نتایج جستجو برای: rooster

تعداد نتایج: 413  

Journal: :iranian journal of veterinary research 2015
m. j. heydari s. mohammadzadeh a. kheradmand m. alirezaei

because of a paucity of information on the effect of satureja khuzistanica in male chickens, this study was undertaken to determine the influence of dietary s. khuzistanica powder (skp) on seminal characteristics and testes thiobarbituric acid reactive substances (tbars) content in iranian native breeder rooster. thirty-six 40-week-old roosters were randomly allotted to 3 equal groups and recei...

Journal: :Physics in Medicine and Biology 2021

Abstract Proton therapy treatment for lungs remains challenging as images enabling the detection of inter- and intra-fractional motion, which could be used proton dose adaptation, are not readily available. 4D computed tomography (4DCT) provides high image quality but is rarely available in-room, while in-room cone beam (4DCBCT) suffers from limitations stemming mostly scatter detection. This s...

Journal: :The Journal of Biophysical and Biochemical Cytology 1959
Endre A. Balazs John A. Szirmai Gudrun Bergendahl

The distribution of C(14) was studied in various parts of the rooster comb following treatment with testosterone. The value of gas-phase assay of C(14) in tissue has been demonstrated and the results compared with those of autoradiographic studies on the same tissue. The results of these experiments showed that androgen treatment significantly increases the rate of incorporation of C(14) in var...

Journal: :Current Biology 2013
Tsuyoshi Shimmura Takashi Yoshimura

of a widespread species than to be faced with the challenge of conserving every population because all are distinctive. Undoubtedly, some reptile species have already gone extinct before we even knew they existed. But a lot remain to be discovered: for example, a single square kilometre of Australian desert can contain 14 co-existing species of the lizard genus Ctenotus (many of them so similar...

Journal: :Jurnal Sains dan Teknologi Peternakan 2022

Efforts that can be made to improve the performance of native chickens are by crossing them with Bangkok chickens. This study aims determine growth body weight from cross-breeding between Kampung chicken and chicken. As many as 30 male chicks a cross were used in this study. The crosses rooster chicks. DOC female was 35.22 ± 0.96 grams. There significant increase starting at age 5 weeks 8 age, ...

Journal: :Proceedings of the National Academy of Sciences 1978

Journal: :Poultry science 2000
H M Parker J B Yeatman C D Schultz C D Zumwalt C D McDaniel

Previous research has shown that the sperm quality index (SQI) of rooster semen is indicative of overall semen quality. The objectives of the present experiments were to determine the correlation of the SQI with semen characteristics and fertility and to determine if selection of young males for the SQI would improve fertility. In Experiment 1 semen was collected from 35 Peterson males and was ...

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