Polymorphisms in the 5′ regulatory region of the GPR54 gene and their association with sexual maturity in cattle

2011 ◽  
Vol 78 (12) ◽  
pp. 894-894 ◽  
Author(s):  
Hong-Quan Chen ◽  
Yi-Peng Zhang ◽  
Hua Chen ◽  
Jie Qin ◽  
Li-Sheng Wang
Keyword(s):  
Sexual Maturity ◽  
Regulatory Region ◽  
Gpr54 Gene

Characterisation of KiSS1R gene and Non genetic factors affecting reproductive traits in Indian goats

2019 ◽  
Author(s):  
Siddhant Sekhar Sahoo ◽  
Chinmoy Mishra ◽  
Stuti Tanaya Mohanty ◽  
Rakesh Kaushik ◽  
P. K. Rout ◽  
...  
Keyword(s):  
Sexual Maturity ◽  
Genetic Factors ◽  
Reproductive Traits ◽  
Factors Affecting ◽  
Polymorphic Pattern ◽  
Nucleotide Sequence Alignment ◽  
Goat Population ◽  
Black Bengal Goat ◽  
Gpr54 Gene ◽  
Ncbi Blast

This study was undertaken to explore the genetic polymorphism in the KiSS1R (GPR54) gene from 80 Black Bengal, 50 Ganjam and 20 Raighar goat. Each of the sampled goats was recorded for its reproductive traits. The genomic DNA was isolated from the collected blood samples. The target 3’ UTR comprising of 246 bp fragment of KiSS1R gene was successfully amplified using the specific primer. Amplified samples were subjected for HRM analysis followed by sequencing. The nucleotide sequence alignment with the retrieved DNA sequence from NCBI BLAST confirmed absence of polymorphic pattern in KiSS1R gene in 3’ UTR. However, in the studied populations breed had significant effect on littersize, kidding interval and age at sexual maturity. It was found that age at sexual maturity and kidding interval were the highest in Ganjam goat population as compared to Raighar and Black Bengal goat population. Litter size was found highest in Black Bengal goat.

THE »EARLY-ANDROGEN« SYNDROME; ITS DEVELOPMENT AND THE RESPONSE TO HEMI-SPAYING

1964 ◽  
Vol 45 (1) ◽  
pp. 1-12 ◽  
Author(s):  
H. E. Swanson ◽  
J. J. van der Werff ten Bosch
Keyword(s):  
Sexual Maturity ◽  
Compensatory Growth ◽  
Testosterone Propionate ◽  
Single Injection ◽  
Weight Increase ◽  
Corpora Lutea ◽  
Transition Stage ◽  
Adult Females

ABSTRACT The »early-androgen« syndrome in the rat – i. e. anovulatory ovaries in adult females after a single injection of testosterone propionate (TP) within a week of birth – may not become apparent until some time after the attainment of sexual maturity. Large doses (50 or 100 μg) of TP were effective earlier than lower doses (5 or 10 μg). Rats which received 5 μg TP were ovulating at 10 weeks of age, mated but were infertile at 13 weeks of age, and were anovulatory at 21 weeks. In rats between 10 and 13 weeks old there was a marked fall in the number of corpora lutea in the ovaries of animals which had been given 5 μg TP. Hemi-spaying was followed by compensatory growth of the remaining ovary which consisted of corpora lutea in ovulating, and of follicles in anovulatory rats; little or no compensatory weight increase occurred in animals which seemed to be in the transition stage from the ovulatory to the anovulatory condition.

PLASMA LH, TESTOSTERONE AND DHT IN THE PIG FROM BIRTH TO SEXUAL MATURITY

1973 ◽  
Vol 71 (4_Suppl) ◽  
pp. S148 ◽  
Author(s):  
F. Elsaesser ◽  
D. K. Pomerantz ◽  
F. Ellendorff ◽  
K. Kreikenbaum ◽  
A. König
Keyword(s):  
Sexual Maturity

Estimation of Sexual Maturity Based on Morphometrics of Genital Organs in Male Northern Fur Seals, Callorhinus ursinus

Mammal Study ◽  
2020 ◽  
Vol 46 (1) ◽  
Author(s):  
Yukino Hirakawa ◽  
Takanori Horimoto ◽  
Ippei Suzuki ◽  
Yoko Mitani
Keyword(s):  
Sexual Maturity ◽  
Callorhinus Ursinus ◽  
Fur Seals ◽  
Northern Fur Seals
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