Physical constraints on voluntary intake of forages by ruminants

MS Allen - Journal of animal science, 1996 - academic.oup.com
Voluntary dry matter intake (VDMI) of forages by ruminants may be limited by distention
resulting from restricted flow of digesta through the gastrointestinal tract. An animal's …

Towards a functional explanation for the occurrence of anorexia during parasitic infections

I Kyriazakis, BJ Tolkamp, MR Hutchings - Animal behaviour, 1998 - Elsevier
The development and occurrence of anorexia, the voluntary reduction in food intake during
parasitic infections in animals, is somewhat paradoxical and contrary to conventional …

[图书][B] Voluntary food intake and diet selection in farm animals

JM Forbes - 2007 - books.google.com
Feeding behaviour--Feedbacks from the gastrointestinal tract--Metabolites and hormones--
Central nervous system and the special senses--Learning about food; conditioned …

Biological basis for variation in residual feed intake in beef cattle. 2. Synthesis of results following divergent selection

EC Richardson, RM Herd - Australian Journal of Experimental …, 2004 - CSIRO Publishing
Experiments on Angus steer progeny following a single generation of divergent selection for
residual feed intake suggest that there are many physiological mechanisms contributing to …

Evaluation of the factors affecting silage intake of dairy cows: a revision of the relative silage dry-matter intake index

P Huhtanen, M Rinne, J Nousiainen - Animal, 2007 - Elsevier
An evaluation of the factors affecting silage dry-matter intake (SDMI) of dairy cows was
conducted based on dietary treatment means. The data were divided into six subsets based …

Metabolic constraints on voluntary intake in ruminants

AW Illius, NS Jessop - Journal of animal Science, 1996 - academic.oup.com
The weak point in all current methods or models of diet formulation is the prediction of
intake. The major uncertainty is not in the cases in which physical constraints apply, but in …

'Freedom from hunger'and preventing obesity: the animal welfare implications of reducing food quantity or quality

RB D'Eath, BJ Tolkamp, I Kyriazakis, AB Lawrence - Animal Behaviour, 2009 - Elsevier
In animals, including humans, free access to high-quality (generally energy-dense) food can
result in obesity, leading to physiological and health problems. Consequently, various …

Foraging responses of kudus to seasonal changes in food resources: elasticity in constraints

N Owen-Smith - Ecology, 1994 - Wiley Online Library
Foraging behavior provides the mechanistic link between species performance and food
resources in the environment. I document the foraging responses of a browsing ruminant …

Theories of optimization, form and function in branching architecture in plants

KD Farnsworth, KJ Niklas - Functional Ecology, 1995 - JSTOR
Optimality models are used as a tool for studying design in the context of natural selection. It
has often been pointed out (eg Parker & Maynard Smith 1990) that it is not necessary to …

A personal view of how ruminant animals control their intake and choice of food: minimal total discomfort

JM Forbes - Nutrition Research Reviews, 2007 - cambridge.org
Voluntary food intake and the selection between foods are important subjects especially in
ruminants in view of the economic importance of this class of animal and the complex …