Determining the sex of Little Penguins (Eudyptula minor) in northern Bass Strait using morphometric measurements

2004 ◽  
Vol 104 (3) ◽  
pp. 261-265 ◽  
Author(s):  
J. P. Y. Arnould ◽  
P. Dann ◽  
J. M. Cullen
Keyword(s):  
Morphometric Measurements

Observation on the breeding biology of Polypedates teraiensis (Dubois, 1987) (Amphibia: Rhacophoridae)

2017 ◽  
Vol 17 (1) ◽  
pp. 25-32
Author(s):  
Jacinta Lalchhanhimi ◽  
Lalremsanga H.T.
Keyword(s):  
Sexual Dimorphism ◽  
Breeding Season ◽  
Sound Production ◽  
Reproductive Function ◽  
Breeding Biology ◽  
Tree Frog ◽  
University Campus ◽  
Morphometric Measurements ◽  
Advertisement Calls ◽  
Males And Females

The breeding biology of tree frog, Polypedates teraiensis was studied during the breeding season at Mizoram University Campus. It was found that sound production by male during the breeding season was primarily a reproductive function and advertisement calls attract females to the breeding areas and announce other males that a given territory is occupied. The aim of this study was to provide the detailed information on the breeding behaviour and the advertisement calls of Polypedates teraiensis. The morphometric measurements of the amplecting pairs (males and females) for sexual dimorphism along with clutch sizes were also studied.

Estimation of Actual and Ideal Bodyweight Using Morphometric Measurements and Owner Guessed Bodyweight of Adult Draft and Warmblood Horses

2016 ◽  
Vol 39 ◽  
pp. 38-43 ◽  
Author(s):  
Devan N. Catalano ◽  
Robert J. Coleman ◽  
Marcia R. Hathaway ◽  
Molly E. McCue ◽  
Aaron K. Rendahl ◽  
...  
Keyword(s):  
Morphometric Measurements ◽  
Ideal Bodyweight

Sex determination in pre-fledgling chicks of the Black-faced Spoonbill (Platalea minor) based on morphometric measurements

2021 ◽  
Vol 28 (2) ◽  
pp. 117-121
Author(s):  
In-Ki Kwon ◽  
Ji-Yeon Lee ◽  
Jong-Hyun Park ◽  
Eun-Joo Choi ◽  
Ki-Sup Lee ◽  
...  
Keyword(s):  
Sex Determination ◽  
Morphometric Measurements

scholarly journals Results of wellness examinations of 28 African hunting dog (Lycaon pictus) puppies at the Denver Zoological Foundation

2007 ◽  
Vol 78 (1) ◽  
Author(s):  
D.E. Kenny ◽  
K. Mobley ◽  
S. Hinkle ◽  
C. Bickel ◽  
F. Knightly ◽  
...  
Keyword(s):  
Enteric Pathogens ◽  
Age Group ◽  
Lycaon Pictus ◽  
Morphometric Measurements ◽  
Blood Samples ◽  
Dental Eruption ◽  
Hunting Dog ◽  
Physical Examinations ◽  
The Mean ◽  
Complete Blood Counts

Since 2002 the Denver Zoological Foundation has produced 28 African hunting dog (Lycaon Pictus) puppies in 3 litters (7, 14 and 7 pups) from the same dam and sire. Wellness examinations were performed on each puppy. The wellness examinations spanned the range of 6-14 weeks of age. During the wellness examinations, in addition to physical examinations and vaccinations, blood samples for complete blood counts and sera biochemistry were obtained.Weights, morphometric measurements, rectal cultures for enteric pathogens and dental eruption patterns were recorded. Blood samples from each age group were compared with adult values from the Denver Zoo. It was noted that animals from the 14-pup litter were 63.6 % of the mean weight of the two 7-pup litters, but size differences (in, for example, total bodylength) were less apparent. Two organisms were recovered from rectal cultures, namely Yersinia enterocolitica (n = 2) and Plesiomonas shigelloides (n = 3). The following deciduous eruption patterns were also noted; at 6 weeks, I1-3, i1-3, C1, c1, P1-2 and p1-2 (n=7) were present, at 9-10 weeks, P3 and p3 (n=21) , and finally at 12-14 weeks, P4 (n = 28).

Effect of continuous postive-pressure ventilation (CPPV) on edema formation in dog lung

1975 ◽  
Vol 39 (4) ◽  
pp. 672-679 ◽  
Author(s):  
P. Caldini ◽  
J. D. Leith ◽  
M. J. Brennan
Keyword(s):  
Blood Flow ◽  
Pulmonary Arterial Pressure ◽  
Venous Pressure ◽  
Arterial Oxygen Tension ◽  
Lung Parenchyma ◽  
Arterial Oxygen ◽  
Morphometric Measurements ◽  
Edema Formation ◽  
Significant Difference ◽  
Pulmonary Arterial

The effect of CPPV on edema formation in lungs perfused at constant blood flow was studied in whole dogs and in isolated dog lungs. In intact animals, subjected to an increase in left atrial pressure relative to pleural pressure of 40 Torr, pulmonary shunts correlate inversely (r = -0.82) with the level of end-expiratory pressure (PEE). CPPV had no significant effect on total extravasation of liquid even though PEE higher than 20 Torr was effective in preventing liquid from accumulating in the airways. In isolated lobes, perfused at constant blood flow and at a venous pressure of zero, accumulation of liquid occurred when PEE was increased above 8–10 Torr. At comparable levels of pulmonary arterial pressure, an increase in PEE resulted in lesser accumulation of liquid than when pulmonary venous pressure was elevated. Morphometric measurements revealed no significant difference in the distribution of accumulated liquid within the lung parenchyma between lobes made edematous either by raising venous pressuure or by raising PEE. It would appear that CPPV, while beneficial in improving arterial oxygen tension in pulmonary edema, does not prevent extravasation of liquid in lungs perfused at constant blood flow. High levels of PEE appear to damage the lung by favoring accumulation of liquid in the extravascular spaces of the lung.

