11
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Dinámica de la Concentración de Calcio Sanguíneo durante el Periparto y su Relación con Producción y Reproducción en un Hato de Vacas Jersey Translated title: Dynamics of blood calcium concentration during peripartum and its relationship with production and reproduction in a Jersey cow herd

      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

          ResumenEl objetivo de esta investigación fue describir la dinámica de la concentración de calcio en suero sanguíneo durante el periparto en un hato de vacas Jersey de Oreamuno, Cartago, Costa Rica y su relación con indicadores productivos y reproductivos. Un total de 161 vacas fueron muestreadas, su dieta preparto consistió en pastoreo de kikuyo (Kikuyuocloa clandestina) (15,6% de PC, 1,65 Mcal de ENL (3X), 0,35% de Ca, 0,32% de Mg, 3,5% de K), suplementado con 4 kg.vaca-1.día-1 de alimento balanceado bajo en calcio (88% MS, 14% PC, 0,2% Ca, 0,42% Mg y 1,38% K), y 1 kg de heno (82,3% MS, 5,1% PC, 0,4% Ca, 0,35% Mg y 1,8% K).día-1. Inmediatamente después del parto, las vacas fueron suplementados con 1 kg de alimento balanceado (87,5% MS, 18,6% PC, 0,90% Ca, 0,42% Mg y 1,38% K) por cada 2,5 kg de leche. Se tomaron muestras de sangre de los vasos sanguíneos coccígeos desde 7 días preparto hasta 7 días posparto. Las concentraciones de Ca en las muestras de sangre fueron determinadas por espectrofotometría de absorción atómica. La concentración media mínima de calcio durante el estudio se obtuvo el día del parto (7,27 mg.dl-1) y en promedio las vacas superaron el umbral de hipocalcemia subclínica (8,0 mg.dl-1) hasta el día 7 posparto. La concentración sanguínea de calcio no se asoció estadísticamente a indicadores reproductivos. Vacas multíparas con concentraciones de calcio inferiores a 5,5 mg.dl-1 el día del parto tuvieron estadísticamente (p<0,05) menor: producción por día, producción total y longitud de lactancia, en relación con vacas multíparas con concentraciones de calcio mayor o igual a 5,5 mg.dl-1. Estos hallazgos indican que la concentración de calcio sanguíneo durante el periparto es un factor asociado al desempeño productivo en vacas multíparas.

          Translated abstract

          AbstractThe aim of this research was to describe the dynamics of calcium concentration in blood serum during peripartum in a Jersey cow herd from Oreamuno, Cartago, Costa Rica and its relationship with productive and reproductive indicators. A total of 161 cows were sampled, their pre-partum diet consisted grazing of kikuyu (Kikuyuocloa clandestina) (15.6% CP, 1.65 Mcal NEL (3X), 0.35% Ca, 0.32% Mg, 3.5% K) supplemented with 4 kg.cow-1.day-1 of a low Ca balanced grain mix (88% DM, 14% CP, 0.2% Ca, 0.42% Mg and 1.38% K), and 1 kg of hay (82.3% DM, 5.1% CP, 0.4% Ca, 0.35% Mg and 1.8% K).day-1. Immediately after calving, cows were supplemented with 1 kg of a balanced grain mix (87.5% DM, 18.6% CP, 0.90% Ca, 0.42% Mg and 1.38% K) per each 2.5 kg of milk. Blood samples were taken from the coccygeal vessels since 7 days before calving until 7 days after calving. Ca concentrations in blood samples were determined by atomic absorption spectrophotometry. The average minimum concentration of Ca during the study was obtained on calving day (7.27 mg.dl-1) and on average the cows exceed the threshold of subclinical hypocalcemia (8.0 mg.dl-1) until day 7 after calving. The blood calcium concentration wasn’t statistically associated to reproductive indicators. Multiparous cows with calcium concentrations lower than 5.5 mg.dl-1 on calving day had statistically (p<0.05) lower: daily milk, actual milk yield and lactation length compared to multiparous cows with blood calcium concentrations higher than or equal to 5.5 mg.dl-1. These findings indicate that blood calcium concentration during peripartum is an associated factor to yield performance in multiparous cows.

          Related collections

          Most cited references37

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

          Physiological changes at parturition and their relationship to metabolic disorders.

