Animal Production Publications


  • Averós, X., & Estevez, I. (2018). Meta-analysis of the effects of intensive rearing environments on the performance and welfare of broiler chickens. Poultry Science, 97(11), 3767-3785. doi:10.3382/ps/pey243
  • Benhissi, H., De Heredia, I. B., & García-Rodríguez, A. (2018). Effect of replacing palm fat with high-linoleic cold-pressed rapeseed or sunflower cakes on fatty acid biohydrogenation in an artificial rumen (rusitec). Animal Production Science, 58(3) doi:10.1071/AN15348
  • Diez-Olivan, A., Averós, X., Sanz, R., Sierra, B., & Estevez, I. (2018). Quantile regression forests-based modeling and environmental indicators for decision support in broiler farming. Computers and Electronics in Agriculture, doi:10.1016/j.compag.2018.03.025
  • López-García, A., Pineda-Quiroga, C., Atxaerandio, R., Pérez, A., Hernández, I., García-Rodríguez, A., & González-Recio, O. (2018). Comparison of mothur and QIIME for the analysis of rumen microbiota composition based on 16S rRNA amplicon sequences. Frontiers in Microbiology, 9(DEC) doi:10.3389/fmicb.2018.03010
  • Pineda-Quiroga, C., Camarinha-Silva, A., Borda-Molina, D., Atxaerandio, R., Ruiz, R., & García-Rodríguez, A. (2018). Feeding broilers with dry whey powder and whey protein concentrate affected productive performance, ileal digestibility of nutrients and cecal microbiota community. Animal, 12(4), 692-700. doi:10.1017/S1751731117002208
  • Zidar, J., Campderrich, I., Jansson, E., Wichman, A., Winberg, S., Keeling, L., & Løvlie, H. (2018). Environmental complexity buffers against stress-induced negative judgement bias in female chickens. Scientific Reports, 8(1) doi:10.1038/s41598-018-23545-6
  • Gonzalez-Recio, O., Zubiria, I., García-Rodríguez, A., Hurtado, A., & Atxaerandio, R. (2018). Short communication: Signs of host genetic regulation in the microbiome composition in 2 dairy breeds: Holstein and brown swiss. Journal of Dairy Science, 101(3), 2285-2292. doi:10.3168/jds.2017-13179


  • Campderrich, I., Liste, G., & Estevez, I. (2017). Group size and phenotypic appearance: Their role on the social dynamics in pullets. Applied Animal Behaviour Science, 189, 41-48. doi:10.1016/j.applanim.2017.01.014
  • Campderrich, I., Liste, G., & Estevez, I. (2017). The looks matter; aggression escalation from changes on phenotypic appearance in the domestic fowl. PLoS ONE, 12(12) doi:10.1371/journal.pone.0188931
  • Keeling, L. J., Newberry, R. C., & Estevez, I. (2017). Flock size during rearing affects pullet behavioural synchrony and spatial clustering. Applied Animal Behaviour Science, 194, 36-41. doi:10.1016/j.applanim.2017.04.002
  • Nicolas Nazar, F., Estevez, I., Correa, S. G., & Marin, R. H. (2017). Stress induced polarization of immune-neuroendocrine phenotypes in gallus gallus. Scientific Reports, 7(1) doi:10.1038/s41598-017-08733-0
  • Pineda-Quiroga, C., Atxaerandio, R., Ruiz, R., & García-Rodríguez, A. (2017). Effects of dry whey powder alone or combined with calcium butyrate on productive performance, duodenal morphometry, nutrient digestibility, and ceca bacteria counts of broiler chickens. Livestock Science, 206, 65-70. doi:10.1016/j.livsci.2017.10.001
  • Pineda-Quiroga, C., Atxaerandio, R., Zubiria, I., Gonzalez-Pozuelo, I., Hurtado, A., Ruiz, R., & Garcia-Rodriguez, A. (2017). Productive performance and cecal microbial counts of floor housed laying hens supplemented with dry whey powder alone or combined with pediococcus acidilactici in the late phase of production. Livestock Science, 195, 9-12. doi:10.1016/j.livsci.2016.11.007
  • Pineda-Quiroga, C., Camarinha-Silva, A., Atxaerandio, R., Ruiz, R., & García-Rodríguez, A. (2017). Changes in broiler performance, duodenal histomorphometry, and caeca microbiota composition in response to wheat-barley based diets supplemented with non-antibiotic additives. Animal Feed Science and Technology, 234, 1-9. doi:10.1016/j.anifeedsci.2017.09.002
  • Richmond, S. E., Wemelsfelder, F., de Heredia, I. B., Ruiz, R., Canali, E., & Dwyer, C. M. (2017). Evaluation of animal-based indicators to be used in a welfare assessment protocol for sheep. Frontiers in Veterinary Science, 4(DEC) doi:10.3389/fvets.2017.00210
  • Sommerville, R., Ruiz, R., & Averós, X. (2017). A meta-analysis on the effects of the housing environment on the behaviour, mortality, and performance of growing rabbits. Animal Welfare, 26(2), 223-238. doi:10.7120/09627286.26.2.223


