Search Results - "TOLKAMP, B.J."

Genetic parameters of feeding behavior traits and their relationship with live performance traits in modern broiler lines by Howie, J.A, Avendano, S, Tolkamp, B.J, Kyriazakis, I

“…Current selection goals in broiler breeding focus on the improvement of live performance traits, such as feed intake, BW, and feed conversion ratio (FCR). The…”
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Efficiency of energy utilisation and voluntary feed intake in ruminants by Tolkamp, B. J.

“…Energy requirements of animals are most readily expressed in terms of net energy (NE), while the energy yield of feed is, at least initially, expressed in…”
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structure of feeding behavior in commercial broiler lines selected for different growth rates by Howie, J.A, Tolkamp, B.J, Avendano, S, Kyriazakis, I

“…Selection for increased growth rate in livestock is accompanied by increased requirements for food resources. It has been suggested that more intensively…”
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Behaviour and welfare of broiler breeders fed qualitatively restricted diets during rearing: Are there viable alternatives to quantitative restriction? by Sandilands, V., Tolkamp, B.J., Savory, C.J., Kyriazakis, I.

“…This study investigated whether feeding female broiler breeders on qualitatively, rather than quantitatively, restricted diets during rearing could improve…”
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Effects of qualitative feed restriction during rearing on the performance of broiler breeders during rearing and lay by Tolkamp, B.J, Sandilands, V, Kyriazakis, I

“…To prevent health and fertility problems associated with excessive weight gain, broiler breeders are severely feed restricted during rearing, which may affect…”
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use of conditioned place preference to determine broiler preferences for quantitative or qualitative dietary restriction by Buckley, L.A, Sandilands, V, Hocking, P.M, Tolkamp, B.J, D’eath, R.B

“…1. Calcium propionate (CAP) may improve the welfare of feed restricted broiler breeders by improving their satiety when included within the feed ration…”
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The biologically relevant unit for the analysis of short-term feeding behavior of dairy cows by Tolkamp, B J, Schweitzer, D P, Kyriazakis, I

“…To determine whether visits or meals are the most biologically relevant unit of short-term feeding behavior, we analyzed 209,025 records of visits to feeders…”
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Toward a new practical energy evaluation system for dairy cows by Tolkamp, B.J, Kyriazakis, I

“…Energy evaluation systems translate an animal’s net energy (NE) requirements into feed metabolisable energy requirements (MER). The Feed into Milk (FiM)…”
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Short-term feeding behaviour has a similar structure in broilers, turkeys and ducks by Howie, J.A, Tolkamp, B.J, Bley, T, Kyriazakis, I

“…1. This study is the first to quantitatively compare the structure of feeding behaviour of broilers, ducks and turkeys as recorded by electronic feeders. It…”
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Satiety Splits Feeding Behaviour into Bouts by Tolkamp, B.J., Allcroft, D.J., Austin, E.J., Nielsen, B.L., Kyriazakis, I.

“…Animal behaviour is frequently displayed in bouts. Bout analysis aims at finding a bout criterion, i.e. that time between events that separates intervals…”
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Diet choice by dairy cows. 1. Selection of feed protein content during the first half of lactation by Tolkamp, B J, Dewhurst, R J, Friggens, N C, Kyriazakis, I, Veerkamp, R F, Oldham, J D

“…Effects of weeks in milk and milk yield on diet choice were recorded during the first half of lactation. Low and high protein feeds were used, and both…”
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Changes in feeding behavior as possible indicators for the automatic monitoring of health disorders in dairy cows by González, L A, Tolkamp, B J, Coffey, M P, Ferret, A, Kyriazakis, I

“…Changes in short-term feeding behavior of dairy cows that occur with the onset of the health disorders ketosis, acute locomotory problems, and chronic lameness…”
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Animal health and greenhouse gas intensity: the paradox of periparturient parasitism by Houdijk, J.G.M., Tolkamp, B.J., Rooke, J.A., Hutchings, M.R.

“…[Display omitted] •A framework to assess animal health impact on greenhouse gas (GHG) intensity is proposed.•We assessed impact of parasitism on performance…”
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Behavioural adaptation to a short or no dry period with associated management in dairy cows by Kok, Akke, van Hoeij, Renny J., Tolkamp, Bert J., Haskell, Marie J., van Knegsel, Ariëtte T.M., de Boer, Imke J.M., Bokkers, Eddie A.M.

“…•Cows had a short or no dry period with associated ration and group changes.•We compared feeding, lying, and steps of cows with no versus a short dry…”
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Tests of two theories of food intake using growing pigs 2. The effect of a period of reduced growth rate on the subsequent intake of foods of differing bulk content by Whittemore, E.C., Emmans, G.C., Tolkamp, B.J., Kyriazakis, I.

“…The effect of a period of feeding on a high bulk food, upon the subsequent intake of foods of differing bulk content, was investigated in two experiments of…”
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Effects of maternal protein nutrition and subsequent grazing on chicory (Cichorium intybus) on parasitism and performance of lambs by Kidane, A, Houdijk, J.G.M, Athanasiadou, S, Tolkamp, B.J, Kyriazakis, I

“…Forty-eight 4- to 5-yr-old Blackface x Bluefaced Leicester (Mule) ewes and their 24-d-old twin lambs were used to assess the effects of maternal protein…”
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Effect of amount offered on intake, digestibility and value of Gliricidia sepium and Leucaena leucocephala for West African Dwarf goats by Bosman, H.G., Versteegden, C.J.G.M., Odeyinka, S.M., Tolkamp, B.J.

“…In two experiments with Gliricidia sepium (G) and G combined with Leucaena leucocephala (GL), 14 West African Dwarf goats were offered seven feed levels…”
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Control of energy balance in relation to energy intake and energy expenditure in animals and man: an ecological perspective by Stubbs, R. J., Tolkamp, B. J.

“…In this paper, we consider the control of energy balance in animals and man. We argue that patterns of mammalian feeding have evolved to control energy balance…”
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Towards a functional explanation for the occurrence of anorexia during parasitic infections by KYRIAZAKIS, I., TOLKAMP, B.J., HUTCHINGS, M.R.

“…The development and occurrence of anorexia, the voluntary reduction in food intake during parasitic infections in animals, is somewhat paradoxical and contrary…”
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The use of Mixed Distribution Models to Determine Bout Criteria for Analysis of Animal Behaviour by YEATES, M.P., TOLKAMP, B.J., ALLCROFT, D.J., KYRIAZAKIS, I.

“…Feeding behaviour consists of feeding events, separated by non-feeding intervals. Feeding events are often clustered into bouts, which may be called meals…”
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