IX Premio Andrés Pintaluba, S.A. “Carlos Luis de Cuenca y Esteban” efecto de la utilización de superdosis de fitasas en dietas de transición con minerales quelados, y sus efectos a nivel productivo

  1. Irene María Alonso Garrido 1
  2. Antonio Palomo Yagüe 2
  3. Gustavo Cordero González 3
  1. 1 Técnico especialista de porcino Cargill.
  2. 2 Profesor asociado Medicina Interna UCM
  3. 3 Responsable Técnico de porcino Abvista EMEA.
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Journal:
Anales de la Real Academia de Ciencias Veterinarias

Year of publication: 2021

Volume: 29

Issue: 29

Pages: 58-99

Type: Article

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Abstract

The current sows, have suffered a genetic selection focus on prolificity. This has supposed an increase of 0,2 alive born piglets/sow/year since 20 years. This has produced a bigger heterogeneity on individual weight in live born pigs and a decrease of birth weight; and also less maturity of piglets, because they are leaner and with less fat composition, which means lower glycogen reserves. On the other side, the growth of prolificity is correlated in a positive way with an increase of total born and stillbirth. This increase of stillbirth is very associated with longer time of parturition. Besides, the potential milk production from sows has increased, but not their appetite; so there are sows with a lower capacity of voluntary consume, called residual feed intake. This means a higher mobilization of body reserves in the lactation time. As a result, the influence of nutrition in prolificity begins from the birth of young sows, his maturity, gestation, lactation till next insemination. The increase in production has created higher nutrient requirements to supply the need of foetus growth, milk production and maintenance sow. One of the keys is the utilisation of organic mineral sources, known as chelated minerals. They have higher bioavailability to the sow to optimize the maximum genetic potential. The objectives of the present study using 52 sows (26 control group, 26 superdosing group) were to determine if the addition of 2500 FTU of phytase in peripartum diet with chelated mineral sources; and how it affects sow productivity and serological markers around parturition (urea, parathormone, cortisol, and calcium). Results: The weaned weight from superdosing piglets is higher (P<0,05) and also the weaned average diary gained (P<0,05). This may suggest that the use of superdosing phytase in transition diet with chelated mineral sources improve the productivity of sows

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