نتایج جستجو برای: time reproduction

تعداد نتایج: 1947344  

Journal: :iranian journal of veterinary research 2014
a. yousefi jourdehi m. sudagar m. bahmani s. a. hosseini a. a. dehghani

in this study, 54 five-year-old farmed female beluga at stage ii of sexual maturation were treated with 0 (control), 0.2, 0.4, 0.8 and 1.6 g of dietary soy equol (eq) and genistein (ge) per each kilogram (kg) of diet during a year. blood samples were collected and ovarian biopsy was performed quarterly. results showed that 64.4% of the huso huso sexually matured at eq 0.4 g/kg and reached stage...

Journal: :iranian journal of applied animal science 2012
a.k. talukder m. shamsuddin

we reportedhere data from a productivity veterinary service that was participatory planned and delivered on farms at the kanihari union belongs to mymensingh district of bangladesh. we used a set of five forms and a breeding calendar on farm visit once in a month to guide service delivery and acquisition of data and to keep the records on general cattle health, reproduction, udder health and fe...

Journal: :caspian journal of enviromental sciences 0

the reproductive biology of the iranian cichlid, iranocichla hormuzensis coad, 1988, was investigated for 13 consecutive months in lower mehran river, from august 2008 through august 2009. four hundred and eighty six individuals (252 males and 234 females) were captured using a seine net (5 mm mesh size). the observed sex ratio was 1m: 0.93f (χ², df = 1, p = 0.414). mean ± sd of total length (t...

Journal: :journal of reproduction and infertility 0

background: the initial step in the diagnostic investigation of male infertility has been traditionally based on the conventional seminal profile. however, there are significant limitations regarding its ability to determine the underlying mechanisms that cause the disorder. sperm dna fragmentation has emerged as a potential causative factor of reproductive failure and its assessment has been s...

Journal: :international journal of reproductive biomedicine 0
panas tumkiratiwong ravicha ploypattarapinyo urai pongchairerk wachiryah thong-asa

background: momordica charantia (m. charantia) seed has been supposed to have an antifertility property but mechanisms underlying the infertility effect have not been investigated. objective: we investigated the antifertility effect of m. charantia ethanol seed extracts on reproductive toxicology and seminal and plasma testosterone in male wistar rats. materials and methods: the control group (...

2012
Yusuke Ikeda Shiro Ise

The sound reproduction system based on the boundary surface control principle makes possible a physically close sound reproduction and has a high performance of spatial reproduction such as sound localization and sound distance. Based on these features, we have researched and developed a 3-D sound field sharing system in order to make possible a deeper level of telecommunication through music. ...

2012
Thomas Obadia Romana Haneef Pierre-Yves Boëlle

BACKGROUND Several generic methods have been proposed to estimate transmission parameters during an outbreak, especially the reproduction number. However, as of today, no dedicated software exists that implements these methods and allow comparisons. RESULTS A review of generic methods used to estimate transmissibility parameters during outbreaks was carried out. Most methods used the epidemic...

Journal: :Journal of the Royal Society, Interface 2010
Hiroshi Nishiura Gerardo Chowell Hans Heesterbeek Jacco Wallinga

The reporting interval of infectious diseases is often determined as a time unit in the calendar regardless of the epidemiological characteristics of the disease. No guidelines have been proposed to choose the reporting interval of infectious diseases. The present study aims at translating coarsely reported epidemic data into the reproduction number and clarifying the ideal reporting interval t...

2014
Jing-an Cui Xiang Ping Yan

A transmission model of malaria with two delays is formulated. We calculate the basic reproduction number R 0 for the model. It is shown that the basic reproduction number is a decreasing function of two time delays. The existence of the equilibria is studied. Our results suggest that the model undergoes a backward bifurcation, which implies that bringing the basic reproduction number below 1 i...

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