New study found a way to further enhance the vitamin D content of eggs by exposing chickens to UV light. The findings of the study are published in the journal Poultry Science.
Many people suffer from vitamin D deficiency. This can result in brittle bones and an increased risk of respiratory diseases. Chicken eggs are a natural source of vitamin D and one way to, at least partially, compensate for this deficiency.
Sunlight: An Important Source of Vitamin D
Vitamin D is an essential vitamin necessary for the development of bones. Sunlight helps the body to produce vitamin D. Vitamin D deficiency results in rickets in children and osteomalacia in adults.
Advertisement
‘Exposing hens to UV rays may be a practical strategy to increase the vitamin D content in eggs.’
Read More..
Tweet it Now
Read More..
Vitamin D assumes many important functions in the human body. During the summer months, people can cover about 90 percent of their daily vitamin D requirements themselves since it forms naturally in the skin through exposure to sunlight which contains special bands of light in the UV spectrum. The remainder is ideally consumed through food, such as oily fish or chicken eggs.
"However, lifestyle choices prevent many people from getting enough vitamin D. The problem increases even more in the winter months when there is a lack of sunshine," explains nutritionist Dr. Julia Kühn from MLU.
![Vitamin D Deficiency During Pregnancy May Up Childhood Obesity]( "Vitamin D Deficiency During Pregnancy May Up Childhood Obesity")
Low vitamin D levels during first trimester of pregnancy may up childhood obesity. Therefore, sufficient amounts of vitamin D in required during early pregnancy.
The researchers were, therefore, looking for a way to increase the amount of vitamin D in food, in this case, in eggs.
"The idea was to stimulate the natural vitamin D production of chickens. Using UV lamps in the henhouses would increase the vitamin D content of the eggs," says Kühn.
In earlier studies, the researchers were able to prove the fundamental success of their approach when they illuminated the legs of the chickens with UV light.
"However, the experiments were always conducted under ideal conditions. There was only one chicken per lamp. In chicken farms, there is a much higher stocking density than here. In other words: a lot more animals," Kühn continues.
The new study aimed to test the practical feasibility of the method and therefore, was conducted on two chicken farms. Comparisons were made between two different chicken breeds, assorted lamps, and different durations of light exposure per day.
The researchers not only continuously analyzed the vitamin D content of the newly laid eggs during the trial period, but they also investigated the impact the additional light had on the animals. "Humans cannot see UV light, but chickens can. Therefore, light regimes are a critical aspect in chicken husbandry because of light influences behavior and laying activity," explains Professor Eberhard von Borell, an expert in animal husbandry at MLU. His working group analyzed the behavior of the animals using video recordings. The researchers also inspected the chickens' plumage for injuries by other members to assess their potential for activity and aggression.
The research team's idea worked: After only three weeks of UV light exposure for six hours per day, the vitamin D content of the eggs increased three to four-fold. This value did not raise any further in the following weeks. Also, the additional UV light did not cause any obvious problems for the hens. They neither avoided the area around the lamps, nor did they act any differently. As a result, the researchers conclude that their method also works under practical conditions and that this could represent an important step towards supplying the population with vitamin D.
Source: Eurekalert
Vitamin D Deficiency During Pregnancy May Up Childhood Obesity
Low vitamin D levels during first trimester of pregnancy may up childhood obesity. Therefore, sufficient amounts of vitamin D in required during early pregnancy.
Advertisement
The researchers were, therefore, looking for a way to increase the amount of vitamin D in food, in this case, in eggs.
"The idea was to stimulate the natural vitamin D production of chickens. Using UV lamps in the henhouses would increase the vitamin D content of the eggs," says Kühn.
In earlier studies, the researchers were able to prove the fundamental success of their approach when they illuminated the legs of the chickens with UV light.
"However, the experiments were always conducted under ideal conditions. There was only one chicken per lamp. In chicken farms, there is a much higher stocking density than here. In other words: a lot more animals," Kühn continues.
The new study aimed to test the practical feasibility of the method and therefore, was conducted on two chicken farms. Comparisons were made between two different chicken breeds, assorted lamps, and different durations of light exposure per day.
The researchers not only continuously analyzed the vitamin D content of the newly laid eggs during the trial period, but they also investigated the impact the additional light had on the animals. "Humans cannot see UV light, but chickens can. Therefore, light regimes are a critical aspect in chicken husbandry because of light influences behavior and laying activity," explains Professor Eberhard von Borell, an expert in animal husbandry at MLU. His working group analyzed the behavior of the animals using video recordings. The researchers also inspected the chickens' plumage for injuries by other members to assess their potential for activity and aggression.
The research team's idea worked: After only three weeks of UV light exposure for six hours per day, the vitamin D content of the eggs increased three to four-fold. This value did not raise any further in the following weeks. Also, the additional UV light did not cause any obvious problems for the hens. They neither avoided the area around the lamps, nor did they act any differently. As a result, the researchers conclude that their method also works under practical conditions and that this could represent an important step towards supplying the population with vitamin D.
Source: Eurekalert
Can Excessive Use of Sunscreen Cause Vitamin D Deficiency?
Widespread vitamin D deficiency could be due to overuse of sunscreen, restricting exposure to the sun and preventing synthesis of vitamin D.
Advertisement
 Autism Linked to Vitamin D Deficiency During PregnancyLink between vitamin D deficiency in pregnancy and increased incidence of autism has been identified. | Advertisement
|
Advertisement
Recommended Readings
Latest Research News
Trouble with sleep and the body's clock may increase your risk for Parkinson's, as per a new study.
New study uncovers a link between nocturnal hot flashes and Alzheimer's risk in menopausal women, suggesting a potential biomarker.
Our discovery revealed that a minority of individuals attributed their chronic pain to their brain's involvement.
Relative Energy Deficiency in Sport syndrome is overlooked by athletes and can be worsened by 'sports culture' due to its perceived short-term performance benefits.
New study sheds light on the intrinsic, yet often overlooked, role of sleep preparation as a hardwired survival strategy.
