Wool productivity and marketable properties of sheepskins of the new domestic dual-purpose sheep breed – Russian meat merino

2021 ◽  
pp. 12-19
Author(s):  
A. Yu. Lavrentieva ◽  
E. N. Chernobay ◽  
V. R. Plakhtyukova ◽  
S. N. Shumaenko ◽  
I. I. Dmitrik
Keyword(s):  
Hair Follicles ◽  
Comprehensive Assessment ◽  
The Body ◽  
Point Scale ◽  
Dual Purpose ◽  
Objective Indicator ◽  
Histological Studies ◽  
Body Side ◽  
Morphological Studies ◽  
Fiber Fineness

The results of a comprehensive assessment of the runes and morphological studies of the skin and wool coat of a new breed of Russian meat merino in comparison with domestic breeds Manych merino and Stavropol breed have been presented in the article. The detailed characteristics and description of the main properties of the coat and histological studies of the skin have been given. The results of the research have shown that stud rams and ewes of Russian meat merino breed have had an advantage over the domestic Manych merino and Stavropol sheep breeds in terms of wool clip and yield of pure wool, respectively, by 48,8; 79,4 and 3,6; 16,0 %, and 62,3–68,1 %. The fiber fineness on the body side of rams and ewes of Russian meat merino breed was in the range of 20,5 and 19,1 microns (70 q), while in rams and ewes of Manych merino and Stavropol breed these fluctuations were 20,7–21,8 microns (64 q). It should be noted that according to the 100-point scale of the comprehensive assessment of the rune all animals of Russian meat merino breed groups were rated “excellent” (more than 95 points). The study of the commercial properties of Russian meat merino sheepskins has shown the superiority in weight of paired sheepskins and their area over rams and ewes of Manych merino, respectively, by 24,3; 38,1 and 1,8; 5,8 %. Over the animals of Stavropol breed the superiority was 8,3; 9,8 and 3,8; 5,4 %. In terms of the thickness of the leather fabric, unprocessed sheepskins of Russian meat merino breed exceeded the indicators of rams and ewes of Manych merino by 26,7 and 19,3 %, and rams and ewes of Stavropol breed by 8,6 and 12,1 %, respectively. The ratio of the pilar layer of the skin to the reticular layer in Russian meat merino breed was less by 0,8-0,11 and 0,13-0,32 units, which indicates the superior strength of the skin tissue. The ratio of secondary hair follicles to primary ones is the most objective indicator of wool productivity. So, in animals of Russian meat merino breed this ratio is higher than in the Manych merino and Stavropol breed by 1,0 or 9,3 % and 1,2 or 11,3 % in rams, and 0,9 or 10,1 % and 1,7 or 20,9 % in ewes, respectively.

Men’s Hunger, Food Consumption, and Preferences for Female Body Types

2014 ◽  
Vol 45 (6) ◽  
pp. 495-497 ◽  
Author(s):  
Nicolas Guéguen
Keyword(s):  
Food Consumption ◽  
Female Body ◽  
The Body ◽  
Slender Body ◽  
Mediation Effect ◽  
Point Scale ◽  
Body Type ◽  
Experimental Conditions

Nelson and Morrison (2005 , study 3) reported that men who feel hungry preferred heavier women. The present study replicates these results by using real photographs of women and examines the mediation effect of hunger scores. Men were solicited while entering or leaving a restaurant and asked to report their hunger on a 10-point scale. Afterwards, they were presented with three photographs of a woman in a bikini: One with a slim body type, one with a slender body type, and one with a slightly chubby body. The participants were asked to indicate their preference. Results showed that the participants entering the restaurant preferred the chubby body type more while satiated men preferred the thinner or slender body types. It was also found that the relation between experimental conditions and the choices of the body type was mediated by men’s hunger scores.

scholarly journals MORPHOLOGICAL STUDIES IN EXPERIMENTAL CRETINISM

1913 ◽  
Vol 17 (6) ◽  
pp. 636-652 ◽  
Author(s):  
Arthur L. Tatum
Keyword(s):  
Adrenal Glands ◽  
The Body ◽  
The Other ◽  
Degenerative Changes ◽  
Morphological Studies ◽  
Cellular Changes ◽  
Anatomical Basis ◽  
Parenchymatous Organ ◽  
Islands Of Langerhans

In summarizing the findings of this paper it may be said that degenerative changes have been noted in practically every parenchymatous organ. Among these the most striking has been that of serous imbibition by the most active cells of these organs. In regard to the changes in the glands of internal secretion, the findings corroborate the statements of Cushing in regard to hypophysectomy, that removal of one gland of internal secretion results in changes in all the other glands. In this case, degenerative changes predominate in the hypophysis, thymus, ovary, and testis, while hyperplasia is seen in the islands of Langerhans and the medullas of the adrenal glands. Finally, in the rabbit athyroidism is responsible for grave degenerative changes in practically all organs and tissues of the body, and many of the symptoms of cretinism have an anatomical basis in organic cellular changes.

scholarly journals Body side-specific changes in sensorimotor processing of movement feedback in a walking insect

2019 ◽  
Vol 122 (5) ◽  
pp. 2173-2186 ◽  
Author(s):  
Joscha Schmitz ◽  
Matthias Gruhn ◽  
Ansgar Büschges
Keyword(s):  
Stick Insect ◽  
The Body ◽  
Motor Output ◽  
Chordotonal Organ ◽  
Stimulus Velocity ◽  
Motor Processing ◽  
Sensorimotor Processing ◽  
Body Side ◽  
The Difference ◽  
Leg Kinematics

Feedback from load and movement sensors can modify timing and magnitude of the motor output in the stepping stick insect. One source of feedback is stretch reception by the femoral chordotonal organ (fCO), which encodes such parameters as the femorotibial (FTi) joint angle, the angular velocity, and its acceleration. Stimulation of the fCO causes a postural resistance reflex, during quiescence, and can elicit the opposite, so-called active reaction (AR), which assists ongoing flexion during active movements. In the present study, we investigated the role of fCO feedback for the difference in likelihood of generating ARs on the inside vs. the outside during curve stepping. We analyzed the effects of fCO stimulation on the motor output to the FTi and the neighboring coxa-trochanter and thorax-coxa joints of the middle leg. In inside and outside turns, the probability for ARs increases with increasing starting angle and decreasing stimulus velocity; furthermore, it is independent of the total angular excursion. However, the transition between stance and swing motor activity always occurs after a specific angular excursion, independent of the turning direction. Feedback from the fCO also has an excitatory influence on levator trochanteris motoneurons (MNs) during inside and outside turns, whereas the same feedback affects protractor coxae MNs only during outside steps. Our results suggest joint- and body side-dependent processing of fCO feedback. A shift in gain may be responsible for different AR probabilities between inside and outside turning, whereas the general control mechanism for ARs is unchanged. NEW & NOTEWORTHY We show that parameters of movement feedback from the tibia in an insect during curve walking are processed in a body side-specific manner, and how. From our results it is highly conceivable that the difference in motor response to the feedback supports the body side-specific leg kinematics during turning. Future studies will need to determine the source for the inputs that determine the local changes in sensory-motor processing.

scholarly journals The Role of Extracellular Vesicles in Cutaneous Remodeling and Hair Follicle Dynamics

2019 ◽  
Vol 20 (11) ◽  
pp. 2758 ◽  
Author(s):  
Elisa Carrasco ◽  
Gonzalo Soto-Heredero ◽  
María Mittelbrunn
Keyword(s):  
Hair Follicle ◽  
Extracellular Vesicles ◽  
Cell Function ◽  
Hair Follicles ◽  
The Body ◽  
Epithelial Stem Cells ◽  
Therapeutic Approaches ◽  
Waste Products ◽  
Efficient Treatment

