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:2/23/2017)... ... February 23, 2017 , ... Top cosmetic and periodontal ... program today with a new Indiegogo campaign . Individuals are now able ... in the Los Angeles area, either as a participating patient or through an Indiegogo ...
(Date:2/23/2017)... ... February 23, 2017 , ... HealthPostures, the desk for ... expert sit stand solutions representative to the Minneapolis Home and Garden Show which is ... event that is garnering national attention is the Minneapolis Convention Center. , From ...
(Date:2/23/2017)... ... February 23, 2017 , ... Carlos Gutierrez ... has also continued to spiritually evolve, which is the purpose of everyone in this ... Spiritual Truths ” (published by Balboa Press) attempts to guide readers to expand one’s ...
(Date:2/22/2017)... , ... February 22, 2017 , ... ... athletics. It’s enough to overwork even the sharpest brain. , Power On, a ... healthy activity without over clocking the brain. Each capsule contains Cognizin® Citicoline, a ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... medicine in recent years. The technology is so cutting edge, in fact, the ... protocol for stem cell procedures. However, successful patient outcomes in certain clinical stem ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... DUBLIN , Feb 23, 2017 Research ... Prosthetic Devices Market Analysis & Trends - Industry Forecast to 2025" ... ... to grow at a CAGR of around 9.2% over the next ... industry report analyzes the market estimates and forecasts for all the ...
(Date:2/23/2017)... 23, 2017 MabVax Therapeutics Holdings, ... development company, announces that it has received notice ... authorizing the initiation a Phase I clinical trial ... cancer. MVT-1075 ( 177 Lu-CHX-A?-DTPA-HuMab5B1) is the Company,s ... to initiate the phase I clinical trial in ...
(Date:2/23/2017)... , Feb. 22, 2017 Orthopedic ... implant demand, as aging demographic patterns lead to ... Implants for sports- and exercise-related injuries, chronic back ... will lead sales gains. The future of medical ... addresses the following questions and more: - ...
Breaking Medicine Technology: