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  1. Behavioral indicators of slow growth in nursery pigs

    Contributor(s):: He, Yijie, Deen, John, Shurson, Gerald C., Li, Yuzhi Z.

    The objective of this study was to determine how feeder-space allowance affects behaviors of slow- and fast-growing pigs during the nursery period. Nursery pigs (n = 192; initial weight = 7.4 ± 1.6 kg) were housed in 24 pens of 8 pigs, with 12 pens provided with either a two-space feeder or a...

  2. Dairy calves’ adaptation to group housing with automated feeders

    Contributor(s):: Fujiwara, Mayumi, Rushen, Jeffrey, de Passillé, Anne Marie

    Group housing of dairy calves with automated milk feeders has likely welfare and labour saving advantages but delays in the calves adapting to the feeding system may reduce these advantages. We examined factors that influence calves’ adaptation to the feeders. In Exp. 1, 77 Holstein calves were...

  3. Can stealing cows distort the results of feeding trials? An experiment for quantification and prevention of stealing feed by dairy cows from roughage intake control feeders

    Contributor(s):: Ruuska, Salla, Hämäläinen, Wilhelmiina, Sairanen, Auvo, Juutinen, Elina, Tuomisto, Leena, Järvinen, Mikko, Mononen, Jaakko

    Practical experience suggests that stealing behaviour of dairy cows may affect the results in feeding trials, when automated feed troughs are used for measuring and controlling the feed intake. The objectives of the present study were to analyse the stealing behaviour from the log data of the...

  4. Feeding strategy in group-housed growing pigs of four different breeds

    Contributor(s):: Fernández, Josep, Fàbrega, Emma, Soler, Joaquim, Tibau, Joan, Ruiz, José Luis, Puigvert, Xavier, Manteca, Xavier

    Feeding strategy was studied in 205 growing boars in two blocks of 116 and 89 pigs of four breeds (Large White, Landrace, Duroc and Pietrain) respectively. Pigs were housed in groups of 12–14 individuals, with a single breed in each group. Feeding patterns were recorded with a computerized feed...

  5. Effect of fasting on self-feeding activity in juvenile sea bass (Dicentrarchus labrax)

    Contributor(s):: Benhaïm, David, Bégout, Marie-Laure, Péan, Samuel, Brisset, Blandine, Leguay, Didier, Chatain, Béatrice

    In various experiments under self-feeding conditions, sea bass groups could be divided into three categories regarding feeder actuation: high, low and zero-triggering fish. In all cases few high-triggering fish were responsible for a high percentage of the feed delivery. A question was raised...

  6. “Hay-bags” and “Slow feeders”: Testing their impact on horse behaviour and welfare

    Contributor(s):: Rochais, C., Henry, S., Hausberger, M.

    The temporal distribution of feeding behaviour is of primary importance in grazing herbivores. Many domestic horses are managed under conditions far removed from the natural environment. For example, restricted access to roughage may induce health problems such as gastric ulceration, but also be...

  7. Self-feeding behaviour and personality traits in tilapia: A comparative study between Oreochromis niloticus and Sarotherodon melanotheron

    Contributor(s):: Benhaïm, David, Akian, Djétouan Dieudonné, Ramos, Mathieu, Ferrari, Sébastien, Yao, Kouakou, Bégout, Marie-Laure

    Hybridization aims at combining valuable traits from two species into a single group. Nile tilapia Oreochromis niloticus (NT) and Black-chinned tilapia Sarotherodon melanotheron (BCT) are respectively characterized by fast growth and water salinity tolerance which attract the breeders who could...

  8. The effect of trough space and floor space on feeding and welfare of lambs in an intensive finishing system

    Contributor(s):: Jongman, Ellen C., Rice, Maxine, Campbell, Angus J. D., Butler, Kym L., Hemsworth, Paul H.

    This study examined the effects of floor space and feeder space on the feeding behaviour, growth and stress physiology of lambs, at different times, over a 6-week period in a finishing feedlot. A total of 640 lambs in four time replicates (160 lambs per replicate) were studied in four 40-lamb...

  9. Effects of culture densities on feed demand, behavioural tests and on the hepatic and cerebral oxidative status in tilapia (Oreochromis sp.)

    Contributor(s):: Sánchez-Muros, María J., Sánchez, Belén, Barroso, Fernando G., García-Mesa, Sergio, Rufino-Palomares, Eva E., Lupiáñez, José A., Sanz, Ana

    The present study examines whether fish density affects behavioural tests, feed demand, and different parameters indicative of the oxidative status of the liver and brain of Orechromis sp. to identify welfare indicators for fish culturing. The fish were maintained at two commercial densities (5.6...

  10. Feeder space affects access to the feeder, aggression, and feed conversion in laying hens in an aviary system

    Contributor(s):: Sirovnik, Janja, Würbel, Hanno, Toscano, Michael J.

    In laying hens, minimal requirements for feeder space (cm per bird) are based primarily on data from small groups of hens (n < 10) housed in battery cages. The aim of the present study was to determine the effects of feeder space on agonistic behaviour, access to the feeder, and production in...

  11. Effect of portion size and milk flow on the use of a milk feeder and the development of cross-sucking in dairy calves

    Contributor(s):: Nielsen, Per Peetz, Jensen, Margit Bak, Halekoh, Ulrich, Lidfors, Lena

    This study aimed to investigate whether reducing the milk flow and increasing the milk portion size of a computer-controlled milk feeder would lead to less cross-sucking and fewer unrewarded feeder visits in dairy calves. Five groups, each with 9 or 10 calves (n = 48), were housed in pens with...

  12. A modeling approach for estimating seasonal dietary preferences of goats in a Mediterranean Quercus frainetto-Juniperus oxycedrus woodland

    Contributor(s):: Manousidis, T., Malesios, C., Kyriazopoulos, A. P., Parissi, Z. M., Abraham, E. M., Abas, Z.

    Goats are characterized as selective feeders due to their specific feeding behavior, thus the study of their seasonal preferences in a Mediterranean oak-juniper ecosystem is of great interest. The current research was conducted in an open oak forest in Megalo Dereio region, northeastern Greece...

  13. Feeding behavior and the effect of photoperiod on the performance and hematological parameters of the pacama catfish ( Lophiosilurus alexandri)

    Contributor(s):: Kitagawa, A. T., Costa, L. S., Paulino, R. R., Luz, R. K., Rosa, P. V., Guerra-Santos, B., Fortes-Silva, R.

    The aim of this study was to evaluate the rhythms of feeding and locomotor activity, the ability to synchronize to a fixed feeding time, and the influence of photoperiod on the growth parameters, feed intake and hematological parameters of a recently introduced fish in freshwater Brazilian...

  14. Environmental enrichment for dendrobatid frogs

    Contributor(s):: Hurme, K., Gonzalez, K., Halvorsen, M., Foster, B., Moore, D., Chepko-Sade, B. D.

    The Central Park Zoo, one of the Wildlife Conservation Society's Living Institutions in New York, recently renovated an exhibit for dart-poison frogs. Staff developed a new hollow coconut insect feeder in conjunction with this project. When the exhibit change, coconut feeder, and other...

  15. Feeder use patterns in group-housed pregnant sows fed with an unprotected electronic sow feeder (Fitmix)

    Contributor(s):: Chapinal, N., Ruiz-de-la-Torre, J. L., Cerisuelo, A., Baucells, M. D., Gasa, J., Manteca, X.

    Previous studies on feeder use in group-housed pregnant sows focused on dynamic groups and protected electronic sow feeders (ESF). This study observed 60 pregnant sows, 1st to 8th parity - housed from Day 29 of pregnancy to 1 week before parturition in stable groups of 20 animals, 1 Fitmix feeder...

  16. The effect of feeding enrichment on the moloch gibbon ( Hylobates moloch )

    Contributor(s):: Wells, D. L., Irwin, R. M.

    This study explored the effect of 3 feeding devices (food-filled baskets, polyvinyl chloride tubes, frozen ice pops) on the behavior of 4 zoo-housed moloch gibbons. The project studied the gibbons for 5 days during a control condition (no feeding enrichment) and 5 days per condition of feeding...

  17. Dairy calves' adaptation to group housing with automated feeders

    Contributor(s):: Fujiwara, M., Rushen, J., Passille, A. M. de

    Group housing of dairy calves with automated milk feeders has likely welfare and labour saving advantages but delays in the calves adapting to the feeding system may reduce these advantages. We examined factors that influence calves' adaptation to the feeders. In Exp. 1, 77 Holstein calves were...

  18. Activity and enrichment use in disabled Asiatic black bears (Ursus thibetanus) rescued from bile farms

    Contributor(s):: Dallaire, J. A., Field, N., Mason, G. J.

  19. Automated monitoring of behavioural-based animal welfare indicators

    Contributor(s):: Rushen, J., Chapinal, N., Passille, A. M. de

  20. Food distribution effects on the behaviour of captive common marmosets, Callithrix jacchus

    Contributor(s):: Bjone, S. J., Price, I. R., McGreevy, P. D.