The effect of body condition score on blood metabolites and hormonal profiles in ewes

Caldeira, Rui; Belo, A. T.; Santos, César Cabello dos; Vazques, M.I.; Portugal, A. V.

doi:10.1016/j.smallrumres.2005.08.027

Cited by 140 publications

(122 citation statements)

References 25 publications

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“…Thus, the biochemical profile represents an important parameter that allows for improvements in production rates through the control of the feed supplied. Caldeira, Belo, Santos, Vazques, and Portugal (2007) verified that glucose, non-esterified fatty acids, and insulin enabled a better understanding of the energy nutritional status in sheep at different life stages.…”

Section: Introductionmentioning

confidence: 71%

<b>Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites

Santos

Macedo

Silva

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. The aim of this study was to assess the effect of propylene glycol (PG) added to the water sheep drank during lactation on protein and mineral metabolites of their suckling lambs. We assessed 24 lambs born to sheep fed levels of propylene glycol in the water (0; 1.5; 3.0 and 4.5%). The sheep were subdivided according to a completely randomized design, in a split-plot scheme. There was no interaction effect between lamb age and amount of PG provided to the sheep on the concentration of protein and mineral metabolites of the lambs. The concentration of total protein, globulin, and albumin: globulin ratio, uric acid and creatinine in the lambs was not affected by the inclusion of PG (p > 0.05). The concentration of urea and magnesium in the lambs presented a quadratic response as a function of the addition of PG; there was linear response for albumin concentration. The addition of PG to the sheep's diet and the lambs' age affect the concentration of protein and mineral metabolites in the lambs. However, using PG to feed lactating sheep does not have negative effects on the lambs' blood parameters, as evidenced by the absence of nutritional deficiency (protein and minerals) in the suckling lambs.Keywords: albumin, globulin, sheep, protein, urea, water.Inclusão de propilenoglicol na dieta de ovelhas e efeito nos metabólitos proteicos e minerais de suas crias RESUMO. Objetivou-se avaliar o efeito da inclusão do propilenoglicol na água de ovelhas durante a lactação sobre os metabólitos proteicos e minerais de suas crias. Foram avaliados 24 cordeiros (as), filhos (as) de ovelhas que receberam níveis de propilenoglicol (0; 1,5; 3,0 e 4,5%) na água. As ovelhas foram distribuídas em delineamento inteiramente casualizado em esquema de parcela subdividida. Não houve efeito de interação entre a idade dos cordeiros (a)s e a quantidade(s) de propilenoglicol oferecido para as mães na concentração dos metabólitos proteicos e minerais dos cordeiros. A concentração de proteínas totais, globulinas, relação albumina:globulinas, ácido úrico e creatinina nos cordeiros não foi afetada pela inclusão de propilenoglicol na água das matrizes. A concentração de ureia e magnésio nos cordeiros apresentou resposta quadrática em função da inclusão de propilenoglicol na dieta das ovelhas, sendo que para a concentração de albumina houve resposta linear. A inclusão de propilenoglicol na dieta das ovelhas e a idade dos cordeiros alteram a concentração dos metabólitos proteicos e minerais nas crias. Contudo, a utilização do propilenoglicol na alimentação de ovelhas lactantes não proporciona efeitos negativos nos parâmetros sanguíneos dos cordeiros, o que é evidenciado pela ausência de déficit nutricional (proteína e minerais) nos cordeiros lactentes.

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Section: Introductionmentioning

confidence: 71%

<b>Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites

Santos

Macedo

Silva

et al. 2017

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

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“…Resultados semelhantes foram descritos por Caldeira et al (2007), que num experimento verificou escore corporal 3 em ovelhas gestantes, que apresentaram perfil bioquímico equilibrado do status metabólico.…”

Section: Resultsunclassified

Metabolismo energético, proteico e mineral de ovelhas Santa Inês hígidas e com mastite subclínica

