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 Morphometric age and sex identification of Eurasian Collared Doves (Streptopelia decaocto friv.)

2019 ◽  
Vol 8 (1-2) ◽  
pp. 113-119
Author(s):  
Sámuel Zsolt Varga ◽  
Lajos Juhász
Keyword(s):  
Sex Determination ◽  
Sex Identification ◽  
Field Conditions ◽  
Molecular Sexing ◽  
Morphometric Data ◽  
Morphometric Measurements ◽  
Sample Number ◽  
Morphometric Method ◽  
Highly Correlated ◽  
Age And Sex

In this research, our main goal was to test, if there is an effective, yet economical way to perform native sexing on Columbidae species in field conditions. Since molecular sexing is not available among field conditions, a morphometric method was aimed to be used. After morphometric measurements, autopsy was performed to determine the sex of collected birds. The novelty of the method is that we added a new measure point to improve age and sex determination. The method was tested on Eurasian Collared Doves (n=18). Our result showed that the gap of pubic bones is highly correlated to age and most of the main morphometric data, despite the low sample number.

scholarly journals Sexual size dimorphism and sex determination by morphometric measurements in the Coscoroba Swan

2011 ◽  
Vol 46 (3) ◽  
pp. 177-184 ◽  
Author(s):  
Cecilia Perez Calabuig ◽  
Andy J. Green ◽  
Miguel Ferrer ◽  
Roberto Muriel ◽  
Heden Moreira
Keyword(s):  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Morphometric Measurements ◽  
Size Dimorphism

scholarly journals A study on sacral index and its uses in sex determination

2020 ◽  
Vol 11 (SPL2) ◽  
pp. 264-266
Author(s):  
Gunapriya Raghunath ◽  
Yuvaraj M ◽  
Aishwarya V ◽  
Balaji K ◽  
Karthikeyan G ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Racial Differences ◽  
Complex Structure ◽  
Age Groups ◽  
Morphometric Measurements ◽  
Spinal Nerves ◽  
The Individual

The human sacrum is a complex structure and provides accommodation for spinal nerves which stabilises the pelvis. Morphometric measurements of sacrum determine the sex of the individual. The measurement of sacral index using the sacrum bone is considered as one of the best methods for determination of sex. The aim of this study is to find out the importance of sacral index in sexual dimorphism and to compare the findings with various age groups. 100 fully ossified sacral bones were collected from department of Anatomy. Average sacral length and breadth were taken by using sliding Vernier caliper and sacral index was calculated. The obtained values were tabulated against their respective parameters and then interpreted for the study. Avergae sacral index in females (109) is significantly greater than males (94). As per present study sacral index can reliably identify 58% of male sacrum and 42% of female sacrum. It is therefore a quite reliable and significant criteria for sex determination of sacrum. Thus, regional and racial differences in sacrum along with sacral index can be used for anatomical, medico-legal and anthropological purposes.

Sex determination banned in India

Nature ◽  
1996 ◽  
Vol 379 (6562) ◽  
pp. 201-201
Keyword(s):  
Sex Determination

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.

Sign in / Sign up

Export Citation Format

Share Document