Navigation Links
Does Weight of the Mother Determine the Sex of the Baby?

Want to have a baby boy? Tuck into the burgers, fries and ice cream. Want a girl? Then go on a diet and lose some weight//.

It works for cows, according to John Roche, a scientist at New Zealand's dairy research organisation Dexcel. "And we would expect what holds true for one mammal will hold true across the board," he said.

Dexcel and Ireland's Teagasc agricultural organisation studied 1,200 cows in an 18-year research project from 1986 to 2004.

They found that cows that gained weight before conceiving were more likely to give birth to bull calves. Those shedding kilos before conception had a better chance of producing heifers (females).

Roche told the Waikato Times, published in Hamilton at the heart of New Zealand dairying country, the research underlined the theory that humans had some control over the sex of their children.

"Many theories have been put forward," he said, citing weather patterns, phases of the moon, bathing rituals and the timing of intercourse.

"However, there has been little consistent scientific evidence till now."

Roche said it was not clear exactly why weight affected the sex of a cow's offspring.

Although the male determined the sex of the embryo at conception, the female had some control over whether to keep a male or a female one.

"It's an evolutionary adaptation," he said. "In the wild, males compete with each other for a partner and the bigger male has a distinct advantage.

"Female size is not as crucial. Therefore, any particular maternal characteristic that results in a larger offspring is likely to produce more males.

"If anything reduces the size of the offspring at birth, it is a disadvantage to the individual to be born male - therefore, there is a greater probability of it being female."

Roche said a cow losing weight before conception may have some mechanism that prompted it to reject a male embryo because it was not up to supporting the development of a bull calf.

(Source: IANS)
'"/>




Related medicine news :

1. Lose Weight With New Wonder Slimming FDA approved Prescription Drug
2. Weight-Loss Drinks Can Make You Gassy
3. Smoking Linked To Low Infant Birth Weight
4. Weight gain following smoking cessation not linked to Leptin
5. Helping Kids Attain a Healthy Weight
6. Weight-loss Products Dangerous
7. Weight and Blood Pressure
8. Low Birth Weight infants could have Problems in the Future
9. Excess Weight Can Affect Individuals as They Age
10. Low-Fat, High-Carb Diet Equally Effective In Weight Loss
11. Weight Gain Found To Increase The Risk Breast Cancer
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... health policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, ... work on several important health care topics including advance care planning, healthcare costs ...
(Date:6/25/2016)... Lewisville, TX (PRWEB) , ... June 25, 2016 , ... ... in the United States, named Dr. Sesan Ogunleye, as the Medical Director of its ... be the facility Medical Director of our new Mesquite location,” said Dr. James M. ...
(Date:6/25/2016)... Canada (PRWEB) , ... June 25, 2016 , ... Conventional ... pursuit of success. In terms of the latter, setting the bar too high can ... risk more than just slow progress toward their goal. , Research from ...
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, ... at his family verbally and physically. , “When something upset him, he couldn’t control his ... it. He would throw rocks at my other children and say he was going to ...
(Date:6/24/2016)... ... 2016 , ... Comfort Keepers® of San Diego, CA is excited to announce ... program to drive cancer patients to and from their cancer treatments. Comfort Keepers ... of life and ongoing independence. Getting to and from medical treatments is one ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 Research ... World Market for Companion Diagnostic Tests" report to their ... Market for Companion Diagnostics The World Market ... and personalized medicine diagnostics. Market analysis in the report includes ... Test Market (In Vitro Diagnostic Kits) by Region (N. America, ...
(Date:6/24/2016)... , Belgium , June ... MKT: VNRX), today announced the appointment of Dr. ... of Directors as a Non-Executive Director, effective June ... Company,s Audit, Compensation and Nominations and Governance Committees.  ... Dr. Futcher will provide independent expertise and strategic ...
(Date:6/23/2016)... 23, 2016 Research and Markets has ... - Forecast to 2022" report to their offering. ... for the patients with kidney failure, it replaces the function ... the patient,s blood and thus the treatment helps to keep ... in balance. Increasing number of ESRD patients ...
Breaking Medicine Technology: