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:

(Date:10/13/2017)... ... October 13, 2017 , ... ... Pharmacy (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, ... guideline updates for the primary prevention of cardiovascular diseases during the 15th ...
(Date:10/13/2017)... Calif. (PRWEB) , ... October 13, 2017 , ... Many ... dementia. However, many long-term care insurance companies have a waiver for care if the ... 90-day elimination period, when the family pays for care, is often waived, so the ...
(Date:10/13/2017)... ... ... Global Healthcare Management’s 4th Annual Kids Fun Run brought out many kids ... sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at getting kids excited ... all ages; it is a non-competitive, non-timed event, which is all about having fun ...
(Date:10/13/2017)... Fairfax, VA (PRWEB) , ... October 13, 2017 ... ... provider of DevOps and Agile Software Development, has been awarded a contract by ... (EATS) Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance (FHC), ... will showcase a range of technology and learning solutions at the 68th Annual ... Expo to be held October 14–18, 2017 at the Mandalay Bay Resort in ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Oct. 2, 2017 The Rebound mobile app is ... to reverse the tide of prescription drug addiction. The app ... medicine intake and stepping down their dosage in a safe, ... in December 2017; the first 100,000 people to sign up ... ...
(Date:9/27/2017)... MIAMI , Sept. 27, 2017  Commended for their ... recent notable awards. Ranked as number one in the South ... ninth time in Inc. 5000 yearly list, the national specialty ... CEO, Armando Bardisa will soon be honored by ... Set to receive his award ...
(Date:9/25/2017)... , Sept. 25, 2017  EpiVax, Inc., a ... design, and immune-engineering today announced the launch of ... development of personalized therapeutic cancer vaccines. EpiVax has ... exclusive access to enabling technologies to the new ... will lead EpiVax Oncology as Chief Executive Officer. ...
Breaking Medicine Technology: