نتایج جستجو برای: incubation temperature

تعداد نتایج: 496136  

Journal: :archives of razi institute 0
behrooz raie jadidi department of chemical engineering, tabriz branch, islamic azad university, tabriz,iran hamid erfan-niya department of chemical and petroleum engineering, university of tabriz, tabriz, iran ali ameghi department of research and development, razi vaccine and serum research institute northwest branch, agricultural research, education and extension organization,marand, iran

avian influenza is one of the most important diseases in avian industry, which also threats human population. thus, vaccination is necessary for controlling this viral disease. in this study, killed vaccine of avian influenza subtype h9n2 and formalin solution (for virus inactivation) were used. it is necessary to study the effect of different factors such as formalin concentration, as well as ...

2018
Gary R Hepp Robert A Kennamer

Incubation starts during egg laying for many bird species and causes developmental asynchrony within clutches. Faster development of late-laid eggs can help reduce developmental differences and synchronize hatching, which is important for precocial species whose young must leave the nest soon after hatching. In this study, we examined the effect of egg laying sequence on length of the incubatio...

Journal: :Biology of reproduction 1999
T Rhen E Willingham J T Sakata D Crews

Incubation temperature determines gonadal sex in the red-eared slider turtle, Trachemys scripta. However, little is known about the long-term effects of incubation temperature on traits other than gonadal sex in this species. To investigate the hypothesis that incubation temperature (independent of gonadal sex) influences sex steroid levels after hatching, we incubated eggs of the red-eared sli...

Journal: :Physiological and biochemical zoology : PBZ 2005
Arthur Georges Kerry Beggs Jeanne E Young J Sean Doody

An increase in temperature, within bounds, will accelerate development of reptile embryos, and morphogenesis can be normal over a range of temperatures despite those varying rates of development. Less well understood is the form of the relationship that best describes variation in developmental rate with temperature. In this article, we apply a linear degree.hour model, an empirical curvilinear...

2015
Wei Dang Wen Zhang Wei-Guo Du

Identifying how developmental temperature affects the immune system is critical for understanding how ectothermic animals defend against pathogens and their fitness in the changing world. However, reptiles have received little attention regarding this issue. We incubated eggs at three ecologically relevant temperatures to determine how incubation temperature affects the immune function of hatch...

2011
Author Brett A. DeGregorio Amanda Southwood Williard BRETT A. DEGREGORIO AMANDA SOUTHWOOD WILLIARD

– Miniature temperature loggers were used to better understand the incubation temperatures, patterns in metabolic heating, and potential implications for sex determination of relocated and in situ loggerhead sea turtle clutches near the northern extent of their nesting range. All sea turtles display temperature-dependent sex determination, with cooler nests producing males and warmer nests prod...

2010
G. I. Ågren

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Biogeosciences Discussions This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Effects of temperature history on litter d...

M. Alizadeh M. Rezazad S. Hamdipour,

In this research the 2 sub verities of Rhizopus oligosporus was used for production of antioxidative bioactive compounds from whey protein concentrate (WPC) and apple pomace. Total phenolic compounds, free radical scavenging ability by DPPH and antioxidant protection factort were evaluated in 48 determined treatments. Effect of Incubation temperature in three levels 23, 27, 31°C, incub...

2010
Barbara Tzschentke

Incubation climate can significantly influence hatchability, chick quality, and later performance in poultry. One of the most important factors is the incubation temperature (Decuypere and Michels, 1992). Changes of only 1°C from the optimum have a major impact, for instance, on hatching results in turkeys (French, 1994), but the strength of this influence depends on the time frame used and the...

2013
Anurag Singh H. K. Sharma Sanjay Kumar Ashutosh Upadhyay K. P. Mishra

The effect of incubation time, incubation temperature, and crude enzyme concentration was observed on the yield, viscosity, and clarity of the juice obtained from bael fruit pulp. The recommended enzymatic treatment conditions from the study were incubation time 475 min, incubation temperature 45°C, and crude enzyme concentration 0.20 mL/25 g bael fruit pulp. The recovery, viscosity, and clarit...

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