Impact of egg warming on the embryo, hatchling and broiler performance in stored and fresh eggs.
The objective of this trial was to determine the effect of rate of egg warm-up prior to incubation upon embryo growth.

Energy metabolism and grow out performance for broiler from fresh or stored eggs. A total of 1080eggs were obtained from a young flock of hen when 33 weeks of age, stored for 2 week and again at 35 week of age and stored for 3 days.

Eggs from 2 storage periods of either 2 week (stored) or 3 day )fresh) were equaly divided and palced in 2 differente incubator with 2 different warm-up profiles, (fast and slow) fast profile eggs were warm-up to temperature over a period of 18 hours, after the egg attained incubation temperature, the profiles were kept the same.

Chick were grown out and weight at 3 week and at 6 weeks, heart rate were determined at 13 days of incubaton. Chicks were examined at hatch, and liver and heart samples were taken form 10 chick per treatment to determine relative organ weight and glycogen contents, body weight at hatch as a percentage of initial egg weight demonstrated an interaction of storage treatment and rate of warm-up, this diffrences appears to be the result of the significant differences in the low ammount of residual yolk at hatch in the slow fesh chick.

Relative heart weight was significantly greater for fresh versus stored eggs and the slow versus the fast warm-up.
And the grams of glycogen per liver were reversed, body weight at 6 weeks were significantly greater in the females if they come from eggs which were stored and increased slowly compared to the other treatment.

Male broiler were signifantly higher when warmed-up fast compared to slowly.

READ MORE - Poultry news - Impact of egg warming on the embryo

About 20 years ago, when I was barely out of college and a struggling journalist, I developed a horrible sore throat. I didn't have a regular doctor, so I had my throat examined in a small clinic in a strip mall. The doctor figured I had strep throat, but the test came back negative. Still, she prescribed antibiotics and sent me on my way. The next morning, I woke up with little red dots all over my body, so I went back to the clinic. The same doc looked at me, said I had hives, harrumpfed that I was allergic to penicillin and gave me a prescription for a different antibiotic. The sore throat eventually went away, but every time since that I've gone to a doctor or dentist and I’ve listed penicillin as one of my allergies. Still, I always wondered if I really had an allergy; I took penicillin frequently during my childhood and never had an allergic reaction.

I came across a recent study published in the Annals of Emergency Medicine that said 80 to 90 percent of people who report being allergic to penicillin are really not.

This new study sought to determine how many patients who came into an Emergency Department (ED) and said they are allergic to penicillin really were allergic. Using two back-to-back skin tests, doctors in the ED at the University of Cincinnati tested 150 patients who reported having a penicillin allergy. 91 percent of these patients tested negative for the allergy.

For Dr. Joseph Moellman, an associate professor at the University of Cincinnati Department of Emergency Medicine, who conducted this study, finding out that taking the additional 30 minutes to conduct these two tests has several important implications. "We see a lot of patients with pneumonia, with sepsis, for which penicillin is a great drug...It's also a lot cheaper." Moellman says the average cost saving is $71. So if, for example, a pneumonia patient is in the hospital for a week, and possibly needs antibiotics every six hours – significant savings can add up very quickly. Plus, using penicillin where it's known to work allows doctors to save the few newer antibiotics we have for illnesses that have become resistant to penicillin.

"This is good information," says Dr. Clifford Bassett, an allergy expert and spokesperson for the American Academy for Allergy, Asthma and Immunology. "The fact that the test is fast and inexpensive is helpful." But he did point out that there has been a shortage of proper testing agents for penicillin. Once these testing agents become more widely available again, Bassett says that this test could be done in other settings too, not just in an emergency room, but also in a regular doctor's practice.

He adds that some previous research suggests that some people who genuinely were allergic to penicillin could lose their allergy if they don't come in contact with this drug for 10 years or more.

Of course neither doctor could explain whether I really am allergic to penicillin. But Moellman explained that sometimes a virus itself can cause hives, and Bassett told me that usually it takes more than 24 hours for a penicillin allergy to become evident. I, for one, plan to get tested to determine whether I truly am allergic to penicillin.

Have you been told you're allergic to penicillin? Would you consider getting tested?

Editor's Note: Medical news is a popular but sensitive subject rooted in science. We receive many comments on this blog each day; not all are posted. Our hope is that much will be learned from the sharing of useful information and personal experiences based on the medical and health topics of the blog. We encourage you to focus your comments on those medical and health topics and we appreciate your input. Thank you for your participation.

READ MORE - Allergic to penicillin

NEW ORLEANS, Louisiana -- Post-traumatic stress disorder may be a condition of the mind, but research has implicated it in the ills of the body. Now, a new study suggests it may be associated with death after surgery.
An estimated 6.8 percent of the adult American population has had PTSD at some point.

An estimated 6.8 percent of the adult American population has had PTSD at some point.

The study shows that veterans with PTSD were more likely to die within a year after surgery than those without the disease, regardless of how many years had passed since their service. The study was presented at the annual meeting of the American Society of Anesthesiologists this week.

This is the first research to examine the mortality of patients with PTSD after surgery, said study author Dr. Marek Brzezinski, anesthesiologist and assistant professor at the University of California, San Francisco.

"If you consider that perhaps more and more patients are coming, and they're going to be with us for years to come, this is obviously a huge field that needs to be addressed," he said.

People develop PTSD, an anxiety disorder, in response to a traumatic event. Symptoms, which include intrusive memories, social withdrawal and increased anxiety or emotional arousal, typically begin within three months of a traumatic event, according to the Mayo Clinic.

The condition has also been correlated with increased risk for alcohol and drug abuse, smoking, obesity, diabetes, heart disease, hypertension, elevated lipid levels and other psychiatric disorders, Brzezinski said.

About 6.8 percent of adult Americans have had PTSD at some point in their lives, according to a 2005 survey cited by the U.S. Department of Veterans Affairs. Among veterans of the Vietnam War, 30.9 percent of men and 26.9 percent of women have had PTSD, according to the National Vietnam Veterans Readjustment Survey, conducted between November 1986 and February 1988.
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Researchers focused on male patients treated between 1998 and 2008 at the VA San Francisco Medical Center. These patients had their first elective noncardiac major surgery requiring hospital admission during that time. The authors relied on information that was already recorded and did not interview any patients.

Of the 1,792 male veterans, 129 -- or 7.2 percent -- had a diagnosis of PTSD on the day of surgery, and the rest did not.

One year after surgery, 8.5 percent of the patients with PTSD had died, compared with 6.8 percent of patients who did not have the psychiatric disorder, representing a 25 percent increased risk for those with PTSD. The researchers did not find substantial differences in mortality among the kinds of surgeries that patients had.

Researchers also noted that the patients with PTSD tended to be younger; the average age for them at the time of surgery was 59.2 years old, while the average non-PTSD veteran was 66.3.

The study was retrospective and was not designed to see whether it was the PTSD, the surgery, or some other underlying factor that most influenced the patients' deaths, Brzezinski said.

But a follow-up study that he and colleagues are working on will look at the issue prospectively, following the outcomes of patients with and without PTSD as they go through surgeries. Participants will be tested for PTSD before and after surgery, and researchers will chart any complications that arise.

These preliminary findings make sense given that PTSD has been associated with poor eating habits, high blood pressure, heart disease, smoking and significant substance abuse histories, said Dr. Israel Liberzon, professor of psychiatry at the University of Michigan in Ann Arbor.
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MayoClinic.com: Post-traumatic stress disorder

Another possibility is that the condition itself, which involves the major stress systems of the body, leads to a worse recovery from major surgery, he said.

Liberzon and colleagues are analyzing data of patients to see whether people who undergo vascular surgery are more likely to develop PTSD after. The surgery itself is less traumatizing than the overall experience of fearing death and undergoing associated procedures, he said.

For example, aortic surgery requires both physical stress and pain. There is also a threat of death, as patients have this surgery to avoid aneurysms. "All of those components can contribute to the development of PTSD, rather than the simple fact of going into surgery," he said.

Unlike the normal stress of everyday life, people with PTSD experience lifelong stress that changes how they perceive everything, Brzezinski said.

"One patient told me, for example, he feels like being in a cage with a tiger, and it's permanent stress," he said. "This obviously changes how patients perceive everything, how their body works."

Older veterans, especially those from the 1960s and '70s, tend to have more long-lasting PTSD than younger veterans, Liberzon said. While both age-groups have traumatic memories and sleep difficulties, the older veterans tend to have more anger outbursts, thoughts and dreams about the trauma, he said.

It is well established that stress is associated with poor outcomes of surgery, Brzezinski said. Patients with PTSD may also have elevated stress hormones, which could increase their chances of other conditions such as heart disease and diabetes, he said.

PTSD is also associated with poor compliance, meaning patients may be less likely to take their required medications or see a doctor when they need one, he said.

It's important for physicians to treat PTSD not only as a mental condition, but also as an independent risk factor for other health problems, Brzezinski said.

READ MORE - Post-traumatic stress disorder may be a condition of the mind