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20 results for “Progesterone”
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Research ArticleOpen accessEvery word in the titleExogenous Progesterone for Offspring Sex Ratio Manipulation in Arabic Chickens (Gallus turcicus) Leading to Increasing Female Chicks ProportionIswati, Muhammad Halim Natsir, Gatot Ciptadi, Trinil SusilawatiFemale birds of egg-laying hens are more valuable than males, because males bird have no commercial value. The opportunity to manipulate offspring sex ratio in poultry has been observed in female birds; hence, female birds have heterogametic ZW chromosomes. High progesterone concentration 2-5 h before ovulation is thought to affect the segregation of female sex chromosomes as the basis for … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 17 Feb 2021 · 7,500 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleβ-carotene Supplementation Increases Progesterone Concentration and Glutathione Peroxidase Activity Following Alternative Progesterone Primed Oestrous Synchronization Protocol in GoatsDominic Lado Marino Gore, Khoboso Christina LehloenyaThe present study evaluated the effect of β-carotene supplementation and oestrous synchronization protocol on ovarian activity and fertility of Saanen does during the breeding season. The supplemented group received 100 mg β-carotene during the breeding and all does were synchronised with Controlled Internal Drug Release dispenser (CIDR) and injected with cloprostenol at CIDR withdrawal. One group of does were injected … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 3 · 8 Aug 2020 · 6,896 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNoninvasive Measurement of Fecal Progesterone Concentration in Toy Poodles by Time Resolved Fluoroimmunoassay (TR-FIA)Satoshi Sugimura, Kaori Narita, Hideaki Yamashiro et al.Progesterone is an important reproductive hormone and measurement of its level by repeated blood samplings is beneficial to monitoring of estrus cycle. However, since toy poodles have a small body size and thin-walled blood vessels, repeated blood samplings cause stress and affect their preparation for mating or artificial insemination (AI). Therefore, a noninvasive method for monitoring progesterone concentration should be … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 6,564 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effect of Post-Mating Progesterone Supplement on Pregnancy and Lambing Rates of Ewes Bred Out-of-seasonMustafa Q. Husein, Mohammed M. Ababneh, Jomana F. HijaziThe objective of this experiment was to determine whether post-mating progesterone (P4) supplement improves pregnancy and lambing rates in ewes bred during the seasonal anestrous period. In June, 39 synchronized to estrus Awassi ewes were allowed with four harnessed fertile rams immediately following CIDR-G device removal (day 0 and 0 hour). Five days following ram introduction, ewes were randomly assigned … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 3 · 31 Dec 2007 · 6,899 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTreatment of Ovarian Inactivity in Mares During the Breeding Season with PMSG/hCG, PMSG or GnRH and the Effect of Treatment on Estradiol and Progesterone ConcentrationsMohamed Sabry Medan, Taher Al-DaekThe objective of the present study was to treat ovarian inactivity in mares during the breeding season by using three protocols. Mares (n = 52) kept under field condition in the Green Mountain area, north of Libya were examined transrectally by ultrasound during the breeding season. They were assigned to have inactive ovaries which was confirmed by measuring serum estradiol … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 4 · 13 Dec 2014 · 7,562 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEstrous Synchronization Protocols in South African Merino EwesNhlakanipho Sam Zulu, Fhulufhelo Vincent Ramukhithi, Khoboso Christine LehloenyaThe South African Merino breed is the most important sheep breed in South Africa due to its superior wool quality. With an increasing wool demand from China and Europe, the need for wool production in South Africa has risen significantly. To meet this high demand, it is crucial to enhance the reproduction rate of the Merino sheep using assisted reproduction … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 1 · 29 Jan 2025 · 7,007 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCorpus Luteum Morphology and Function After Timed Artificial Insemination (TAI) in Nelore Heifers Supplemented with Sunflower Seed in their DietsGabriel Molinari de Mattos, Beatriz de Moraes Ropelli, Claudia Maria Bertan Membrive et al.The dietary Polyunsaturated Fatty Acids (PUFA) supplementation, before the Timed Artificial Insemination (TAI) protocol, may contribute to a reduction in embryonic mortality. In this context, we hypothesized that dietary supplementation with sunflower seed, before the TAI protocol, will promote an increase in the ovulatory Follicle Diameter (FD), with a consequent increase in the Corpus Luteum Diameter (CLD) and the plasma … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 3 · 12 Jul 2021 · 7,053 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTHYROID HORMONES (T3 AND T4) AS A MARKER OF UTERINE CANCER RISK FACTOR AFTER MENOPAUSEZena A.M. Al-JawadiDue to limited available information of the correlation between T3 and T4 on uterine cancer. This study focused on the following: Possibility of T3 and T4 as a marker of uterine cancer by studying the relationship between T3 and T4 and uterine cancer through a hormonal parameters. The study included collection of samples attending the Hospitals in Mosul, divided to … …American Journal of Applied Sciences, Vol. 11, Issue 5 · 15 Mar 2014 · 6,932 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOSTEOPOROSIS AS A NOVEL MARKER OF UTERINE CANCER RISK FACTORZena Abdul Monim Al-Jawadi, Zainab Mahfoth Al-noaymyDue to limited available information on the occurrence and treatment of uterine cancer, health institutions in major countries trend to study some factors and diseases that may relation or plays as predisposing factors of the occurrence of uterine cancer and the lack of previous studies on the impact of osteoporosis on the incidence of uterine cancer and the rapid spread … …American Journal of Applied Sciences, Vol. 11, Issue 1 · 7 Dec 2013 · 6,875 accessesView PDFCite
Research ArticleOpen accessIn the keywordsHistology and Histomorphology of Hormone Treated Surati Buffalo Udder TissueH. H. Mehta, A. K. Patel, K. N. Nandasana et al.In the global dairy scenario, India has the distinction of being the largest milk producing nation of the total milk production of 100.9 million tons in 2006-2007, about 55.6% has been contributed by buffalo. Buffalo is a more efficient milk producer than an indigenous cow. The present study was carried out to study the morphological changes associated with induced lactation … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 2 · 15 Apr 2013 · 7,199 accessesView PDFCite