Results 21 to 30 of about 168,824 (316)

Concentrações hormonais e desenvolvimento folicular de vacas leiteiras em hipertermia sazonal e aguda Hormone concentration and follicular development in dairy cows under seasonal and acute hyperthermia

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
Avaliaram-se as concentrações hormonais e os parâmetros de desenvolvimento folicular de vacas leiteiras expostas ao calor sazonal e agudo. Dividiram-se os animais em quatro grupos: verão (n=5), outono (n=5), inverno com hipertermia aguda (grupo câmara ...
B.J. Lew, R. Meidan, D. Wolfenson
doaj   +1 more source

Ketosis and its role in Bos taurus reproductive impairment

RUDN Journal of Agronomy and Animal Industries, 2020
The analysis of relevant and significant scientific research on the physiological and biochemical aspects of ketosis, and the main mechanisms of influence on reproductive function in this metabolic pathology is presented. Strengthening breeding potential
Gennady V. Shiryaev, Tatyana I. Stanislavovich, Vladimir P. Politov   +2 more
doaj   +1 more source

Optimal Timing of Ovulation Triggering to Achieve Highest Success Rates in Natural Cycles—An Analysis Based on Follicle Size and Oestradiol Concentration in Natural Cycle IVF

Frontiers in Endocrinology, 2022
IntroductionTiming of ovulation triggering is essential in infertility treatments including treatments based on natural menstrual cycles. However, data on follicle size and oestradiol (E2) concentration are limited.
Anja Helmer, Isotta Magaton, Odile Stalder, Petra Stute, Daniel Surbek, Michael von Wolff   +5 more
doaj   +1 more source

Histochemical features of the structure of fetal ovaries in different stages of gestation from mothers with physiological pregnancy

Journal of Education, Health and Sport, 2021
In the following article specific hystochemical features of the fetal ovaries’ structure from mothers with the physiological pregnancy are considered. All fetals were divided into subgroups by taking into consideration the term of gestation, as well as ...
V. O. Poliasnyi, L. S. Kupriianova
doaj   +1 more source

Recombinant bovine somatotropin in the synchronization of ovulation in crossbred dairy cows (Bos taurus indicus × Bos taurus taurus) [PDF]

Veterinary World, 2020
Aim: The aim of this study was to evaluate the effects of the administration of recombinant bovine somatotropin (rbST) at the moment of implementation of the timed artificial insemination protocol, on follicular dynamics and pregnancy rate in crossbred ...
Fabrício Albani Oliveira, Ítalo Câmara de Almeida, Larissa Marchiori Sena, Jurandy Mauro Penitente-Filho, Ciro Alexandre Alves Torres   +4 more
doaj   +1 more source

ASPIRAÇÃO FOLICULAR VIDEOLAPAROSCÓPICA COMPARATIVA EM OVELHAS DORPER E SANTA INÊS

Ciência Animal Brasileira, 2016
This study aimed to compare the number of aspirated follicles, recovered oocytes, oocyte quality and viability between Dorper and Santa Inês ewes submitted to the videolaparoscopic ovum pick-up.
Endrigo Adonis Braga de Araujo, Sidnei Nunes de Oliveira, Alexandre de Faria Tabet, Rodrigo Freitas Bittencourt, Marcos Chalhoub, Antonio de Lisboa Ribeiro Filho   +5 more
doaj   +1 more source

Effects of supplemented Sauropus androgynus leaves powder on reproductive traits of Indonesian indigenous hens

Journal of the Indonesian Tropical Animal Agriculture, 2022
The aim of this study was to analyze of Sauropus androgynus (SA) leaves powder supplementation on kampung hens reproductive traits. Forty kampung hens aged 4-5 months were distributed randomly into 4 treatments with 10 replications.
H. D. Putranto, U. Santoso
doaj   +1 more source

Stimulation of ZPC Production by Follicle-Stimulating Hormone in the Granulosa Cells of Japanese Quail (Coturnix Japonica)

The Journal of Poultry Science, 2003
Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. Previous studies have indicated that one of the components, a glycoprotein homologous to mammalian ZPC, is produced and ...
Jianzhi Pan, Tomohiro Sasanami, Makoto Mori   +2 more
doaj   +1 more source

Synchronization of ovulation in crossbred dairy heifers using gonadotrophin-releasing hormone agonist, prostaglandin F2a and human chorionic gonadotrophin or estradiol benzoate [PDF]

Brazilian Journal of Medical and Biological Research, 2000
Girolando (Gir x Holstein) is a very common dairy breed in Brazil because it combines the rusticity of Gir (Bos indicus) with the high milk yield of Holstein (Bos taurus).
C. Castilho, A.L.G. Gambini, P. Fernandes, L.A. Trinca, A.B. Teixeira, C.M. Barros   +5 more
doaj   +1 more source

Hair follicle proteoglycans

Journal of Investigative Dermatology, 1993
Proteoglycans are polymorphic macromolecules present in all mammalian tissues, including the skin and its appendages. They consist of a core protein to which one or more glycosaminoglycan chains are covalently attached. Broadly, they can be divided into classes based on location and core protein structure.
openaire   +2 more sources