          Most of the metabolic diseases of dairy cows-milk fever, ketosis, retained placenta, and displacement of the abomasum-occur within the first 2 wk of lactation. The etiology of many of those metabolic diseases that are not clinically apparent during the first 2 wk of lactation, such as laminitis, can be traced back to insults that occurred during early lactation. In addition to metabolic disease, the overwhelming majority of infectious disease, in particular mastitis, becomes clinically apparent during the first 2 wk of lactation. Three basic physiological functions must be maintained during the periparturient period if disease is to be avoided: adaptation of the rumen to lactation diets that are high in energy density, maintenance of normocalcemia, and maintenance of a strong immune system. The incidence of both metabolic and infectious diseases is greatly increased whenever one or more of these physiological functions are impaired. This paper discusses the etiological role of each of these factors in the development of common diseases encountered during the periparturient period.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Prevalence of subclinical hypocalcemia in dairy herds.

            The prevalence of subclinical hypocalcemia in the transition cow is unknown. Cows with subclinical hypocalcemia have no clinical signs of hypocalcemia but may be more susceptible to other diseases. The objective of this study was to determine the prevalence of subclinical hypocalcemia in the US dairy herds. As a part of the United States Department of Agriculture's National Animal Health Monitoring System 2002 Dairy study, serum samples were collected from 1462 cows within 48 h of parturition. The samples were sorted by lactation number: 1st (n=454), 2nd (n=447), 3rd (n=291), 4th (n=166), 5th (n=72), and 6th (n=32). Subclinical hypocalcemia ( 2.0 mM had significantly lower serum non-esterified fatty acids indicating better energy balance than those with subclinical hypocalcemia. Subclinical hypocalcemia may make cows more susceptible to secondary diseases but more research will be required to determine if this is true. Published by Elsevier Ltd.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              The association of serum metabolites with clinical disease during the transition period.

              The objective of this observational field study was to validate the relationship of serum concentrations of nonesterified fatty acids (NEFA), β-hydroxybutyrate (BHBA), and calcium with disease in early lactation across different management systems. Fifty-five Holstein freestall dairy herds located across the United States and Canada were selected and visited weekly for blood sample collection from 2,365 cows. Only diseases that were consistently recorded across herds and blood samples collected before the disease occurred were considered. Metabolite concentrations in serum in wk -1 relative to calving were considered as predictors of retained placenta (RP) and metritis, and metabolite concentrations in serum in wk -1 and wk +1 relative to calving were considered as predictors of displaced abomasum (DA). For each disease, each metabolite, and week of sampling in the case of DA, a critical threshold was calculated based on the highest combined sensitivity and specificity and used to categorize the serum concentrations into high and low risk categories. Multivariable logistic regression models were built for each disease of interest and week of sampling, considering cow as the experimental unit and herd as a random effect. Cows with precalving serum NEFA concentrations ≥ 0.3 mEq/L were more likely to develop RP [odds ratio (OR) = 1.8; 95% confidence interval (CI) = 1.3 to 2.6] and metritis (OR = 1.8; 95% CI = 1.5 to 2.9) after calving than cows with lower NEFA concentrations. Precalving NEFA ≥ 0.5 mEq/L (OR = 2.4; 95% CI = 1.5 to 3.7), postcalving NEFA ≥ 1.0 mEq/L (OR = 2.7; 95% CI = 1.7 to 4.4), and postcalving calcium ≤ 2.2 mmol/L (OR = 3.1; 95% CI = 1.9 to 5.0) were associated with subsequent risk of DA. In conclusion, elevated serum NEFA concentrations within 1 wk before calving were associated with increased risk of RP, metritis, and DA after calving. Serum NEFA and calcium concentrations in the 2 wk around calving in combination were associated with the risk of DA.
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                ac
                Agronomía Costarricense
                Agron. Costarricense
                Universidad de Costa Rica. Colegio de Ingenieros y Agrónomos. Ministerio de Agricultura y Ganadería (San Pedro de Montes de Oca, San José, Costa Rica )
                0377-9424
                December 2017
                : 41
                : 2
                : 7-16
                Affiliations
                [1] orgnameUniversidad de Costa Rica orgdiv1Escuela de Zootecnia orgdiv2Centro de Investigación en Nutrición Animal Costa Rica alejandro.saboriomontero@ 123456ucr.ac.cr
                [3] orgnameUniversidad de Costa Rica orgdiv1Escuela de Zootecnia orgdiv2Centro de Investigación en Nutrición Animal Costa Rica
                [2] orgnameUniversidad de Costa Rica orgdiv1Escuela de Zootecnia orgdiv2Centro de Investigación en Nutrición Animal Costa Rica
                Article
                S0377-94242017000200007
                c2be88d2-87ac-4260-98c8-8b8ecb59f160

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 39, Pages: 10
                Product

                SciELO Costa Rica


                vacas lecheras en pastoreo,Subclinical hypocalcemia,clinical hypocalcemia,grazing dairy cows,Hipocalcemia subclínica,hipocalcemia clínica

                Comments

                Comment on this article