1
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Energia digestível em rações para porcas primíparas em lactação Translated title: Digestible energy in the diet of primiparous lactating sows

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Utilizaram-se 48 porcas primíparas, de genética PIC, com média de peso de 185,03±15,78kg, para avaliar diferentes níveis de energia digestível (3.350, 3.500, 3.650 e 3.800kcal/kg) na ração, durante a lactação (19,98±1,04 dias). Utilizou-se o delineamento experimental inteiramente casualizado, com quatro tratamentos e 12 repetições, sendo a porca considerada a unidade experimental. O consumo total de ração não variou entre os animais dos tratamentos, sendo que as porcas consumiram em média 4,0kg de ração por dia. O consumo de energia digestível aumentou de forma linear, de acordo com o nível de energia na ração. Não se observou efeito do nível de energia da ração sobre a mobilização de reserva corporal, as características reprodutivas e o nível de insulina no soro das porcas. Observou-se aumento linear do ganho de peso dos leitões em função do consumo de energia das porcas. Conclui-se que porcas primíparas em lactação exigem 3.800kcal/kg de ração, correspondente a um consumo de 14.307kcal/dia.

          Translated abstract

          Forty-eight primiparous sows (PIC), weighting in average of 185.03±15.78kg, were used to evaluate different levels of digestible energy (3,350; 3,500; 3,650 and 3,800 kcal/kg) during lactation (19.98±1.04 days). A completely randomized design was used with four treatments, 12 replicates, being the sow considered as the experimental unit. The sows were daily fed with 4.0kg of the experimental diet. Energy intake increased linearly, according to the level of digestible energy in the diet. The energy level in the diet did not affect the mobilization of corporal reserve, the reproductive characteristics and the levels of insulin of the serum of the sows. Weight gain of piglets and litter increased linearly, according to the dietary energy levels. It was concluded that primiparous lactating sows need to intake at least 14,307kcal/day.

          Related collections

          Most cited references22

          • Record: found
          • Abstract: found
          • Article: not found

          Estimation of sow milk nutrient output.

          Ten replicates of two littermate gilts were used during a 21-d lactation in order to calculate relationships between milk nutrient intake and piglet growth rate and composition of gain. Gilts were fed 14.2 or 10.4 Mcal ME/d and litter size was standardized to 9 or 10 piglets. Piglets had no access to creep feed. Milk production was measured on 10 sucklings over 12 h on d 1, 5, 9, 13, 17 and 21 by the weigh-suckle-weigh method. Heat production of the piglets was measured (RQ method) on the same days in a confinement chamber. Milk composition was determined on the days following milk production measurements. Four to ten piglets/litter were slaughtered at weaning and their body composition was determined. Milk nutrient production during part of lactation was related closely to piglet weight gain and body weight (R2 = .80 to .96). Milk DM, energy and N output over the entire lactation were predicted from piglet ADG (R2 = .87 to .90) when, for each litter, the difference between energy in piglet daily weight gain measured by the slaughter technique and energy in piglet daily weight gain estimated by the RQ method was included in the model. This variable corrects for milk production measurement errors. The relationships were slightly improved, especially for energy output, when the composition of piglet weight gain was taken into account (R2 = .93 to .97).
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Energy balance of lactating primiparous sows as affected by feeding level and dietary energy source.

            The effects of feeding level and major dietary energy source used during lactation on sow milk composition, piglet body composition, and energy balance of sows were determined. During a 21-d lactation, 48 primiparous sows were fed either a Fat-rich (134.9 g/kg fat; 196.8 g/kg carbohydrate) or a Starch-rich (33.2 g/kg fat; 380.9 g/kg carbohydrate) diet at either a High (44 MJ NE/d; 1,050 g protein/d) or a Low (33 MJ NE/d; 790 g protein/d) feeding level. Within each feeding level, the two diets were fed to provide an isocaloric and isonitrogenous intake. At the Low feeding level, no differences in milk production, milk composition, or piglet body composition were found as a result of feeding the two dietary energy sources. However, at the High feeding level, sows fed the Fat-rich diet produced higher milk fat (8.4 vs 6.9%) and milk energy (5.38 vs 4.77 kJ/g) concentrations and a higher piglet body fat concentration (152.1 vs 135.4 g/kg) than sows fed the Starch-rich diet. At the Low feeding level, the energy balance (d 6 to d 20) of the sows was similar when fed either the Fat- or the Starch-rich diet (-558 and -515 kJ x BW(-.75) x d(-1)), but at the High feeding level, the energy balance was more negative in sows fed the Fat than those fed the Starch-rich diet (-544 vs -372 kJ x BW(-.75) x d(-1)). This suggests that at the High feeding level, dietary energy in the form of fat is preferentially used for milk fat synthesis, resulting in growth and in fatter piglets. Alternatively, at the High feeding level, Starch as the major energy source is used only for growth of the piglets, as confirmed by protein deposition, and also results in a less-negative energy balance for the sows. From this experiment, it can be concluded that effects of substituting cornstarch for fat in the diet of lactating sows on milk composition, piglet body composition, and energy balance of the sows are dependent on feeding level.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Feeding lactating primiparous sows to establish three divergent metabolic states: III. Milk production and pig growth.

                Bookmark

                Author and article information

                Journal
                abmvz
                Arquivo Brasileiro de Medicina Veterinária e Zootecnia
                Arq. Bras. Med. Vet. Zootec.
                Universidade Federal de Minas Gerais, Escola de Veterinária (Belo Horizonte, MG, Brazil )
                0102-0935
                1678-4162
                April 2006
                : 58
                : 2
                : 234-241
                Affiliations
                [02] Viçosa MG orgnameUniversidade Federal de Viçosa
                [01] BA orgnameFIOCRUZ orgdiv1Centro de Pesquisas Gonçalo Moniz
                Article
                S0102-09352006000200012 S0102-0935(06)05800212
                936a35f0-ae8a-4610-8ca8-9795bbb17522

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 26 September 2005
                : 17 November 2004
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 8
                Product

                SciELO Brazil

                Categories
                Zootecnia e Tecnologia e Inspeção de Produtos de Origem Animal

                lactação,gordura de coco,energia,reprodução,sow,litter,reproduction,energy,coconut oil,lactation,porca,leitão

                Comments

                Comment on this article