Extracellular vesicles (EVs), including exosomes, microvesicles, and apoptotic bodies, are cell-derived membranous structures that were originally catalogued as a way of releasing cellular waste products. Since the discovery of their function in intercellular communication as carriers of proteins, lipids, and DNA and RNA molecules, numerous therapeutic approaches have focused on the use of EVs, in part because of their minimized risk compared to cell-based therapies. The skin is the organ with the largest surface in the body. Besides the importance of its body barrier function, much attention has been paid to the skin in regenerative medicine because of its cosmetic aspect, which is closely related to disorders affecting pigmentation and the presence or absence of hair follicles. The use of exosomes in therapeutic approaches for cutaneous wound healing has been reported and is briefly reviewed here. However, less attention has been paid to emerging interest in the potential capacity of EVs as modulators of hair follicle dynamics. Hair follicles are skin appendices that mainly comprise an epidermal and a mesenchymal component, with the former including a major reservoir of epithelial stem cells but also melanocytes and other cell types. Hair follicles continuously cycle, undergoing consecutive phases of resting, growing, and regression. Many biomolecules carried by EVs have been involved in the control of the hair follicle cycle and stem cell function. Thus, investigating the role of either naturally produced or therapeutically delivered EVs as signaling vehicles potentially involved in skin homeostasis and hair cycling may be an important step in the attempt to design future strategies towards the efficient treatment of several skin disorders.

scholarly journals A hidradenitis suppurativa nőgyógyászati vonatkozásai

2019 ◽  
Vol 160 (8) ◽  
pp. 291-299
Author(s):  
Norbert Kiss ◽  
Dóra Plázár ◽  
Kende Lőrincz ◽  
András Bánvölgyi ◽  
Sándor Valent ◽  
...  
Keyword(s):  
Hidradenitis Suppurativa ◽  
Clinical Symptoms ◽  
Social Stigma ◽  
Chronic Inflammatory Disease ◽  
Hair Follicles ◽  
The Body ◽  
Childbearing Age ◽  
Severe Condition ◽  
Appropriate Treatment ◽  
Gynecological Care

Abstract: Hidradenitis suppurativa is a chronic inflammatory disease of the hair follicles, usually presenting after puberty on the apocrine gland-bearing areas of the body. It usually flares up periodically and can lead to a severe condition affecting the 20–40-year-old childbearing age group. HS occurs more commonly in women. The main clinical features consist of painful, cicatrizing nodules and abscesses which develop mostly in the axillary, inguinal, genital and perianal regions and also on the breasts. HS is often accompanied by severe pain and malodorous discharge, both of which cause significant psychological stress and social stigma. Our main aim with this review paper is to highlight the gynecological aspects of this disease, as many times – due to the typical localization of the disease – patients seek gynecological care first when they experience the first symptoms of this disease. The most important classification of HS is the Hurley scale, which is based on the severity of the clinical symptoms. In recent years, numerous clinical trials have been conducted to seek optimized care of HS patients. Several drugs are used for the treatment of HS, but in most cases, the treatment has to be switched many times. It is of great importance to carefully follow comorbidities and possible pregnancies as in these cases, careful selection of treatment is required. Thus, HS is not only a dermatological, but also a gynecological disease. With an appropriate treatment and follow-up, the disease can be effectively handled. Orv Hetil. 2019; 160(8): 291–299.

scholarly journals Identification and Robustness Analysis of Powertrain Excitation Forces

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Xiao-ang Liu ◽  
Yechi Ma ◽  
Chunlei Jiang ◽  
Xiuxiu Sun
Keyword(s):  
Dynamic Response ◽  
Robustness Analysis ◽  
The Body ◽  
Degree Of Freedom ◽  
Acceleration Phase ◽  
Identification Methods ◽  
Body Side ◽  
Test Input ◽  
Six Degree Of Freedom ◽  
Vehicle Powertrain

In order to get the excitation forces of the vehicle powertrain, a six-degree-of-freedom model of the powertrain mounting system is established. Two different identification methods are presented. Through the test of mount dynamic response, the powertrain excitations identified through these two methods are compared. The results show that the powertrain excitations identified through two methods are basically the same, since the mount accelerations at the body side are really small. The identified excitation is verified by comparing the deformation of torque strut. The robustness analysis of the mount acceleration phase affecting the identification results is also proposed. Improving the accuracy of phase in test input is helpful to improve the accuracy of identification results.

scholarly journals On a new species of the genus Moenkhausia Eigenmann (Ostariophysi: Characidae)