et al. 2013

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RESUMO.-Este estudo teve por objetivo avaliar o metabolismo energético, proteico e mineral de ovelhas Santa Inês hígidas e com mastite subclínica acompanhadas durante o final da gestação e na lactação. Foram acompanhadas ovelhas submetidas ao mesmo sistema de criação semi-intensivo. Os animais foram avaliados conforme os momentos a seguir: 10 dias que precedeu o parto (dap) e 15 dias pós parto (dpp), 30 dpp, 60 dpp e 90 dpp. Os metabólitos sanguíneos foram avaliados a partir do momento que antecedeu ao parto e os metabólitos no soro lácteo nos momentos The study aimed to evaluate the energy, protein and mineral metabolism in Santa Inês ewes, healthy and with subclinical mastitis, followed up during late gestation and lactation periods. Ewes subjected to the same semi-intensive nursing system were followed up. The animals were evaluated according to the following stages: 10 days before parturition (dbp) and 15 days postpartum (dpp), 30 dpp, 60 dpp, and 90 dpp. Blood metabolites were evaluated starting from the stage previous to parturition and whey metabolites were evaluated in the subsequent stages. A screening of the ewes followed up in this study (12 healthy and 18 with subclinical mastitis) was performed after a clinical and bacteriological examination. During lactation, maintaining the same screening criteria, 11 healthy and 20 infected mammary glands were selected; the milk for whey extraction was collected from these glands. Energy profile metabolites (non-esterified fatty acids [NEFAs], ß-hydroxybutyrate [BHB], fructosamine, cholesterol and triglycerides), protein profile (total protein, albumin, urea and creatinine) and mineral profile (iron, copper, zinc, magnesium, total calcium, ionized calcium, sodium, and potassium) were measured in the blood serum. Calcium, sodium and potassium ions, as well as NEFAs and BHB were measured in the whey. Blood biochemistry revealed an influence (P<0.05) of the peripartum and lactation periods on the blood concentrations of NEFAs, BHB, cholesterol, albumin, urea, ionized calcium. An analysis of the whey also revealed an influence on the potassium ion. Ewes with subclinical mastitis showed higher (P<0.05) blood levels of cholesterol, albumin and copper; higher sodium ion concentrations and NEFAs, and lower potassium ion in whey. Good physical score of ewes observed during this study, combined with the biochemical findings, allowed us to conclude that there was a larger energy requirement in the first month of lactation; however, this requirement was not enough to trigger any metabolic disorder or the emergence of ketonemia, and these discrete changes were more apparent in ewes with subclinical mastitis.INDEX TERMS: Metabolic profile, sheep, pregnant ewes, lactating, blood serum, infection of the mammary gland, mastitis, whey.

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“…Serum creatinine is an indicator of protein metabolism in ruminants and is positively correlated with muscle mass (Cameron, 1992;Caldeira et al, 2007) and negatively correlated with backfat thickness in sheep (Clarke et al, 1996). In this context, it is suggested that animal selection for RFI may result in higher concentrations of blood creatinine and, concurrently, lead to changes in body composition with lower fat deposition in the carcass and a higher proportion of muscle mass similar to that found in cattle by Richardson et al (2001).…”

Section: Discussionmentioning

confidence: 99%

Residual feed intake and hematological and metabolic blood profiles of lle de France lambs

et al. 2013

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-The objectives of this study were to estimate the phenotypic correlations of residual feed intake (RFI) and gross feed efficiency (GFE) with hematological and metabolic blood profiles of lambs and to determine the differences for these traits in animals of different RFI classes. Twenty Ile de France male lambs, 115±8 days of age and 31.3±4.1 kg of body weight (means ± SD), were individually housed and their dry matter intake was measured over 65 days. They were weighed every 13 days to determine the average daily weight gain and two blood samples were collected at the last two weighings (at 07h30) for analysis of blood variables. The animals were divided into two classes: negative RFI (most efficient: <0.5 SD below the mean; n = 6) and positive RFI (least efficient: >0.5 SD above the mean; n = 8). There were associations among RFI and the serum metabolic variables for albumin (r RFI = 0.74) and creatinine (r RFI = −0.45) and between GFE and serum albumin (r GFE = −0.70). Less efficient animals as measured by RFI had higher serum albumin and lower creatinine levels and showed a tendency to have a greater concentration of total plasma protein. Other serum biochemical parameters were not correlated with GFE and RFI, and no differences between RFI classes were found. There was a correlation between the percentage of eosinophils and RFI (r RFI = −0.65), and such more efficient animals had a higher proportion of these cells and a trend to have a lower percentage of monocytes. This study provided evidence indicating associations between RFI and protein metabolism, as reflected by the serum albumin and creatinine. The hematological findings suggest that RFI is related to susceptibility of lambs to stress and should provide a basis for further research in this regard.

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The effect of body condition score on blood metabolites and hormonal profiles in ewes

Cited by 140 publications

References 25 publications

<b>Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites

<b>Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites

Metabolismo energético, proteico e mineral de ovelhas Santa Inês hígidas e com mastite subclínica

Residual feed intake and hematological and metabolic blood profiles of lle de France lambs

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