Contents of livestock production science, volume 39

Contents of livestock production science, volume 39

LIVESTOCK PR$0W&T~N ELSEVIER Livestock Production Science 39 (1994) 319-320 Contents of Livestock Production Science, Volume 39 VOL. 39 NO. 1 JUNE ...

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LIVESTOCK PR$0W&T~N ELSEVIER

Livestock Production Science 39 (1994) 319-320

Contents of Livestock Production Science, Volume 39 VOL. 39 NO. 1

JUNE 1994

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...................

.. “I,

Session 1: Feed Intake The regulation and prediction of feed intake in ruminants in relation to feed characteristics 1 J.P. Dulphy and C. Demarquilly (St-Genes-Champanelle, France) . . . . . . . . . . . . .. . . . . . . . . .. The relationship between the control of meal size and the control of daily intake in ruminants 13 . .. . . . . . .. . .. . . . M. Gill and D. Romney (Chatham Maritime, Kent, UK) . . . Models of voluntary food intake in cattle 19 K. L@nneIngvartsen (Tjele, Denmark) . . . . . . , . . . . . .. . . . . . . . . .. . . .. . . . . Effect of breed and feeding intensity during rearing on the feed intake capacity of first lactation dairy cows J. Foldager and K. Haarbo (Tjele, Denmark) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Estimation of the physical fill of feedstuffs in the mmen by the in sacco degradation characteristics . . 43 J. Madsen (Frederiksberg, Denmark), T. Stensig, M.R. Weisbjerg and T. Hvelplund (Tjele, Denmark) . Estimation of voluntary feed intake from in sacco degradation and rate of passage of DM or NDF . 49 T. Stensig, M.R. Weisbjerg (Tjele, Denmark), J. Madsen (Frederiksberg, Denmark) and T. Hvelplund (Tjele, Denmark) Session 2: Absorption of Nutrients Recent advances in understanding of microbial transformation in ruminants E.R. Qhskov (Aberdeen, UK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Production and absorption of volatile fatty acids in the rumen J. Dijkstra ( Wageningen, Netherlands) . . .. .. . . .. . . ... . ... . .. . . . . . . . . Monosaccharide composition of cell-wall carbohydrates. Digestion and absorption ... . . .. . . .. .. .. . . . . . . .. . . . , . K.-H. Stldekum (Kiel, Germany) . . . . . . . . . . . . . . . . Rumen fermentation pattern in goats and sheep grazing pastures from semiarid Spanish lands unsupplemented or supplemented with barley grain or barley grain-urea M.A.Garcia,M.D.Isac,J.F.AguileraandE.MolinaAlcaide(Granada,Spain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._.... Factors affecting the site and extent of organic matter digestibility in sheep .. .. . . . . .. . . .. . . . N.A. Todorov and D.S. Djouvinov (Stara Zagora, Bulgaria) . . . Prediction of dry matter and protein degradability of forages by near infrared spectroscopy . . . . .. . .. . N. Todorov, S. Atanassova, D. Pavlov and R. Grigorova (Stara Zagora, Bulgaria) Digestibility of nitrogen in sheep fed heat damaged protein J. Voigt, K. Krawielitzki, P.-M. Zwierz, R. Krawielitzki, R. Prym (Restock, Germany) and F. Weissbach (Braunschweig, Germany) . . . . .. .. . . . . . . .. . . . ... ... . . . .... ... _. . . , . . . . . . . _. _. ._ . Digestibility and allantoin excretion in cows fed diets differing in nitrogen content . .. . . . . . . . P. Susmel, M. Spanghero, B. Stefanon, CR. Mills and E. Plazzotta (Udine, Italy) Cation exchange capacity, cell wall composition and fermentation kinetics in forages E. Salimei (Milan, Italy), P.J. Van &rest, B.I. Giner Chavez (Ithaca NY, USA), 0. Pedron, V. Dell’Orto (Milan, Italy) and . .. . . . . . . .. . .. . . . . . . . F. Polidori (&merino, Italy)

0301-6226/94/$07.00 0 1994 Elsevier Science B.V. All rights reserved SSDIO301-6226

53 61 71

81 85 89

93 97

101

320 Session 3: Metabolism

and Utilization

of Absorbed Nutrients

Modelling homeostatic and homeorhetic regulations in lactating animals D. Sauvant (Paris, France) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nutrient metabolism and utilization in the liver A. Danfax (Tjele, Denmark) . . . . . . . . . . . . . . . . .. . .. . . .. ... . . .. . . .. .... . . . . . . Nutrient metabolism and utilization in the mammary gland . . ... .. . .. . .. .. C.H. Knight (Ayr, UK), J. France (Okehampton, Devon, UK) and D.E. Beever (Reading, UK) . Metabolic effects of two different lapses without concentrate in early lactating dairy cows G. Bertoni, E. Trevisi and P. Bard (Piacenza, Italy) . . . . . . . . . .. . .. .... . . .. ... . . . .. .. . . .. .. .. ... . Special Issue: Feed Evaluation

105 115 129 139

for Ruminants

JULY 1994

VOL. 39 NO. 2

Relationship between dietary fat supplementation and milk protein concentration in lactating cows: A review Z. Wu and J.T. Huber (Tucson, AZ, USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Rotation crosses and in&r se matings with Angus and Hereford cattle for five generations

C.A. Morris, R.L. Baker, N.G. Cullen and D.L. Johnson (Hamilton, New Zealand) . . . . . . . . . . .. . . . .. . . .. . Relationship between own performance test and progeny test for beef production traits in Swiss dual-purpose cattle Y. Schleppi, A. Hofer (Zurich, Switzerland), R.L. Quaas, F. Schmitz (Ithaca, NY, USA) and N. Kilnzi (Zurich, Switzerland) . . . . Effects of Booroola Merino breeding and the Fe? gene on performance of crosses with longwool breeds. 1. Effects on growth, onset of puberty, wool production and wool traits H.H. Meyer, M.L. Bigham, R.L. Baker, T.G. Harvey and S.M. Hickey (Hamilton, New Zealand) . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .. . .. Effects of Booroola Merino breeding and the Feca gene on performance of crosses with longwool breeds. 2. Effects on reproductive performance and weight of lamb weaned by young ewes H.H. Meyer, R.L. Baker, T.G. Harvey and SM. Hickey (Hamilton, New Zealand) . ... . .. . .. . . .. .... . . . .. . . Prediction of in situ protein degradability in the rumen. Results of a European ringtest .. . .. . . .. ... .. . . .. . .. .. . . J. Madsen (Frederiksberg, Denmark) and T. Hvelplund (Tjele, Denmark) . . . . . . Effects of dietary amino acid content between 20 and 50 kg and 50 and 100 kg live weight on the subsequent and overall performance

157 173

183

191 201

of pigs

L.I. Chiba (Aubum,AL,USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 Nitrate and pig manure in drinking water to early weaned piglets and growing pigs M.T. Serensen, B.B. Jensen and H.D. Poulsen (Tjele, Denmark) . . . . . . . . . .. .. . . .. . .. . . .. .. 223

AUGUST 1994

VOL. 39 NO. 3

Effects of interaction between genotype and feeding system on milk production, feed intake, emciency and body tissue mobilization in dairy cows R.F. Veerkamp, G. Simm and J.D. Oldham (Edinburgh, UK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Genetic relationships between clinical mastitis, somatic cell count, and udder conformation in Danish Holsteins T. Lund, F. Miglior, J.C.M. Dekkers and E.B. Burnside (Guelph, Ont., Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nutritional factors related to farm milk protein content - an observational study P. Dobbelaar, D.T. Scholl (Utrecht, Netherlands), E.A.M. Roosendaal (Wageningen, Netherlands), Y.H. Schukken and A. Brand (Utrecht, Netherlands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effects of a low-energy diet followed by a compensatory diet on growth, puberty and milk production in dairy heifers H. Barash (Bet Dagan, Israel), Y. Bar-Meir (Afiqbn, Israel) and I. Bruckental (Bet Dagan, Israel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effect of antibiotic feed additives on the level of skatole in fat of male pigs L.L. Hansen and AJL Larsen (Tjele, Denmark) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pigs fed Fusarium-infected maize containing zearalenone and nivalenol with sweeteners and bentonite

K.C. Williams, B.J. Blaney and R.T. Peters (Yeerongpilly, Qld., Australia) . . . . . . . .. . . Arthritis in the carpal joints of Norwegian trotter - heritability, effects of inbreeding and conformation

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. . ... . .. . . . . .. . . .. N.I. Dolvik (Oslo, Norway) and G. Klemetsdal (As, Norway) Short Communication A note on genetic correlations between pubertal traits of males or females and lifetime pregnancy rate in beef cattle

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C.A. Morris and N.G. Cullen (Hamilton, New Zealand) . . . . . . . . . . . . . . . . . . . . . . .................... .. .... . ... .. . Erratum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._..................................................................................... Author Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . ... .. .. ... . .... ... . .... . ... .. . . ... .

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