Zootaxa ◽  
2007 ◽  
Vol 1525 (1) ◽  
pp. 61-68 ◽  
Author(s):  
PAULO H.F. LUCINDA ◽  
LUIZ R. MALABARBA ◽  
RICARDO C. BENINE
Keyword(s):  
New Species ◽  
Distribution Pattern ◽  
Lateral Line ◽  
The Body ◽  
Dark Spot ◽  
Lateral Line Scale ◽  
Caudal Fin ◽  
Body Side ◽  
Line Scale ◽  
A New Species

A new species of the genus Moenkhausia is described from the middle portions of the Rio Tocantins and tentatively from the Rio Apure in Venezuela, Rio Orinoco drainage. It is diagnosed by the presence of a dark spot in the half proximal length of the upper caudal-fin lobe, and by the presence of a large, irregularly shaped humeral spot located above the sixth to ninth perforated lateral line scale which is more posteriorly positioned along the body side in relation to other members of the genus. The distribution pattern of the new species is discussed.

A detailed taxonomic study on two new and one known species of Anaplectus De Coninck & Schuurmans Stekhoven, 1933 (Nematoda: Plectidae)

Zootaxa ◽  
2020 ◽  
Vol 4877 (2) ◽  
pp. 329-344
Author(s):  
REHMAT JAHAN ◽  
RAHMAT KHAN ◽  
MOHAMMAD MAHBOOB ◽  
QUDSIA TAHSEEN
Keyword(s):  
Dorsal Side ◽  
The Body ◽  
Taxonomic Study ◽  
Body Side ◽  
Spicule Length ◽  
Female Tail

This paper provides descriptions of two new and one known species of the genus Anaplectus De Coninck & Schuurmans Stekhoven, 1933. Anaplectus sudhausi sp. nov. is characterised by leaf-shaped lips interspersed with interlabial liplets; bifid apices of the lateral lips; cheilostom with non-cuticularised walls; gymnostom with cuticularised arcuate walls; 120–132 sublateral hypodermal glands on each body side with an additional 5–8 smaller subdorsal hypodermal glands; female tail with three caudal setae; males with arcuate spicules having manubrium slightly wider than calomus or blade, last median tubulus or supplement about half the spicule length and tail terminus with a weakly cuticularised spinneret. A. labiosulcus sp. nov. is characterised by 115–123 sublateral hypodermal glands on each side of the body with those on the dorsal side usually larger than the ventrals; the 5–6 anteriormost glands are unpaired and arranged linearly; lips with cuticularised interlabial grooves; gymnostom arched, occasionally double-arched and caudal glands grouped and opening through a cuticularised spinneret. A. granulosus (Bastian, 1865) De Coninck & Schuurmans Stekhoven, 1933 has been redescribed with some minor differences from previous descriptions.

scholarly journals Sicuophora (Syn. Wichtermania) multigranularis from Quasipaa spinosa (Anura): morphological and molecular study, with emphasis on validity of Sicuophora (Armophorea, Clevelandellida)

Parasite ◽  
2018 ◽  
Vol 25 ◽  
pp. 38 ◽  
Author(s):  
Can Li ◽  
Weishan Zhao ◽  
Dong Zhang ◽  
Runqiu Wang ◽  
Guitang Wang ◽  
...  
Keyword(s):  
Taxonomic Status ◽  
Genetic Data ◽  
Molecular Study ◽  
Molecular Data ◽  
Silver Impregnation ◽  
The Body ◽  
Rrna Gene ◽  
Morphological Studies ◽  
The Family ◽  
The Right

Morphological studies of Sicuophora (Syn. Wichtermania) multigranularis Xiao et al., 2002, from the rectum of the frog, Quasipaa spinosa, performed using silver impregnation and scanning electron microscopy, confirmed the following newly recognized features: (1) only one apical suture on the right surface; (2) two naked regions at the posterior end of both the left and the right side of the body. Phylogenetic analysis based on the SSU-rRNA gene showed that S. multigranularis is a sister to a clade comprising all other Clevelandellida, strongly supporting the validity of the genus Sicuophora. This is also the first molecular data obtained for the genus Sicuophora. Because of the lack of molecular data, it will be necessary to obtain more genetic data from the family Sicuophoridae to discuss the question of the taxonomic status of the genus Sicuophora.

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