|Statement||by Raymond Pearl and Frank M. Surface.|
|Series||Bulletin / Maine Agricultural Experiment Station -- no. 168., Papers from the biological laboratory -- no. 14., Paper (Maine Agricultural Experiment Station. Biological Laboratory) -- no. 14., Bulletin (Maine Agricultural Experiment Station) -- 168.|
|Contributions||Surface, Frank Macy, 1882-1965.|
|The Physical Object|
|Pagination||p. 106-164 :|
|Number of Pages||164|
Smith et al. () used 15 years of captive production data to assess the impacts of several factors on hatching success of fertile eggs. These factors included facility, age of the dam, inbreeding measures of both parents, year laid, sequence order of the egg (first laid, second laid, etc.), and the amount of time an egg was naturally incubated. They themselves record results showing that the temperature is not a critical factor under natural conditions. Hatching of the eggs occurred between °C., with a maximum range of °C. Although eggs hatched in total darkness, light caused a 60 per cent. increase in hatching. The optimum pH range was , the extremes being Cited by: Development of improved management techniques to overcome low egg fertility requires a better understanding of factors that influence egg fertility. We collected data for eggs laid at Patuxent. Abstract The physical characteristics of the egg play an important role in the processes of embryo development and successful hatching. The most influential egg parameters .
There are many factors that impact your fertility and many things to consider before you run to your doctor and wonder what’s wrong. If you’re going through fertility troubles, make sure to snag the free printable- 10 easy and fun ways to reconnect with your spouse. Factors affecting hatchability. 1. Hatchability Determining Factors Fertility Metabolism of chick embryo Temperature during incubation Humidity during incubation Incubation at high altitude Air requirement during incubation. 2. cont.. Egg selection & handling of hatching eggs Position of egg during incubation Nutrition Genetics Diseases Other factors affecting hatchability. The quality of the eggs and the sperm and therefore of the embryos are the main factors influencing success. The oocytes and sperm for the treatment cycle have been developing for 3 to 6 months and up to 90 days, respectively. reduced fertility; 12 Factors Affecting Fertility (Continued) Factors that can contribute to fertility problems include ; toxic agents, such as lead, toxic fumes and pesticides ; smoking and alcohol ; All these factors may cause ; in women reduced conceptions and increased risk of fetal wastage ; in men reduced sex drive and sperm count;
Fertility factors are mostly positive or negative correlations without certain causations. Factors generally associated with increased fertility include the intention to have children,  in advanced societies: very high gender equality,  religiosity,  inter-generational transmission of values,  marriage  and war,  maternal  and social  support, rural residence,  pro family government programs,  . management decisions. The technique requires the destruction of hatching eggs. Testing reject eggs is an alternative, but this tends to underestimate true fertility. The internal examination of fresh unincubated eggs will also allow the identification of any abnormalities. For example, mottling of the egg yolk is a disturbance of the. These include severe nutritional deficiencies, certain drugs and feed contamination with pesticides and mycotoxins. After eggs are laid, faulty handling and storage conditions and incorrect fumigation procedures have harmful effects on hatchability, while correct incubation temperature, humidity and ventilation rates during the setting and hatching stages are essential for optimum results. some other factors such as age and body weight of the hen, yolk weight and nutrient intake can influence egg size. Asuquo and Okon () studied the effects of age in lay and egg size on fertility and hatchability of eggs. The workers noticed that egg size within the intermediate range of 45–56 g would hatch better than small eggs.