres, of which the Western Basin covers 23.5%, Central Basin — 47.3%, and Eastern Basin 29.2%. Capacity of the whole Bransfield Strait amounts to 38451 km3 . The average depth of the Bransfield Strait is 592 m.

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Authors and Affiliations

Jan Szeliga
Stanisław Rakusa-Suszczewski
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Abstract

Morphological description of seeds is a required step for analysis of biodiversity in natural populations and may give clues to adaptive strategies in species evolution. A cardioid is the curve described by a point of one circumference rolling around another circumference of equal radius. Models based on adjustment of seed shape with cardioid curves have been described for Arabidopsis thaliana and the model legumes Lotus japonicus and Medicago truncatula. In this work the model is applied to analyze seed morphology in populations of two subspecies of Capparis spinosa growing in Tunisia. Adjustment of seed images to cardioid curves, followed by statistical analysis of similarity in the complete images as well as in each of four quadrants, allows an accurate description of seed shape. The results show differences in morphology between subspecies. Seeds of subsp. rupestris present higher diversity of shape than seeds of subsp. spinosa. This may indicate primitiveness of C. subsp. rupestris seeds, associated with nonspecialization. The results are discussed in relation to the ecological strategies of both subspecies in their evolution.

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Authors and Affiliations

Ezzeddine Saadaoui
José Javier Martín Gómez
Emilio Cervantes
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Abstract

The aim of the study was the determination the effect of foliar application of growth regulator containing Ti (Tytanit®), on Lolium multiflorum morphometry, photosynthetic activity, chlorophyll content and chemical composition of dry matter. A pot experiment was carried out in a plant breeding room of Siedlce University, Poland, in 2019. The experimental units were as follows: I) control – plants sprayed with distilled water; II) plants sprayed with 0.02% Tytanit concentration; III) plants sprayed with 0.04% Tytanit concentration; IV) plants sprayed with 0.06% Tytanit concentration. The following parameters were determined: the shoots number, the number and the length of leaf blades, the length of roots, the dry weight of roots, the dry weight of plants per pot and the content of chlorophyll a and b in leaf blades. In addition, maximum and actual efficiency of the leaf photosystem, photochemical and non- photochemical quenching coefficients and the content of total protein, crude fibre, monosaccharides, crude fat, crude ash, Ca, Mg, P, K and the ratio of K/(Ca + Mg), and Ca/P in the dry matter of plants were determined. Used in controlled conditions, the regulator contributed to the growth of most morphological characteristics, improved photosynthetic activity, increased the concentration of chlorophyll a and b, and
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Authors and Affiliations

Jacek Sosnowski
1
ORCID: ORCID
Barbara Wróbel
2
ORCID: ORCID
Milena Truba
1
ORCID: ORCID

  1. Siedlce University of Natural Sciences and Humanities, Institute of Agriculture and Horticulture, Siedlce, Poland
  2. Institute of Technology and Life Sciences – National Research Institute, al. Hrabska 3, 05-090 Raszyn, Falenty, Poland
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Abstract

This study was carried out to determine the morphometric and volumetric features of the mandible in Van cats by using computed tomography (CT) and a three-dimensional (3D) software program. The study also aimed at presenting the biometrical differences of these mea- surements between genders. A total of 16 adult Van cats (8 males, 8 females) were used in the study. The cats were anesthetized using a ketamine-xylazine combination. They were then scanned using CT under anesthesia and their images were obtained. The scanned images of the mandible in each cat were used for the reconstruction of a 3D model by using the MIMICS 20.1 (The Materialise Group, Leuven, Belgium) software program. Later, morphometric (17 parame- ters), volumetric, and surface area measurements were conducted and statistical analyses were carried out. In our morphometric measurements, it was found that TLM (total length of the mandible), PCD (pogonion to coronoid process distance), CAP (length from the indenta- tion between the condyle process and angular process to pogonion), CAC (length from the inden- tation between the condyle process and the angular process to back of alveole C1), CML (length between C1 - M1), RAH (ramus height), MDM (mandible depth at M1), MHP (height of the mandible in front of P3), and ABC (angular process to back of alveole C1 distance) were greater in male cats; while MWM (mandible width at M1 level) was greater in female cats and was statistically significant (p<0.05). The length and height of the mandible were 6.36±2.42 cm and 3.01±1.81 cm in male cats, respectively. On the other hand, in female cats, the length and height of the mandible were 5.89±2.57 cm and 2.71±1.26 cm, respectively. The volume of the mandible was measured to be 7.39±0.93 cm3 in male cats and 5.40±0.49 cm3 in female cats. The surface areas were 63.50±5.27 cm2 in male cats and 52.73±3.89 cm2 in female cats. In con- clusion, in this study, basic morphometric parameters of the mandible in adult Van cats were found by using CT and a 3D modeling program. The differences between male and female cats were also determined in the study.
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Authors and Affiliations

O. Yilmaz
1
İ. Demircioglu
2

  1. Department of Anatomy, Faculty of Veterinary Medicine, Van Yuzuncu Yil University, 65080, Van, Turkey
  2. Department of Anatomy, Faculty of Veterinary Medicine, Harran University, 63200, Şanlıurfa, Turkey
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Abstract

The taxonomy of simply deformed paradoxidids from the Miaolingian (Cambrian) of Słowiec Hill, Holy Cross Mountains, Poland, is revised based on morphometric analysis. The material represents two species: Acadoparadoxides slowiecensis (Czarnocki in Orłowski, 1965) and Hydrocephalus? polonicus (Czarnocki in Orłowski, 1965). A new assemblage zone based on the combined although not precisely known ranges of these two taxa is suggested replacing the previous Paradoxides polonicus Zone of Orłowski (1975, 1988, 1992a). The Acadoparadoxides slowiecensis–Hydrocephalus? polonicus Assemblage Zone corresponds to the middle and upper part of the Wuliuan Stage (lower Miaolingian).
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Authors and Affiliations

Jakub Nowicki
1
Anna Żylińska
1

  1. Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, PL-02-089 Warsaw, Poland

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