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:5/26/2016)... Pittsburgh, PA (PRWEB) , ... May 26, 2016 ... ... transplantation, and one that has a significant negative impact on long-term patient survival, ... to date. The results, published online this week in the Journal of Thoracic ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... solutions for drugs, biologics, consumer health and global clinical supply services, today announced ... to support the company’s continued investment and strategic growth plans in the Asia ...
(Date:5/26/2016)... ... May 26, 2016 , ... In an effort to provide hair restoration information to the ... users and those who do not use the app. Dr. Mohebi, the founder of Parsa ... Dr. Mohebi Live . , Dr. Mohebi says, “The positive response to the Snapchat ...
(Date:5/26/2016)... ... 26, 2016 , ... Eating Recovery Center, Washington ... a brand new child and adolescent residential treatment center on June 1. The ... more specialized eating disorder treatment and access to life-saving care. , To celebrate, ...
(Date:5/26/2016)... ... May 26, 2016 , ... Nike Yoga Camps at ... daily practices, arts & crafts, discussions, and games all geared towards enhancing your ... have combined backgrounds in kids’ yoga, collegiate sport yoga instruction, and global yoga ...
Breaking Medicine News(10 mins):
(Date:5/26/2016)... TARE (Transarterial Radio-embolization) Using ... and Overall Decreased Use of Hospital Resource ... specialist healthcare company, has today announced the publication ... of ISPOR (International Society for Pharmacoeconomics and Outcomes ... using yttrium-90 glass microspheres is associated with cost ...
(Date:5/26/2016)... , May 26, 2016 Since ... matured into an essential life science tool for conducting ... applications. BCC Research reveals in its new report that ... growth phase, one powered by a range of new ...      (Logo: http://photos.prnewswire.com/prnh/20140723/694805 ) , ...
(Date:5/25/2016)... May 25, 2016 According to ... Type (3D, 2D, 4D), by Therapeutic Area (Oncology, Cosmeceutical/Plastic ... User (Medical Device Manufacturers, Hospitals/ Clinics) - Forecast to ... Medical Animation Market for the forecast period of 2016 ... 301.3 Million by 2021 from USD 117.3 Million in ...
Breaking Medicine Technology: