Effects of physiological state, mass change and diet on plasma metabolite profiles in the western sandpiper<i>Calidris mauri</i>

Seaman, Dana A. Acevedo; Guglielmo, Christopher G.; Williams, Tony

doi:10.1242/jeb.01451

Cited by 58 publications

(63 citation statements)

References 28 publications

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“…Our results correspond with the findings in a previous long-term study on the Red Knot that found no correlation between triglyceride concentrations (samples taken immediately after capture) and body-mass change (Jenni-Eiermann et al 2002). In the Western Sandpiper, residuals of triglyceride (from the relationship with body mass) are also not correlated with bodymass change (calculated over a 2-day period; Seaman et al 2005). In an earlier study, however, residual triglyceride concentrations did correlate with short-term body-mass change but not with weekly body-mass change (Williams et al 1999).…”

Section: Triglyceridesmentioning

confidence: 82%

“…Food (trout pellets, Trouvit Classic 2P, Skretting, Hendrix SpA, Italy; composition: crude protein 45%, carbohydrate 21%, crude fat 16%, crude ash 9%, lysine 3%, indigestible fibers 2%, phosphorus 1%) and fresh water were available ad libitum. This high-fat, high-protein diet was used in a previous study (JenniEiermann et al 2002) and resembles the standard diet used in comparable studies of captive Western Sandpipers (e.g., Williams et al 1999, Seaman et al 2005. As part of the birds' routine care, their body mass ( 1 g) was determined weekly.…”

Section: Animalsmentioning

confidence: 99%

“…Plasma metabolites may provide a means of overcoming these problems, because they can be used to estimate individual rates of body-mass change in free-living birds from a single blood sample (Jenni-Eiermann and Jenni 1994, Jenni and Schwilch 2001, Schaub and Jenni 2001, Guglielmo et al 2002, Seaman et al 2005, Cerasale and Guglielmo 2006a, Smith et al 2007. In these studies, body-mass change was best estimated from levels of triglyceride (indicator of fat deposition),…”

Section: Introductionmentioning

confidence: 99%

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The Use of Plasma Metabolites to Predict Weekly Body-Mass Change in Red Knots

Dietz

Jenni-Eiermann

Piersma

2009

Condor

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Resumen. Los individuos de la especie Calidris canutus migran largas distancias, se reproducen en la tundra a altas latitudes en el Ártico e invernan a lo largo de las costas templadas y tropicales. La tasa de abastecimiento antes del vuelo es la principal determinante del éxito de migración. Sin embargo, estas tasas de abastecimiento son imposibles de determinar debido a que los individuos de C. canutus no son recapturados con facilidad. Estos problemas pueden ser minimizados con la estimación de los cambios en el peso corporal a partir de metabolitos plasmáticos. Estos metabolitos plasmáticos, sin embargo, son sensibles al estrés y al tiempo desde la última comida, lo que limita los estudios a aquellas situaciones en las que las muestras de sangre pueden ser tomadas inmediatamente después de la captura. Este tipo de muestreos en el campo son casi imposibles, debido a que los individuos de C. canututs son capturados generalmente con redes de neblina durante la noche. Este estudio con individuos en cautiverio de C. canututs investigó si los metabolitos plasmáticos obtenidos de muestras de sangre tomadas hasta 3 horas después de la captura pueden ser usados para predecir los cambios en el largo plazo (semanales) del peso corporal de los individuos durante el periodo natural de abastecimiento de primavera, que ocurre antes del vuelo. Los triglicéridos disminuyeron y el -hidroxibutirato aumentó con el tiempo desde la captura, y estos cambios variaron con el inicio del periodo de engorde de primavera. El -hidroxibutirato y el ácido úrico se correlacionaron con los cambios semanales en el peso corporal, pero los triglicéridos no. Los triglicéridos se correlacionaron con el peso corporal general. La mejor forma de predecir el cambio semanal en el peso corporal fue con un modelo que incluyó todos los metabolitos y el peso corporal. El tiempo de colecta de la muestra de sangre (inmediatamente o 3 horas después de la captura) no afectó la precisión de las predicciones. Las predicciones no fueron lo suficientemente precisas para permitir la comparación entre individuos; estas deberán usarse sólo para comparar grupos de individuos. THE USE OF PLASMA METABOLITES TO PREDICT WEEKLY BODY-MASS CHANGE IN RED KNOTS Uso de Metabolitos Plasmáticos para Predecir Cambios Semanales del Peso Corporal en Calidris canutusAbstract. The Red Knot (Calidris canutus) is a long-distance migrant breeding on tundra in the high Arctic and wintering along temperate and tropical coasts. Preflight fueling rate is a major determinant of successful migration, yet individual fueling rates are impossible to determine because Red Knots cannot be recaptured easily. These problems can be overcome by estimating changes in body mass from plasma metabolites. Plasma metabolites are, however, sensitive to stress and time since last meal, limiting studies to situations where birds can be bled almost immediately after capture. Such sampling is almost impossible in the field, where Red Knots are often captured with mist nets in darkness. This study on captive Red ...

