Search for the best prices     on the Internet!

Table of Contents:

Preface
Acknowledgements
Tributes to deceased colleagues: Maria Kotarbinska
Tributes to deceased colleagues: Carlos Prieto
Opportunities for application of studies on leptin in animal production 1
The effect of dietary asynchrony on circadian changes in net nutrient fluxes across the portal-drained viscera in calves 15
Oxygen consumption by hindquarters in cold-exposed new-born pigs 19
Dietary protein is the major source of energy for the portal-drained viscera of fed piglets 23
Energy expenditure and mitochondrial proton leak in lean and obese strains of rats 27
Influence of energy density and metabolizable energy intake on visceral organ growth in sheep 31
Changes in gut and liver glucose release and oxygen consumption during gestation and lactation in the ewe 35
Effects of abomasal wheat starch infusion on splanchnic metabolism and energy balance of lactating dairy cows 39
Fatty acid oxidation in skeletal muscle mitochondria from newborn pigs 43
Brown adipose tissue thermogenesis and ontogeny in Bos indicus and Bos taurus cattle 47
Effects of dietary fats (medium-chain vs. long-chain fatty acids) on the oxidative capacity of tissues in the preruminant calf 51
Influence of energy density and metabolizable energy intake on substrate metabolism by ruminal epithelial cells isolated from sheep 55
Energy and protein requirements of growing female Etawah crossbreed goats determined from metabolic parameters 59
Nutrient utilization of growing female Etawah crossbreed goats fed diets containing different protein/energy ratios 63
Mid-term effect of photoperiod on adipose tissue lipogenesis, plasma metabolites, insulin, somatotropin and prolactin in underfed-refed ewes 67
The influence of cow genotype and concentrate proportion in the diet on energy utilization by lactating dairy cows 77
Utilization of energy and protein by sows underfed during lactation 81
Energy metabolism of lactating first litter sows as affected by feeding level and diet composition 85
Modelling metabolizable energy utilization in laying hens 89
Some aspects of the energy metabolism in lactating goats 93
The metabolizable energy requirement for maintenance and the efficiencies of utilization of metabolizable energy for lactation and tissue retention in dairy cows 97
Bovine adaptive thermogenesis and expression of ATP-sensitive K[superscript +] channels in monocytes 107
Insulin receptor characteristics in ruminant tissues. Effects of breed, sex and stage of development 111
Role of D,L-1,2-propanediol in ruminant glucose metabolism 115
Influence of casein and soy protein isolate on thyroid hormone status and on energy and protein metabolism in growing pigs 119
Effect of salbutamol on body composition and energy utilization in growing pigs fed two levels of protein 123
Methane reduction and energy turnover in lambs receiving different dietary fat supplements 127
Crude protein and supplemental dietary tryptophan effects on growth and tissue neurotransmitter levels 131
Dietary separation of protein and carbohydrate intake 135
Thermic effects of carbohydrates and unsaturated fats fed to sows below and above maintenance level 139
Effects of cell-mediated immune response on energy metabolism in weanling piglets 143
Effect of plant lecithins on the efficiency of ruminal nutrient degradation and on methane and hydrogen loss in vitro (rusitec) 147
Effect of [alpha][subscript 2]- adrenergic stimulation and feeding on heat production of growing bulls 151
Energy and protein metabolism and endocrine response in growing rats fed on diets with different protein sources - soy protein or casein 155
Carnitive supplementation decreases heat production in racing pigeons during flight simulation 159
The partitioning of energy from digestible carbohydrate by rainbow trout (Oncorhynchus mykiss) 163
Effects of body lipids and energy balance on the response of plasma non-esterified fatty acids to a [beta]-adrenergic challenge in the lactating dairy ewe 167
Development and use of deuterium oxide dilution equations to predict body composition of Holstein cows 177
Estimate of the postabsorptive protein and fat metabolism in growing pigs after long-term feeding on diets with soy protein isolate or casein using a [superscript 13]C, [superscript 15]N-amino acid approach 181
The application of the labelled [superscript 13]C-bicarbonate method for estimating energy expenditure in goats 185
The use of sulphur hexafluoride for measuring methane production by cattle 189
Nutrient metabolism and carcass characteristics of male thin tail sheep receiving clenbuterol 193
Non-invasive optical determination of animal energy metabolism using near-infrared laser 197