Morphometric measurements of chorioallantoic membrane vascularity: effects of hypoxia and hyperoxia

1991 ◽  
Vol 260 (4) ◽  
pp. H1385-H1389 ◽  
Author(s):  
D. M. Strick ◽  
R. L. Waycaster ◽  
J. P. Montani ◽  
W. J. Gay ◽  
T. H. Adair
Keyword(s):  
Prolonged Exposure ◽  
Chorioallantoic Membrane ◽  
Normal Growth ◽  
Vascular Density ◽  
Image Analysis System ◽  
Morphometric Measurements ◽  
Chick Embryo Chorioallantoic Membrane ◽  
Angiogenesis Process ◽  
Image Area ◽  
Analysis System

We studied the effects of hypoxia and hyperoxia on the angiogenesis process in the chick embryo chorioallantoic membrane (CAM) using four different morphometric measurements of vascularity. Chick eggs were incubated in various oxygen atmospheres (12, 16, 21, 45, or 70% oxygen) beginning on the 7th day of development, and vascularity was measured on the 14th day. Measurements of vascularity included vessel endpoint density (VED), length density, fractional image area, and a vascular density index. All measurements were made on blood vessels in randomly selected areas of CAM using a computerized image analysis system. An opaque colloidal carbon-albumin perfusate was used as a vascular marker. All four measurements showed that vascularity of CAM was inversely related to the oxygen tension to which the embryos were subjected. The VED, an estimate of total number of pre- and postcapillary vessels, exhibited the greatest degree of change, but overall changes in vascularity were modest. Prolonged exposure to a 12% oxygen atmosphere increased VED by approximately 16%, whereas 70% oxygen decreased VED by approximately 19% compared with room air control groups. We also studied the normal growth of CAM vasculature from days 8 to 18 of development. In these studies, the values of VED increased progressively throughout the entire period of development, whereas the other measurements of vascularity reached maximum values by the 14th day. We conclude that hypoxia stimulates angiogenesis in the CAM in a dose-related manner, hyperoxia inhibits CAM angiogenesis in a dose-related manner, and VED provides a sensitive estimate of vascularity in chick CAM throughout its development.

Diagnostic value of AgNOR method in thyroid cytopathology: Correlation with morphometric measurements

1996 ◽  
Vol 14 (2) ◽  
pp. 140-144 ◽  
Author(s):  
Tamás Solymosi ◽  
Veronika Tóth ◽  
Zoltán Sápi ◽  
Miklós Bodó ◽  
István Gál ◽  
...  
Keyword(s):  
Diagnostic Value ◽  
Morphometric Measurements ◽  
Thyroid Cytopathology

Deep Bypasses to the Distal Posterior Circulation

Neurosurgery ◽  
2010 ◽  
Vol 66 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Zsolt Zador ◽  
Daniel C. Lu ◽  
Christine M. Arnold ◽  
Michael T. Lawton
Keyword(s):  
Temporal Lobe ◽  
Artery Bypass ◽  
Superficial Temporal Artery ◽  
Temporal Artery ◽  
Posterior Circulation ◽  
Superior Cerebellar Artery ◽  
Brain Shift ◽  
Morphometric Measurements ◽  
Subtemporal Approach ◽  
Cerebellar Artery

Abstract OBJECTIVE The subtemporal approach for a superficial temporal artery–to–superior cerebellar artery bypass requires significant superior retraction that can injure the temporal lobe, compromise veins, and cause edema postoperatively. In contrast, the pretemporal approach requires posterolateral retraction that seems to be less injurious to the temporal lobe and better tolerated clinically. We hypothesized that the pretemporal approach provides ample exposure, more gentle retraction, and better clinical results than the subtemporal approach. METHODS Standard orbitozygomatic-pterional and subtemporal approaches were performed on both sides of 4 formalin-fixed cadaver heads for morphometric measurements. Temporal lobe retraction was quantified for each approach in terms of brain shift and retraction pressure by using both sides of 3 fresh, unfixed cadaver heads. Similar morphometric measurements were made in 14 patients in whom bypasses to the distal posterior circulation were performed. The effect of temporal lobe retraction was assessed with edema volumes on postoperative computed tomography scans. RESULTS In cadaver heads and in patients, the pretemporal approach optimized exposure of the P2A segment of the posterior cerebral artery (PCA) and the subtemporal approach optimized exposure of the lateral pontomesencephalic segment of the superior cerebellar artery (SCA). Working depths and lengths of exposed artery were similar with these 2 approaches, but the PCA was a larger recipient than the SCA. Brain shift was 42% less with pretemporal than with subtemporal retraction, and retraction pressure was 43% less with pretemporal than with subtemporal retraction. The volume of temporal lobe edema was 56% less in patients with bypasses performed with the pretemporal approach as compared with the subtemporal approach. CONCLUSION Pretemporal exposure of the PCA is equivalent to subtemporal exposure of the SCA, but the pretemporal approach is facilitated by a larger recipient artery. Posterolateral temporal lobe retraction associated with the pretemporal approach is gentler than superior retraction with the subtemporal approach. These results validate our preference for the pretemporal approach over the subtemporal approach when performing deep bypasses to the posterior circulation.

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