Diet selection in sheep: the role of the rumen environment in the selection of a diet from two feeds that differ in their energy density

The British Journal of Nutrition
S D CooperJ V Nolan

Abstract

The effect of the energy density (ED) of feeds offered as a choice on the diet selection of sheep, and the relationship between the rumen environment and the diet selected from feeds of different ED were investigated in two experiments. In the first experiment two feeds, L and H, and their mixture M (3:1 w/w) were formulated. All feeds had similar calculated metabolizable protein:metabolizable energy (ME) ratios, but differed in ED (7.4, 8.1 and 10.1 MJ ME/kg fresh feed for L, M and H respectively). The feeds were offered ad lib. either singly or in paired choices (L/M, L/H and M/H; n6 per treatment) to growing sheep. Although the rate of live-weight (Lwt) gain on feed H was higher than on feeds L or M, and the daily rate of feed intake lower, the sheep on feed choices did not consume only feed H. Instead they selected a mixture of both feeds offered, such that the total amount of H consumed per kg fresh feed was similar on choices L/H and M/H. The rate of Lwt gain of sheep on choices L/H and M/H was not different from that achieved on feed H alone. In the second experiment the choice L/H was offered to fistulated sheep (10 months of age, mean Lwt 57.5 kg) in an 8 x 8 Latin square, with 7 d periods. Treatments were infusions in...Continue Reading

References

Aug 1, 1978·Theoretical Population Biology·G E Belovsky
Mar 1, 1991·The Proceedings of the Nutrition Society·G C Emmans
Apr 1, 1988·Gastroenterology·L R SchillerJ S Fordtran
Nov 1, 1971·Psychological Review·P Rozin, J W Kalat
Jul 1, 1967·Journal of Dairy Science·A N Bhattacharya, R G Warner

❮ Previous
Next ❯

Citations

May 19, 2000·The Proceedings of the Nutrition Society·A J Duncan, I J Gordon
Feb 1, 1997·The British Journal of Nutrition·J J Villalba, F D Provenza
Aug 6, 2004·Proceedings. Biological Sciences·F J Pérez-BarberiaA W Illius
Apr 29, 2014·Journal of Dairy Science·E K Miller-CushonA Bach
Jan 7, 2003·Journal of Dairy Science·J E KeunenB W McBride
Jan 1, 2013·Polish Journal of Veterinary Sciences·A M BrzozowskaZ M Kowalski
May 1, 1997·Journal of Dairy Science·M R MurphyR D Shanks
Sep 4, 2009·The Journal of Continuing Education in the Health Professions·Robert LukeLorraine Carter
Mar 19, 2019·Animal Science Journal = Nihon Chikusan Gakkaihō·Xiaokang MaXiangshu Piao
Sep 6, 2014·The British Journal of Nutrition·Winsome R Parnell, Andrew R Gray
Feb 11, 2012·The British Journal of Nutrition·Rebecca J HughesJoan K Ransley
Jul 24, 2001·Health Education & Behavior : the Official Publication of the Society for Public Health Education·V Tarasuk
Apr 12, 2001·Public Health Nutrition·J ScaliM Gerber
Oct 31, 2001·Public Health Nutrition·E Dowler
Aug 18, 2000·The Proceedings of the Nutrition Society·M Nelson
Mar 1, 1997·The Proceedings of the Nutrition Society·E A Dowler, B M Dobson
Mar 1, 1997·The Proceedings of the Nutrition Society·G D Smith, E Brunner
Mar 1, 1997·The Proceedings of the Nutrition Society·M Nelson
Jul 26, 2008·Journal of Toxicology and Environmental Health. Part a·Maria Assunta MeliLaura Feduzi

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.