Reference number : GC-2017-Q4-00713, amendment number : , agreement type : G, recipient legal name : Guay, Frédéric (Université Laval), recipient country : CA, recipient province : nan, recipient city : Quebec|Québec, recipient postal code : nan, program name english : Collaborative Research and Development Grants - Project, program name french : Subventions de recherche et développement coopérative - projet, program purpose english : The general purpose of this project is to study metabolic status of sows and nutritional strategy around the_x000D_
farrowing on lactating sow performances. Specifically, the objectives are 1- to evaluate the effect of dietary_x000D_
strategy on incidence of stillbirth in relation with duration of farrowing and birth interval; 2- to determine the_x000D_
relationship between the metabolic status of the lactating sow before and after farrowing as well as during_x000D_
lactation, and the growth of the litter during lactation, feed intake of lactating sows and reproductive_x000D_
performance at the next litter; 3- to develop a model from metabolic status and body parameters of sows to_x000D_
predict feed intake, litter growth and reproductive performance at the next litter. In fact, even if it is known that_x000D_
feed intake of lactating sows can affect their litter performances and long-term reproductive performances, the_x000D_
effect of metabolic status (lipid and protein mobilisation and glucose utilization) of sows on the feed intake are_x000D_
not clearly known. The pre-farrowing conditions of sows, like over fat deposition and constipation, are known_x000D_
to affect farrowing process, and stillbirth and alive piglets per litter, but other factors, as calcium status, which_x000D_
could affect uterine contraction and then dystocia, may be determining in farrowing process and then piglet_x000D_
survival around the farrowing. The results obtained in this project will have a short and long-term impact on_x000D_
sow performances, including a reducing stillbirth, better piglet survival and litter growth. This project will also_x000D_
open several areas of investigation that will allow to understand the underlying control mechanisms of feed_x000D_
intake in lactating sows, which is a determining factors of litter performances and long-term reproductive_x000D_
performances. Finally, by developing new predicting model this project will contribute to using more_x000D_
efficiently farm resources and develop farming techniques to maintain the competitiveness of Canadian swine_x000D_
industry., program purpose french : The general purpose of this project is to study metabolic status of sows and nutritional strategy around the_x000D_
farrowing on lactating sow performances. Specifically, the objectives are 1- to evaluate the effect of dietary_x000D_
strategy on incidence of stillbirth in relation with duration of farrowing and birth interval; 2- to determine the_x000D_
relationship between the metabolic status of the lactating sow before and after farrowing as well as during_x000D_
lactation, and the growth of the litter during lactation, feed intake of lactating sows and reproductive_x000D_
performance at the next litter; 3- to develop a model from metabolic status and body parameters of sows to_x000D_
predict feed intake, litter growth and reproductive performance at the next litter. In fact, even if it is known that_x000D_
feed intake of lactating sows can affect their litter performances and long-term reproductive performances, the_x000D_
effect of metabolic status (lipid and protein mobilisation and glucose utilization) of sows on the feed intake are_x000D_
not clearly known. The pre-farrowing conditions of sows, like over fat deposition and constipation, are known_x000D_
to affect farrowing process, and stillbirth and alive piglets per litter, but other factors, as calcium status, which_x000D_
could affect uterine contraction and then dystocia, may be determining in farrowing process and then piglet_x000D_
survival around the farrowing. The results obtained in this project will have a short and long-term impact on_x000D_
sow performances, including a reducing stillbirth, better piglet survival and litter growth. This project will also_x000D_
open several areas of investigation that will allow to understand the underlying control mechanisms of feed_x000D_
intake in lactating sows, which is a determining factors of litter performances and long-term reproductive_x000D_
performances. Finally, by developing new predicting model this project will contribute to using more_x000D_
efficiently farm resources and develop farming techniques to maintain the competitiveness of Canadian swine_x000D_
industry., agreement title english : Impact of metabolic status of sows around the farrowing on stillbirth, pre-weaning mortality and as diagnostic tools of the metabolic state of lactating sows, agreement title french : Impact of metabolic status of sows around the farrowing on stillbirth, pre-weaning mortality and as diagnostic tools of the metabolic state of lactating sows, agreement number : CRDPJ, agreement value : 46332.0, agreement start date : 2018-03-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2019-2020)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2019-2020)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada