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Título: | Lactation under induced five-month delay reproduction in Iberian red deer (Cervus elaphus hispanicus) |
Autor: | Landete-Castillejos, Tomás CSIC ORCID ; García, Andrés J. CSIC ORCID ; Gómez, José Ángel; Berruga, María Isabel CSIC ORCID; Gallego, Laureano CSIC ORCID | Fecha de publicación: | 2004 | Editor: | Blackwell Publishing | Citación: | Journal of Experimental Zoology 301(3): 261-265 (2004) | Resumen: | In Iberian deer, calf birth date affects both milk production and composition, as well as the weight change of hind during lactation and calf growth. This study examines a five-month induced delay in calving (autumn group) in a group of 19 Iberian hinds compared to a group of 13 standard calving hinds (spring group). Fertility in the autumn group was half that of the spring one. From the former, a further two calves out of six died before or soon after birth. Successfully lactating hinds showed a greater concentration in protein, fat and lactose (P < 0.001), but did not differ from spring group in total milk yield, calf gain or weight change of hinds during lactation. However, after correcting for the greater calf or hind body weight at calving of the autumn group, this group showed lower values for these variables than the spring group. Results show that at least in Iberian deer, counter-season reproduction is possible, and that the effects on lactation variables are similar to those of a natural delay in calving. | Versión del editor: | https://doi.org/10.1002/jez.a.20028 | URI: | http://hdl.handle.net/10261/282948 | DOI: | 10.1002/jez.a.20028 | ISSN: | 0022-104X |
Aparece en las colecciones: | (IREC) Artículos |
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