The integration of DEXA, ultrasound scans and growth modelling technology to estimate body composition in growing pigs 201
Effects of solar radiation and feeding time in a hot environment on heat and energy balance parameters in cattle fed a high energy concentration diet 205
Evaluation of the in vitro gas production system for estimating the methane producing potential of ruminant feeds 209
Oxidation of nutrients in growing calves 213
Macronutrient utilization by offspring from wild and selected Atlantic salmon 221
Effect of breed and body weight on components of heat production in growing pigs 225
Energy utilization in realimented pigs in relation to initial body composition 229
Energy expenditure of adolescents in standardized and free-living conditions; variations with age, gender, body composition and physical activity 233
Effects of diet energy density and protein (amino acid) content on intake, body composition and energy metabolism of boars and gilts fed ad libitum from 22 to 46 kg 237
Energy metabolism of the heavy pig: results of different trials 241
Effect of chlortetracycline medicated feed in therapeutic levels on energy and protein metabolism in growing pigs 245
Energy deposition and body composition measurement of pigs of different ryanodine receptor genotypes by dual energy x-ray absorptiometry 249
Influence of an ionophore and/or a buffer added to a molasses/cereal diet in growth, carcass characteristics and energetic efficiency of bulls 253
Anabolic implant effects on body composition and energetics of beef steers 257
Energy density of growth in beef cattle with respect to growth regulation strategies 261
Effect of short-term exposure to high ambient temperatures on heat production in boars of different breeds 271
Nutritional effects on metabolic rate and physical activity in group housed, 50 kg pigs 275
Heat production associated with eating in cattle 279
Daily energy expenditure and protein requirement of working female swamp buffaloes estimated from energy balance and body composition 283
Energy cost of activity (standing versus lying) in group-housed young pigs 287
Energy expenditure in growing pigs infected with pleuropneumonia 291
Metabolic adjustments in the camel and sheep during food deprivation and refeeding 295
Body heat content of dairy cows 299
Heat production and body temperature of Bos taurus x Bos indicus crossbred cattle in the humid tropics 303
Dependence of heat production on feed level and ambient temperature in heifers in the range of malnutrition 307
Energy requirement for gluconeogenesis - measurements in bulls with duodenal fistulas 311
Postprandial energy turnover and metabolism of physically active or inactive young male volunteers 315
Dietary energy utilization: sensitivity of a net energy model to varying estimates of food intake, maintenance requirement and protein deposition 323
Partitioning of energy in protein and fat retention at increasing energy intakes in growing animals 327
Modelling dynamic aspects of heat production in pigs 331
Interaction of glucose and amino acid metabolism in lactating sows: Estimating internal parameters of a model of metabolism 335
Modelling total heat production of broiler chickens as a basis for climate control 339
Ileally digestible pea starch results in a lower energy gain in growing pigs compared to ileally digestible maize starch 347
Estimation of maintenance energy requirements and efficiency of utilization of metabolizable energy for growth in lambs by indirect calorimetry and comparative slaughter 351
Predicting net energy of feedstuffs for beef cattle 355
The effect of stage of harvest of maize silage on the concentration and efficiency of utilization of metabolizable energy by lactating dairy cows 359
Partition of energy digestion in pigs fed barley-based diets with forage meal inclusion 363
Energy utilization of diets with different sources of dietary fibre in growing pigs 367
The effective energy of six poultry diets measured in young and adult birds 371
The effect of grass silage:concentrate ratio in the diet of beef cattle and lambs on the efficiency of utilization of metabolizable energy for growth 375
Methane suppression by calcium soaps of stearic, oleic and linoleic acid mixtures in cattle 379
Extrapolating from ME to NE: unintended consequences 383
Treatment of urea-treated whole crop wheat to improve its energy value for lactating dairy cows 387
The influence of dietary carbohydrate and protein levels on energy and nitrogen utilization of Atlantic salmon in seawater 391
List of participants 397
Index of laboratories studying energy metabolism in farm animals (September 1997) 411
Author index 437
Subject index 441