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Section: Triglyceridesmentioning

confidence: 82%

Section: Animalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Use of Plasma Metabolites to Predict Weekly Body-Mass Change in Red Knots

Dietz

Jenni-Eiermann

Piersma

2009

Condor

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“…Low levels of total proteins and triglycerides are often characteristic of short periods of food deprivation and covary with size-corrected body mass of birds (Boismenu et al 1992;Dawson and Bortolotti 1997;Guglielmo et al 2005). Also, plasma triglyceride concentrations have been widely used as indicators of mass gain and refuelling performance in shorebirds (Williams et al 1999;Seaman et al 2005).…”

Section: Plasma Protein and Triglyceridesmentioning

confidence: 99%

Leukocyte profiles indicate nutritional, but not moulting stress in a migratory shorebird, the Common Snipe (Gallinago gallinago)

et al. 2017

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The relative ratio of the two main leukocyte types, heterophils (H) and lymphocytes (L), is known to change proportionally to the concentrations of stress hormones in the circulating blood. Thus, analysis of leukocyte profiles serves as a reliable proxy of stress in vertebrates, as high H/L ratios indicate stronger stress response. Moult and migration are among the most energetically demanding and nutritionally stressful processes in the annual cycle of wild birds. Although most birds separate these two activities in time, a moult-migration overlap has been reported for several avian species. The aim of this study was to examine whether overlapping energy requirements of moult and migration produce an increased organismal stress in a shorebird species, the Common Snipe (Gallinago gallinago). For this purpose, we assessed leukocyte profiles and nutritional condition in more than 350 moulting and non-moulting snipe during autumn migration through central Europe. We found negative correlations between H/L ratios and different measures of condition, including size-corrected body mass, fat load, and plasma concentrations of triglycerides and total protein. However, no evidence was found for the effect of moult status on H/L ratios. Our study indicates that while migration in a poor nutritional state can be associated with elevated stress response, the process of feather replacement may not constitute a serious stress for migrating Common Snipe. We suggest that these results may help to explain the occurrence of moult-migration overlap in the Common Snipe and possibly in other avian species.

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“…Some limited previous studies have reported on different hematology and serum biochemistry parameters of several amphibian species, including Rana esculenta (Sinha, 1983), rhacophorid frog (Mahapatra et al, 2012) and dubois's Tree Frog Polypedates teraiensis (Das and Mahapatra, 2014). Hematology and serum biochemistry parameters vary under different pathological, physiological, ecological and environmental conditions in animal population (Llacuna et al, 1996;Sarasola et al, 2004;Seaman et al, 2005). Amphibians are considered to be sensitive animals and show physiological variables to acute environmental changes (Carey, 2005).…”

Section: Introductionmentioning

confidence: 99%

Hematology and serum biochemistry of farmed bullfrog, Lithobates catesbeianus during the active and hibernating periods

Peng¹,

Zhang²,

Zhu³

et al. 2016

J. Vet. Med. Anim. Health

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The Bullfrog Lithobates catesbeianus is a species of economic important edible frog and often chosen as experimental animal model. Although, some studies in the literatures have reported the parameters of hematology and serum biochemistry in several Rana species, a comprehensive profile of hematology and biochemistry in farmed bullfrogs was very limited, especially during the hibernating period. 140 apparently healthy farmed bullfrogs (70 males and 70 females) were used during the active and hibernating periods to determine the hematology and serum biochemistry parameters including morphometry of erythrocytes, PCV, HGB, MCV, MCH, MCHC, RBC count, WBC count, differential leukocyte count, glucose (Glu), triglycerides (TG), cholesterol (Cho), blood urea nitrogen (Bun), uric acid (UA), creatine (Cre), total protein (TP), albumin (Alb), globulin (Glo), γ-glutam (GGT), total bilirubin (TB), alkaline phosphatase (Alp), a-amylase (Amy), CK, AST, ALT, LDH, K, Na, Cl and nCa (that is, the ionized calcium level when pH=7.4). Differences between sexes showed that male bullfrogs possessed a statistically higher LDH activity level, and statistically lower levels of Cre, Na and Ca concentrations. Additionally, it was noted that bullfrogs during the active period had significantly lower values for HGB, PCV, MCV, ALT, Glo, Bun, Na, Cl and surface areas and volumes of RBCs and their nuclei, and significantly higher values for WBCs counts and Cre than the hibernating ones. These baseline data could be used for health monitoring and disease diagnostics in bullfrogs artificial farming and serve as general reference values for future studies on the physiology of this species.

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Effects of physiological state, mass change and diet on plasma metabolite profiles in the western sandpiperCalidris mauri

Cited by 58 publications

References 28 publications

The Use of Plasma Metabolites to Predict Weekly Body-Mass Change in Red Knots

The Use of Plasma Metabolites to Predict Weekly Body-Mass Change in Red Knots

Leukocyte profiles indicate nutritional, but not moulting stress in a migratory shorebird, the Common Snipe (Gallinago gallinago)

Hematology and serum biochemistry of farmed bullfrog, Lithobates catesbeianus during the active and hibernating periods

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