Dietas insulina-estimulantes para las hembras porcina
- Silva, M.C. 1
- Muñoz Luna, A. 2
- Kiefer, C. 1
- Ramis Vidal, G. 2
- Alencar, S.A.S. 1
- Cambra-Bort, J.M. 2
- 1 Programa de Postgrado en Ciencia Animal. Universidad Federal de Mato Grosso do Sul. Brasil.
- 2 Departamento de Producción animal. Facultad de Veterinaria. Universidad de Murcia. España.
ISSN: 0004-0592, 1885-4494
Year of publication: 2017
Volume: 66
Issue: 256
Pages: 611-617
Type: Article
More publications in: Archivos de zootecnia
Abstract
This bibliographic review aims to introduce the effects of insulin modulated by diet in the productive and reproductive efficiency of sows. Insulin is an hormone that plays an intermediary role between nutrition and reproduction, causing the synthesis of gonadotropins, FSH and LH, through the direct effects of ovaries. Endogenous insulin levels may be influenced by nutrients and energy source. Scientific studies have shown that diets, in which lipids are the main source of energy, do not show improvements in the body condition of sows during lactation and reproductive development after weaning. In fact, catabolic condition can get worse due to the increase of fat in milk production. Moreover, increasing the carbohydrate content during lactation can improve energy balance, gonadotropin secretion and insulin and glucose profiles. Research results show that it is possible to modulate the levels of plasma insulin by consuming complex carbohydrates such as starch. This nutrient can produce longer glucose peaks compared to simple carbohydrates such as dextrose or saccharose carbon, promoting follicular oocyte development, from the synthesis of luteinizing hormone at an ovaric level.