Results 21 to 30 of about 855,240 (225)

Alternative adjustment of scrotal circumference for growth traits in Nellore cattle

open access: yesRevista Brasileira de Zootecnia, 2020
The objective of this study was to estimate adjustment factors of scrotal circumference for growth traits in Nellore cattle. Measurement at post-yearling of scrotal circumference from 100,107 Nellore was adjusted for six traits: age (A), body weight (BW),
Bárbara Mazetti Nascimento   +4 more
doaj   +1 more source

SEXUAL PRECOCITY IN THE MALE [PDF]

open access: yesArchives of Pediatrics & Adolescent Medicine, 1918
SYMPTOMS In sexual precocity of the male we observe as the most striking feature a premature, disproportionate and excessive development of the genitals to the size of those of the full grown man, and also an early development of the secondary sexual characteristics, such as the growth of hairs ad genitalia, ad anum, in the axillae, on the face, and ...
openaire   +2 more sources

Sexual orientation and drive: a comparative pilot study on sexual desire [PDF]

open access: yes, 2017
Many studies addressing sexual drive and hypersexuality stated that homosexuals are used to report higher levels of sexual desire and compulsive sexual behaviors. Literature showed a lack of comparisons between perceived level of desire in hetero and gay
Piacenza, Scipione   +7 more
core   +1 more source

Tissue expression profiles unveil the gene interaction of hepatopancreas, eyestalk, and ovary in the precocious female Chinese mitten crab, Eriocheir sinensis

open access: yesBMC Genetics, 2019
Background Sexual precocity is a common biological phenomenon in animal species. A large number of precocity individuals were identified in Chinese mitten crab Eriocheir sinensis, which caused huge economic loss annually.
Xiaowen Chen   +5 more
doaj   +1 more source

Central precocious puberty: A case report

open access: yesMedical Journal of Dr. D.Y. Patil Vidyapeeth, 2020
Precocious puberty is the onset of physical and hormonal signs of pubertal development before the age of 9 years in males and 8 years in females. A 2-year 9-month-old Indian male child was brought to the hospital with complaints of excessive growth of ...
Zubin Ajay Mahajan   +1 more
doaj   +1 more source

Short communication: Genetic parameters for post-weaning visual scores and reproductive traits in Suffolk sheep

open access: yesSpanish Journal of Agricultural Research, 2018
The aim of this study was to estimate the coefficients of heritability and genetic correlations among visual scores (conformation, CPW; precocity, PPW; musculature, MPW) and reproductive traits: age at first lambing (AFL) and scrotal circumference (SC ...
Juliana V. Portes   +4 more
doaj   +1 more source

Anti-Müllerian hormone concentration and scrotal circumference as predictors of fertility-linked characteristics in male Brahman and Simmental bulls [PDF]

open access: yesRevista Brasileira de Zootecnia
This study investigates whether pre-pubertal scrotal circumference (SC) and anti-Müllerian hormone (AMH) concentrations indicate sexual precocity in Brahman and Simmental bulls. Fifty-three bulls (Brahman, n = 27; Simmental, n = 26) were used.
Renata Maculan   +7 more
doaj   +1 more source

Comparison among three approaches for evaluation of sexual precocity in Nellore cattle

open access: yesAnimal, 2007
Restricted breeding seasons used in beef cattle produce censored data for reproduction traits measured in regard to these seasons. To analyze these data, adequate methods must be used. The objective of this paper was to compare three approaches aiming to
E. Pereira   +4 more
doaj   +1 more source

Can scrotal circumference-based selection discard bulls with good productive and reproductive potential? [PDF]

open access: yesPLoS ONE, 2018
Nonlinear mixed models were used to describe longitudinal scrotal circumference (SC) measurements of Nellore bulls. Models comparisons were based on Akaike's information criterion, Bayesian information criterion, error sum of squares, adjusted R2 and ...
Jurandy Mauro Penitente-Filho   +13 more
doaj   +1 more source

Pelvic Ultrasound in Diagnosing and Evaluating the Efficacy of Gonadotropin-Releasing Hormone Agonist Therapy in Girls With Idiopathic Central Precocious Puberty

open access: yesFrontiers in Pharmacology, 2019
Background and Objective: Idiopathic central precocious puberty (ICPP) is characterized by early pubertal changes, the acceleration of growth velocity, and rapid bone maturation that often results in reduced adult height.
Hong-kui Yu   +5 more
doaj   +1 more source

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