  • Frigerio, D., Cibulski, L., Ludwig, S. C., Campderrich, I., Kotrschal, K., & Wascher, C. A. F. (2016). Excretion patterns of coccidian oocysts and nematode eggs during the reproductive season in northern bald ibis (geronticus eremita). Journal of Ornithology, 157(3), 839-851. doi:10.1007/s10336-015-1317-z
  • Manunza, A., Cardoso, T. F., Noce, A., Martínez, A., Pons, A., Bermejo, L. A., . . . Amills, M. (2016). Population structure of eleven spanish ovine breeds and detection of selective sweeps with BayeScan and hapFLK. Scientific Reports, 6 doi:10.1038/srep27296
  • Marchewka, J., Beltrán de Heredia, I., Averós, X., Ruiz, R., Zanella, A. J., Calderón Díaz, J. A., & Estevez, I. (2016). Behaviour of tail-docked lambs tested in isolation. Irish Journal of Agricultural and Food Research, 55(2), 192-199. doi:10.1515/ijafr-2016-0019
  • Orihuela, A., Averós, X., Solano, J., Clemente, N., & Estevez, I. (2016). Effect of available space and previous contact in the social integration of saint croix and suffolk ewes. Journal of Animal Science, 94(3), 1238-1249. doi:10.2527/jas.2015-9879
  • Peris, B., Beltrán de Heredia, I., & Ruiz, R. (2016). Animal welfare legislative regulations in small ruminants farms in spain. Small Ruminant Research, 142, 58-60. doi:10.1016/j.smallrumres.2016.05.008
  • Rodriguez-Aurrekoetxea, A., & Estevez, I. (2016). Use of space and its impact on the welfare of laying hens in a commercial free-range system. Poultry Science, 95(11), 2503-2513. doi:10.3382/ps/pew238
  • Sassi, N. B., Averós, X., & Estevez, I. (2016). Technology and poultry welfare. Animals, 6(10) doi:10.3390/ani6100062


  • Rodriguez-Aurrekoetxea, Ane; Leone, Erin Hoerl; Estevez, Inma Effects of panels and perches on the behaviour of commercial slow-growing free-range meat chickens APPLIED ANIMAL BEHAVIOUR SCIENCE 165 103 111
  • Montalban, I. A.; Garcia-Mendiguren, O.; Goicoa, T.; Ugarte, M. D.; Moncalean, P. Cold storage of initial plant material affects positively somatic embryogenesis in Pinus radiata NEW FORESTS 46 309 317
  • Averos, Xavier; Marchewka, Joanna; de Heredia, Ignacia Beltran; Zanella, Adroaldo Jose; Ruiz, Roberto; Estevez, Inma Space allowance during gestation and early maternal separation: Effects on the fear response and social motivation of lambs APPLIED ANIMAL BEHAVIOUR SCIENCE 163 98 109
  • Liste, Guiomar; Campderrich, Irene; Beltran de Heredia, Ignacia; Estevez, Inma The relevance of variations in group size and phenotypic appearance on the behaviour and movement patterns of young domestic fowl APPLIED ANIMAL BEHAVIOUR SCIENCE 163 144 157
  • Marchewka, Joanna; Estevez, Inma; Vezzoli, Giuseppe; Ferrante, Valentina; Makagon, Maja M. The transect method: a novel approach to on-farm welfare assessment of commercial turkeys POULTRY SCIENCE 94 7 16


