Navigation Links
Diet prior to pregnancy determines sheep's gender
Date:6/8/2008

Maternal diet influences the chances of having male or female offspring. Research published today in BioMed Central's open access journal Reproductive Biology and Endocrinology has demonstrated that ewes fed a diet enriched with polyunsaturated fats for one month prior to conception have a significantly higher chance of giving birth to male offspring.

This study was carried out by a team of researchers from the Division of Animal Sciences at the University of Missouri and led by R Michael Roberts. Roberts explains how diet at the time of conception is the most important factor when it comes to influencing the sex of the offspring "Our study ruled out body condition, ewe weight, previous births, time of breeding, and likely dominance as reasons for the gender skewing. Rather, it was the composition of the diet consumed in the time period around conception that was responsible for this sex-ratio effect".

Polyunsaturated fats are essential nutrients. It is believed that the dietary ratio between omega-3 and omega-6 fats has important biological effects, especially in terms of inflammation, immunity and central nervous system signalling. The omega-6 fats used in this study were protected from digestion by naturally occurring rumen bacteria to ensure that they would be absorbed through the intestines of the sheep.

In animal social groups where a small number of dominant males mate with a large number of females, it has been theorised that having male offspring would be of genetic advantage to a very healthy, well fed female, while females consuming a poorer diet would have greater genetic success by giving birth to female offspring. According to Roberts "Although this theory is attractive, former observations have often been contradictory, leading some to dismiss its relevance. This is the first experimental study in controlled conditions showing that supplementing maternal diet, in this case by increasing omega-6 polyunsaturated fatty aci
'/>"/>

Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-020-763-14804
BioMed Central
Source:Eurekalert

Page: 1 2

Related biology news :

1. Argonne-SRNL agreement supports critical DOE, national priorities
2. Scientists endure Arctic for last campaign prior to CryoSat-2 launch
3. New research offers prioritization plan for reducing nutrient pollution in feeder streams
4. A new analysis method allows to find out the sex of the baby from the second month of pregnancy
5. A new gene trigger for pregnancy disorder identified
6. Pregnancy is possible after cancer treatment
7. Exercise during pregnancy leads to a healthier heart in moms- and babies-to-be
8. Herpes virus link to complications in pregnancy
9. Life on Mars pregnancy test successfully launched
10. Low vitamin D during pregnancy linked to pre-eclampsia
11. Drug could improve pregnancy outcomes in wider range of women with insulin resistance
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/1/2015)... OXFORD, Conn. , Apr. 1, 2015  NXT-ID, ... a biometric authentication company focused on the growing mobile ... number of Wocket smart wallets is underway to early ... early access group includes usage at retail outlets including ... CVS Pharmacy. Users report Wocket was accepted at all ...
(Date:3/26/2015)... The Granite Club, ... club, today announced it has implemented a state-of-the-art access ... for members and staff, while restricting access to authorized ... selected FST,s IMID Access system because it has the ... and staff, in addition to unparalleled security," said ...
(Date:3/23/2015)... -- SoundView Technology Group issues a new research update following ... smart wallet. SoundView was one of the selected user groups to ... Wocket in multiple scenarios and outlets. Soundview ... making both debit and credit card payments.  ... company meets their plans in 2015, it would push our ...
Breaking Biology News(10 mins):NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4
... weapon in the arsenal against cancer: Nanoparticles that identify, ... cells alone. Led by Carl Batt, the Liberty ... nanoparticles shaped something like a dumbbell made ... They then attached antibodies, which target a molecule found ...
... of God and the nature of religion, two distinguished ... in evolutionary biology with a focus on brain science, ... Tiger and pioneering neuroscientist Michael McGuire elucidate perennial questions ... arise? What is its source? And why does every ...
... breakthrough treatments for the most common cancers could soon come ... At the ESMO Conference on Sarcoma and GIST, to ... 2010, researchers and some of the world,s leading experts will ... found in muscle, blood vessels, deep skin tissues, nerves and ...
Cached Biology News:Like little golden assassins, 'smart' nanoparticles identify, target and kill cancer cells 2Which came first: Religion or the brain? 2Spotlight on rare tumors in hunt for new cancer treatments 2
(Date:5/4/2015)... 4, 2015   St. Jude Children,s Research ... computer tool for finding genetic alterations that play ... difficult to identify with whole-genome sequencing. The findings ... Methods . The tool is an ... by Regression Tree in Next Generation Sequencing. ...
(Date:5/4/2015)... TORONTO , May 4, 2015 /PRNewswire/ - ... pleased to announce the appointment of Dr. Roger ... extensive experience guiding biotech companies in matters including ... Fluorinov,s leadership team and adds significant regulatory expertise ... Dr. Garceau brings 30 years of pharmaceutical ...
(Date:5/4/2015)... May 04, 2015 Achieved primarily through ... slides that boast 10 to 100x better detail than ... capabilities of all existing light microscopy methods, it needed ... were chosen as the frame of reference because it ... , The goal from the earliest discovery days of ...
(Date:5/4/2015)... WASHINGTON , May 4, 2015   ... announced updated interim data from Tocagen,s ongoing investigational ... Satellite Symposium of the American Association of Neurological ... Tumors, held May 1-2, 2015, in ... the company held a meeting with FDA and ...
Breaking Biology Technology:Scientists dramatically improve method for finding common genetic alterations in tumors 2Scientists dramatically improve method for finding common genetic alterations in tumors 3Scientists dramatically improve method for finding common genetic alterations in tumors 4Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 2Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 4Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 5
... Women with below-the-knee ... after endovascular treatment, 88 percent of women avoided amputation compared to 83 percent of ... ... of lower-leg amputation fare even better than men when they have minimally invasive treatment to ...
... ... partnership among 2 leading service providers to the world-wide biopharmaceutical industry. Quintiles, ... for electronic Patient Reported Outcomes (ePRO) solutions and services. , ... Research Triangle Park, N.C., ...
... the divas of the nanoworld. In possession of alluring ... carbon-based cousins. On the plus side, they can ... says Yoke Khin Yap, an associate professor of physics ... charcoal in a barbecue at half of those temperatures," ...
Cached Biology Technology:Women More Likely Than Men to Avoid Amputation After Minimally Invasive Therapy for Blocked Leg Arteries 2Women More Likely Than Men to Avoid Amputation After Minimally Invasive Therapy for Blocked Leg Arteries 3Quintiles Selects invivodata as Primary Partner for ePRO Solutions; Collaboration to Enhance Value, Effectiveness and Speed in Drug Development 2Quintiles Selects invivodata as Primary Partner for ePRO Solutions; Collaboration to Enhance Value, Effectiveness and Speed in Drug Development 3Harnessing the divas of the nanoworld 2
hypertension-related calcium-regulated gene, mRNA...
Human SOST Affinity Purified Polyclonal Ab...
(3-[125I]iodotyrosyl26)Galanin, porcine, 370 kBq, 10 uCi. Category: IODINE LIGANDS....
(3-[125I]iodotyrosyl26)Galanin (porcine), 925 kBq, 25 uCi. Category: IODINE LIGANDS....
Biology Products: