Metabolic and Endocrine Diseases

doi:10.1016/b978-0-7020-5246-0.00017-6

Cited by 2 publications

(1 citation statement)

References 256 publications

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“… STP = serum total protein; PTP = plasmatic total protein; F = fibrinogen; Hct = haematocrit; Hb = haemoglobin (Mission-Hb haemoglobinometer ® , Acon, San Diego, CA, USA); Zn = zinc; Al = aluminium; BHB = betahydroxybutyrate; Mg = magnesium; AI/Creat = Al to creatinine ratio; DM = dry matter; Fe = iron; in bold = non-standard results. Thresholds come from the laboratory and the literature [ 22 , 23 , 24 ]. * significant difference between sick and healthy herds assessed using t -test ( p < 0.05).…”

Section: Figurementioning

confidence: 99%

Herd Health Troubles Potentially Related to Aluminium Grass Silage Content in Dairy Cows

Eppe

Djebala

Guyot

2023

Veterinary Sciences

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In ruminants, the main documented clinical manifestation of aluminium (Al) intoxication is similar to grass tetany. In a 50 dairy cow Belgian herd, the farmer reported excessive uterine bleeding at calving and decreased milk production. Dairy cows received a mixed ration (MR) with high Al concentration (453 ppm/kg of dry matter (DM)). Various analyses were sampled from 10 sick cows and compared with 10 healthy cows (from another herd). Sick cows presented anaemia and marginal hypozincaemia and 6/10 showed subclinical ketosis. Their urine analysis revealed hypomagnesaemia and a high Al/creatinine ratio. It was advised to determine soil pH, add salts to the ration to chelate the Al and support cows with mineral supplements and propylene glycol. A visit was carried out 2 years later and highlighted an improvement in the situation, but all examined animals presented subclinical ketosis. Grass silage Al content remained high (700 ppm/kg DM), as did butyric acid concentration (11.22 g/kg DM). Al could be incriminated at different stages: micronutrient deficiencies, anaemia and negative energy balance. However, Al was probably not the only culprit. This case report is a concern for future years in these areas due to droughts, scarcity of forage and an increase in contaminated soil ingestion.

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Section: Figurementioning

confidence: 99%

Herd Health Troubles Potentially Related to Aluminium Grass Silage Content in Dairy Cows

Eppe

Djebala

Guyot

2023

Veterinary Sciences

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Changes in plasma fatty acids profile in hyperketonemic ewes during early lactation: a preliminary study

Lisuzzo

Fiore

Harvatine

et al. 2022

Sci Rep

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The transition from late pregnancy to early lactation is characterized by marked changes in energy balance of dairy ruminants. The mobilization of adipose tissue led to an increase in plasma non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHB). The aim of this study was to analyze the total plasma fatty acids of healthy and hyperketonemic dairy ewes in early lactation through gas chromatography (GC) to evaluate metabolic alterations. An observational study was used with a cross-sectional experimental design. Forty-six Sarda dairy ewes were enrolled in the immediate post-partum (7 ± 3 days in milk) and divided into two groups according to serum BHB concentration: non-hyperketonemic group (n = 28; BHB < 0.86 mmol/L) and hyperketonemic group (n = 18; BHB ≥ 0.86 mmol/L). A two-way ANOVA included the effect of group and parity was used to evaluate differences in fatty acids (FA) concentrations. A total of 34 plasma FA was assessed using GC. 12 out of 34 FA showed a significant different between groups and 3 out of 34 were tended to significance. Only NEFA concentration and stearic acid were influenced by parity. The results may suggest possible links with lipid metabolism, inflammatory and immune responses in hyperketonemic group. In conclusion, GC represents a useful tool in the study of hyperketonemia and primiparous dairy ewes might show a greater risk to develop this condition.

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Metabolic and Endocrine Diseases

Cited by 2 publications

References 256 publications

Herd Health Troubles Potentially Related to Aluminium Grass Silage Content in Dairy Cows

Herd Health Troubles Potentially Related to Aluminium Grass Silage Content in Dairy Cows

Changes in plasma fatty acids profile in hyperketonemic ewes during early lactation: a preliminary study

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