  • Rodriguez-Aurrekoetxea, Ane; Leone, Erin Hoerl; Estevez, Inma Environmental complexity and use of space in slow growing free range chickens APPLIED ANIMAL BEHAVIOUR SCIENCE 161 86 94
  • Liste, Guiomar; Asher, Lucy; Broom, Donald M. When a Duck Initiates Movement, Do Others Follow? Testing Preference in Groups ETHOLOGY 120 1199 1206
  • Amores, Gustavo; Virto, Mailo; Isabel Najera, Ana; Mandaluniz, Nerea; Arranz, Josune; Angeles Bustamante, Maria; Valdivielso, Izaskun; Carlos Ruiz de Gordoa, Juan; Garica-Rodriguez, Aser; Barron, Luis J. R.; de Renobales, Mertxe Rapeseed and sunflower oilcake as supplements for dairy sheep: animal performance and milk fatty acid concentrations JOURNAL OF DAIRY RESEARCH 81 410 416
  • Marin, R. H.; Liste, M. G.; Campderrich, I.; Estevez, I. The impact of phenotypic appearance on body weight and egg production in laying hens: A group-size-and experience-dependent phenomenon POULTRY SCIENCE 93 1623 1635
  • Legarra, A.; Baloche, G.; Barillet, F.; Astruc, J. M.; Soulas, C.; Aguerre, X.; Arrese, F.; Mintegi, L.; Lasarte, M.; Maeztu, F.; Beltran de Heredia, I.; Ugarte, E. Within- and across-breed genomic predictions and genomic relationships for Western Pyrenees dairy sheep. breeds Latxa, Manech, and Basco-Bearnaise JOURNAL OF DAIRY SCIENCE 97 3200 3212
  • Averos, Xavier; Lorea, Areta; Beltran de Heredia, Ignacia; Arranz, Josune; Ruiz, Roberto; Estevez, Inma Space Availability in Confined Sheep during Pregnancy, Effects in Movement Patterns and Use of Space PLOS ONE 9
  • Rodriguez-Aurrekoetxea, Ane; Estevez, Inma Aggressiveness in the domestic fowl: Distance versus ‘attitude’ APPLIED ANIMAL BEHAVIOUR SCIENCE 153 68 74
  • Benhissi, H.; Garcia-Rodriguez, A.; Beltran de Heredia, I. Effect of type and inclusion level of cold-pressed oilseed cakes on in vitro rumen fermentation ANIMAL PRODUCTION SCIENCE 54 1709 1713
  • Averos, Xavier; Lorea, Areta; Beltran de Heredia, Ignacia; Ruiz, Roberto; Marchewka, Joanna; Arranz, Josune; Estevez, Inma The behaviour of gestating dairy ewes under different space allowances APPLIED ANIMAL BEHAVIOUR SCIENCE 150 17 26


  • Gonzalez, Matilu; Averos, Xavier; Beltran de Heredia, Ina; Ruiz, Roberto; Arranz, Josune; Estevez, Inma The effect of social buffering on fear responses in sheep (Ovis aries) APPLIED ANIMAL BEHAVIOUR SCIENCE 149 13 20
  • Guzman, D. A.; Pellegrini, S.; Kembro, J. M.; Marin, R. H. Social interaction of juvenile Japanese quail classified by their permanence in proximity to a high or low density of conspecifics POULTRY SCIENCE 92 2567 2575
  • Marchewka, J.; Watanabe, T. T. N.; Ferrante, V.; Estevez, I. Welfare assessment in broiler farms: Transect walks versus individual scoring POULTRY SCIENCE 92 2588 2599
  • Vitezica, Z. G.; Beltran de Heredia, I.; Ugarte, E. Short communication: Analysis of association between the prion protein (PRNP) locus and milk traits in Latxa dairy sheep JOURNAL OF DAIRY SCIENCE 96 6079 6083
  • Menendez-Buxadera, A.; Carabano, M. J.; Gonzalez-Recio, O.; Cue, R. I.; Ugarte, E.; Alenda, R. Reaction norm of fertility traits adjusted for protein and fat production level across lactations in Holstein cattle JOURNAL OF DAIRY SCIENCE 96 4653 4665
  • Aldezabal, A.; Mandaluniz, N.; Laskurain, N. A. Gorse (Ulex spp.) use by ponies in winter: Is the spatial pattern of browsing independent of the neighbouring vegetation? GRASS AND FORAGE SCIENCE 68 49 58
  • Liste, G.; Kirkden, R. D.; Broom, D. M. A commercial trial evaluating three open water sources for farmed ducks: effects on water usage and water quality BRITISH POULTRY SCIENCE 54 24 32


  • Gonzalez-Recio, Oscar; Ugarte, Eva; Bach, Alex Trans-Generational Effect of Maternal Lactation during Pregnancy: A Holstein Cow Model PLOS ONE 7
  • Virto, Mailo; Bustamante, Marian; Ruiz de Gordoa, Juan Carlos; Amores, Gustavo; Fernandez-Caballero, Paula N.; Mandaluniz, Nerea; Arranz, Josune; Najera, Ana I.; Albisu, Marta; Perez-Elortondo, Francisco J.; Barron, Luis J. R.; de Renobales, Mertxe Interannual and geographical reproducibility of the nutritional quality of milk fat from commercial grazing flocks JOURNAL OF DAIRY RESEARCH 79 485 494
  • Karoui, S.; Diaz, C.; Gonzalez-Marin, C.; Amenabar, M. E.; Serrano, M.; Ugarte, E.; Gosalvez, J.; Roy, R.; Lopez-Fernandez, C.; Carabano, M. J. Is sperm DNA fragmentation a good marker for field AI bull fertility? JOURNAL OF ANIMAL SCIENCE 90 2437 2449
  • Averos, X.; Brossard, L.; Dourmad, J. Y.; de Greef, K. H.; Edwards, S. A.; Meunier-Salauen, M. C. Meta-analysis on the effects of the physical environment, animal traits, feeder and feed characteristics on the feeding behaviour and performance of growing-finishing pigs ANIMAL 6 1275 1289
  • Ventura, Beth A.; Siewerdt, Frank; Estevez, Inma Access to Barrier Perches Improves Behavior Repertoire in Broilers PLOS ONE 7
  • Diez-Unquera, B.; Ripoll-Bosch, R.; Ruiz, R.; Villalba, D.; Molina, E.; Joy, M.; Olaizola, A.; Bernues, A. Indicators of sustainability in pasture-based livestock systems ANIMAL FARMING AND ENVIRONMENTAL INTERACTIONS IN THE MEDITERRANEAN REGION 129 137
  • Liste, G.; Kirkden, R. D.; Broom, D. M. A commercial trial evaluating three open water sources for farmed ducks: effects on health and production. BRITISH POULTRY SCIENCE 53 576 584
  • Ripoll-Bosch, R.; Diez-Unquera, B.; Ruiz, R.; Villalba, D.; Molina, E.; Joy, M.; Olaizola, A.; Bernues, A. An integrated sustainability assessment of mediterranean sheep farms with different degrees of intensification AGRICULTURAL SYSTEMS 105 46 56
  • de Renobales, M.; Amores, G.; Arranz, J.; Virto, M.; Barron, L. J. R.; Bustamante, M. A.; Ruiz de Gordoa, J. C.; Najera, A. I.; Valdivielso, I.; Abilleira, E.; Beltran de Heredia, I.; Perez-Elortondo, F. J.; Ruiz, R.; Albisu, M.; Mandaluniz, N. Part-time grazing improves sheep milk production and its nutritional characteristics FOOD CHEMISTRY 130 90 96


  • Miller, Curtis; Christman, Mary C.; Estevez, Inma Movement in a confined space: Estimating path tortuosity APPLIED ANIMAL BEHAVIOUR SCIENCE 135 13 23
  • Andersen, Inger Lise; Tonnesen, Hege; Estevez, Inma; Cronin, Greg M.; Boe, Knut Egil The relevance of group size on goats’ social dynamics in a production environment APPLIED ANIMAL BEHAVIOUR SCIENCE 134 136 143
  • Bernues, A.; Ruiz, R.; Olaizola, A.; Villalba, D.; Casasus, I. Sustainability of pasture-based livestock farming systems in the European Mediterranean context: Synergies and trade-offs LIVESTOCK SCIENCE 139 44 57
  • Mandaluniz, Nerea; Aldezabal, Arantza; Oregui, Luis M. Diet selection of beef cattle on Atlantic grassland-heathland mosaic: Are heathers more preferred than expected? LIVESTOCK SCIENCE 138 49 55
  • Callicrate, Taylor Eilers; Siewerdt, Frank; Koutsos, Elizabeth; Estevez, Inma Personality traits and the effects of DHA supplementation in the budgerigar (Melopsittacus undulatus) APPLIED ANIMAL BEHAVIOUR SCIENCE 130 124 134
  • David, I.; Carabano, M. J.; Tusell, L.; Diaz, C.; Gonzalez-Recio, O.; Lopez de Maturana, E.; Piles, M.; Ugarte, E.; Bodin, L. Product versus additive model for studying artificial insemination results in several livestock populations JOURNAL OF ANIMAL SCIENCE 89 321 328


  • Garcia-Rodriguez, A.; Goiri, I.; Flores, G.; Oregui, L. M. Effect of incubation medium nitrogen content on gas production and prediction of apparent organic matter digestibility of grass silage ITEA-INFORMACION TECNICA ECONOMICA AGRARIA 106 208 220
  • Horcada-Ibanez, Alberto; Beriain-Apesteguia, Maria J.; Chasco-Ugarte, Julia; Indurain-Banez, Gregorio; Purroy-Unanua, Antonio EFFECT OF SLAUGHTER WEIGHT ON FAT COMPOSITION IN LACHA LAMBS AGROCIENCIA 44 643 654
  • Ventura, B. A.; Siewerdt, F.; Estevez, I. Effects of barrier perches and density on broiler leg health, fear, and performance POULTRY SCIENCE 89 1574 1583
  • Goiri, I.; Indurain, G.; Insausti, K.; Sarries, V.; Garcia-Rodriguez, A. Ruminal biohydrogenation of unsaturated fatty acids in vitro as affected by chitosan ANIMAL FEED SCIENCE AND TECHNOLOGY 159 35 40
  • Ramon, M.; Legarra, A.; Ugarte, E.; Garde, J. J.; Perez-Guzman, M. D. Economic weights for major milk constituents of Manchega dairy ewes JOURNAL OF DAIRY SCIENCE 93 3303 3309
  • Villalba, D.; Ripoll, G.; Ruiz, R.; Bernues, A. Long-term stochastic simulation of mountain beef cattle herds under diverse management strategies AGRICULTURAL SYSTEMS 103 210 220
  • Estevez, I.; Mallapur, A.; Miller, C.; Christman, M. C. Short- and long-term movement patterns in complex confined environments in broiler chickens: The effects of distribution of cover panels and food resources POULTRY SCIENCE 89 643 650
  • Goiri, I.; Oregui, L. M.; Garcia-Rodriguez, A. Use of chitosans to modulate ruminal fermentation of a 50:50 forage-to-concentrate diet in sheep JOURNAL OF ANIMAL SCIENCE 88 749 755
  • Leone, Erin Hoerl; Christman, Mary C.; Douglass, Larry; Estevez, Inma Separating the impact of group size, density, and enclosure size on broiler movement and space use at a decreasing perimeter to area ratio BEHAVIOURAL PROCESSES 83 16 22
  • de Villareal, M. P.; Estevez, I. The behaviour of laying hens in commercial aviary systems JOURNAL OF DAIRY SCIENCE 93 250 251