Navigation Links
What comes first…the chicken, the egg, or the bad attitude?

Researchers at the University of Alberta have discovered that chickens raised for meat can choose whether or not they'll funnel the nutrients they eat towards themselves or their eggs.

That phenomenon of 'reproductive attitude' is a headache for producers who must figure out how to deal with less productive hens that "partition" nutrients needed for egg production into their own bodies. "They like to be a little bit more selfish with their nutrients, and continue growing," said Dr. Martin Zuidhof, an Alberta Agriculture researcher who is collaborating with the University of Alberta to solve the dilemma.

"Some of the broiler breeders (parents of chickens raised for meat) are happy to shift their nutrients from the growth of their bodies to egg production, but some of them don't do it very willingly. It is not a conscious thing the bird does, but it does express a tendency of that bird to either be generous or to be selfish with its nutrients."

Channelling food into body-building results in lower egg production, chick production and chick quality, said Dr. Frank Robinson, professor of Agricultural Food and Nutritional Science at the University of Alberta.

The University of Alberta study of 300 high-performance broiler breeder hens explores the relationship between the hen's growth and reproductive performance, to improve our understanding of how producers can better manage the birds' body weight during puberty, and also during the egg-laying period that comes later.

No other broiler breeders research program works as closely with individual birds. The research team has shown the importance of recognizing that large poultry populations are made up of a collection of individuals--each with their own way of balancing their growth and reproductive priorities. "Building definitions of 'reproductive attitudes' has been an eye-opening process that challenges basic assumptions about how these birds function," said Dr. Rob Renema, a resea
'"/>

Source:University of Alberta


Page: 1 2

Related biology news :

1. Growth in the sea comes down to a struggle for iron
2. Improved Outcomes Releases GeneLinker(TM) Gold and Platinum Version 4.6
3. BioMed Central welcomes the new National Institutes of Health public access policy
4. To sea or not to sea: When it comes to salmon sex, size sometimes doesnt matter
5. When it comes to cell entry, being average has its advantages
6. Predicting successful outcomes in living-donor liver transplants
7. Signature of chromosome instability predicts cancer outcomes
8. Gene expression becomes heterogeneous with age in humans and rats
9. For diseases, when it comes to sharing a home, only close relatives will do
10. Giant deep-sea tubeworms meal ticket comes in as a skin infection
11. When it comes to gene transcription, random pauses aren’t quite so random, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: What comes first chicken the egg the bad attitude

(Date:7/31/2014)... genes to the earliest common ancestor of butterflies ... an extensive "Tree of Lepidoptera" in the first ... , Among the study,s more surprising findings: Butterflies ... to large ones, which completely changes scientists, understanding ... that some insects once classified as moths are ...
(Date:7/31/2014)... IL Researchers who studied 100 twin pairs have identified ... normally on less than six hours of sleep per night. ... to the effects of sleep deprivation. , Results show that ... gene had an average nightly sleep duration of only ... the non-carrier twin, who slept for about six hours and ...
(Date:7/31/2014)... completed a 20-year study that looks at the ... times of the year. It finds that burning ... has no measurable negative consequences for the prairie ... The study was conducted by Gene Towne, research ... chief, and Joseph Craine, research assistant professor, both ...
Breaking Biology News(10 mins):UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3Study of twins discovers gene mutation linked to short sleep duration 2Study finds benefits to burning Flint Hills prairie in fall and winter 2Study finds benefits to burning Flint Hills prairie in fall and winter 3
... Women now dominate the field of veterinary medicine the ... repeat itself in the fields of medicine and law. ... factors that appear to be driving the change: the 1972 ... to graduate schools who may be deterred by a growing ...
... of the School of Policy Studies at Queen,s University, ... at an international think tank on "The Arctic and ... The Canada-UK Colloquium is organized annually by Queen,s ... to generate discussion and research about issues of immediate ...
... 2010 - An investigation conducted in the context of the ... Animals and Ecosystems, demonstrates for the first time that internal ... In the course of the Summer and Fall 2004, ... mothers who had given birth at the University Women,s Hospital ...
Cached Biology News:Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 2Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 3Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 4Exposure of humans to cosmetic UV filters is widespread 2Exposure of humans to cosmetic UV filters is widespread 3
(Date:7/31/2014)... 31, 2014 Nearly 20,000 medical professionals and ... Meeting & Clinical Lab Expo in Chicago ... breakthroughs in diagnostic research and technology that will advance ... As of Wednesday, July 30, more than 19,500 ... & Clinical Lab Expo, with more than 10,000 of ...
(Date:7/31/2014)... mapped the sound-processing part of the mouse brain in ... the trees in view. Their imaging technique allows zooming ... mice, and it enabled the team to watch brain ... The results, which represent a step toward better understanding ... 31 the journal Neuron . , In the ...
(Date:7/31/2014)... Rogne Bioscience, a privately-held biotechnology company based ... has acquired a licence to anti-inflammatory peptides from Isis ... anti-inflammatory activity of the peptides was discovered by Professor ... Sir William Dunn School of Pathology. ... million in seed financing, is developing a first-in-class, topical ...
(Date:7/31/2014)... Research and Markets has announced ... report to their offering. ... of the genetic material or genomes of an organism. ... the discovery and development of diagnostic and therapeutic solutions ... Genomics is supported by three major product segments: Instruments, ...
Breaking Biology Technology:Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3New mapping approach lets scientists zoom in and out as the brain processes sound 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 3Global Genomics Market 2014-2018: Key Vendors are F. Hoffmann-La Roche, Life Technologies, Qiagen and Illumina 2
... and Physical Sciences Research Council (EPSRC) has today announced ... The five-year fellowships, each worth around 1 million, ... Bhaskaran, Dr Ajoy Velayudhan and Dr Peter Foote. ... the manufacturing challenges of tomorrow we need to transfer ...
... president and CEO Michael J. Collins delivered the commencement ... Biochemistry Department, which was held on May 18, 2012. Collins ... has been a member of the Advisory Board for the ... (Logo: http://photos.prnewswire.com/prnh/20090622/CL35336LOGO-b ) "I ...
...  With approximately one in four adults suffering from ... funding and high case loads, the value of ... vital to effective mental health services. ILCs are ... people with physical disabilities, but across the country, ...
Cached Biology Technology:EPSRC announces first recipients of Fellowships in Manufacturing 2CEM President and CEO Delivers Commencement Address at the 2012 University of Texas at Austin Chemistry and Biochemistry Department Graduation 2Peers Underscored As An Effective Counseling Tool 2
... SuperScript™ III RNase H- ... an improved version of ... RT. Like SuperScript™ II ... DNA strand from single-stranded ...
... is the ideal CO2 incubator for cell ... or embryos at or near body temperature. ... everything needed to protect and grow your ... stable incubation conditions ensure optimum culture growth. ...
... antibody was derived from rabbit immunized with ... domains such as antibody fragments can be ... displayed on phage using phagemid-based systems (1), ... the Ph.D. libraries. Anti-M13 pIII Monoclonal Antibody ...
... Polynucleotide Kinase catalyzes the transfer ... to the 5-terminus of polynucleotides ... 5-hydroxyl group. The enzyme, purified ... be used to phosphorylate RNA, ...
Biology Products: