نتایج جستجو برای: embryo sexing
تعداد نتایج: 68168 فیلتر نتایج به سال:
Many species that use or require early-successional forest are of conservation concern, including a number of songbirds that have experienced long-term population declines. In this study, our initial goal was to test whether herbicide application intensity was linked to offspring sex ratio in the White-crowned Sparrow (Zonotrichia leucophrys), a species that requires early-successional forest w...
Japanese quail (Coturnix coturnix japonica) reach sexual maturity earlier, breed rapidly and successfully, and cost less and require less space than other birds raised commercially. Given the value of this species for food production and experimental use, more studies are necessary to determine chromosomal regions and genes associated with gender and breed-differentiation. This study employed T...
Using optical-scanner (OPTOCOM) and radiogrammetric measurements on mandibular permanent teeth, root length alone affords sex-discriminatory effectiveness equal to or exceeding conventional crown diameters. Combinations of root length and crown dimensions yield up to 80% accuracy in sexing with as few as two teeth, and discriminatory effectiveness of 87% with mandibular teeth alone.
A laboratory procedure for sex identification of monomorphic birds was developed using modern cytological methods of detecting chromosome abnormalities in human amniotic fluid samples. A pin feather is taken from a pre-fledging bird for tissue culture and karyotype analysis. Through this method, the sex was identified and the karyotype described of the whooping crane (Grus americana) and the Mi...
We describe a technique to separate male and female pupae of sand flies. This has reduced the labour to separate flies after emergence and also allows the isolation of unmated adults for behavioural and physiological studies.
The success of artificial insemination must be supported by a balance nutrients for livestock. AI combined with sexing produces offspring according to wishes the breeder. This study aims determine increase in concentration on Artificial Insemination using frozen semen sexing. research was conducted at people's beef cattle farm, Sumber Pucung District, Malang Regency. limousine crosser used 30 c...
BACKGROUND & OBJECTIVES Most of autocidal control of malaria vectors relies on the rearing and release of large numbers of sterile male into a wild population and it would be crucial to separate the males from females before release. This could result in enormous economic benefits in the mass rearing and raise the efficiency of the field operations. The development of genetic sexing of mosquito...
In this paper, we revise the concept of neolocalism by showing how companies that sex up rural places update and add novel nuances to neolocalist marketing. As positive aspects drawn from tradition, stories history are at center neolocalism, aim highlight usually negatively perceived images may be turned into something positive, trendy, desirable, eventually sexy in marketing areas businesses. ...
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