Subclinical mastitis in Lacaune sheep: Causative agents, impacts on milk production, milk quality , oxidative profiles and treatment efficacy of ceftiofur

Alba, Davi Fernando; Rosa, Gilnéia da; Hanauer, Dalana; Saldanha, Thalia Festa; Souza, Carine F.; Baldissera, Matheus D.; Santos, Daiane da Silva dos; Piovezan, Ana Paula; Girardini, Lilian Kolling; Silva, Aleksandro Schafer Da

doi:10.1016/j.micpath.2019.103732

Cited by 22 publications

(15 citation statements)

References 27 publications

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“…This was also observed in another study conducted on the same property, where the animals had lower levels of fat, protein, lactose, non-fat solids and total solids, as well as a milk production difference of 0.1-0.4 L/ewe/day when evaluated in relation to those who received some type of treatment (Jaguezeski et al, 2018). Regarding biochemical and hematological variables, we did not obtain significant results between the groups; however, if we evaluate the data obtained and relate it to what mastitis changes in terms of animal health, we note that the numbers of defense cells changed, that is, they increased; this is similar to the results described by Alba et al (2019). Corroborating the findings of our study, Ebrahimi et al (2014) commented that, in the face of invasion of microorganisms in the mammary gland, the number of these cells, mainly neutrophils, rises in order to combat the infectious process.…”

Section: Discussionsupporting

confidence: 83%

“…The absence of a negative control group (free of mastitis) in this study limits our interpretation, that is, whether the milk composition was affected by local disease. In a recent study conducted on the same farm (Alba et al, 2019), lower levels of protein, fat and total solids were obtained, and milk production was lower for the group of animals with mastitis when compared to healthy animals of the control group. This was also observed in another study conducted on the same property, where the animals had lower levels of fat, protein, lactose, non-fat solids and total solids, as well as a milk production difference of 0.1-0.4 L/ewe/day when evaluated in relation to those who received some type of treatment (Jaguezeski et al, 2018).…”

Section: Discussionmentioning

confidence: 91%

“…and only 8% were Corynebacterium sp. (Alba et al, 2019). In the present study, strains of E. coli and hemolytic E. coli were also isolated.…”

Section: Discussionmentioning

confidence: 98%

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Lacaune ewes with subclinical mastitis: effects of intramammary application of própolis

Deolindo

Molosse

Dilda

et al. 2021

RSD

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The aim of this study was to evaluate the antimicrobial potential of the aqueous extract of green propolis in vitro against mastitis-causing and in vivo bacteria, evaluating the efficacy of treatment in Lacaune sheep. In the in vitro test, the minimum inhibitory concentration (MIC) was used; first, the MIC was obtained from the aqueous extract of green propolis for the strain of Staphylococcus. aureus ATCC 25523, defined as 1 mg/ml. For bacterial agents isolated from sheep with mastitis (Staphylococcus epidermidis, Staphylococcus intermedius, Staphylococcus hyicus, Corynebacterium spp. and Acinetobacter spp.), The concentration of 10 mg/ml was determined, while for Streptococcus equinus, Escherichia coli, and hemolytic E. coli, also isolated from sheep with mastitis, the concentration capable of reducing bacterial growth was 100 mg/ml. In the in vivo test, ten sheep were used, distributed in two treatments, five in the control group (CG) that received 2.5 ml of saline (vehicle), and five in the treated group (GT) that received 2.5 ml of aqueous (saline) propolis extract by the mammary route. The propolis dose tested (0.1 g/ml) was not effective for the treatment of mastitis, because the sheep remained positive in the racket test (CMT). The main microorganism isolated in the cases of mastitis in this study was Staphylococcus epidermidis. These results are preliminary; however, at the tested dose, the aqueous extract of green propolis delivered by the mammary route had no curative effect of mastitis.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 91%

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Lacaune ewes with subclinical mastitis: effects of intramammary application of própolis

Deolindo

Molosse

Dilda

et al. 2021

RSD

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“…It was recorded that milk ROS levels increased in mastitis group. There was no statistically significant difference between serum glucose, total protein, globulin, albumin and ROS levels in control and mastitis groups (Alba et al, 2019). Nedic et al (2019) show that TAC levels were lower in blood serum and milk serum of cows from subclinical mastitis group (n=55) compared to control group.…”

Section: Discussionmentioning

confidence: 92%

“…It was recorded that milk nitrite/nitrate levels increased in sheep with mastitis. (Alba et al, 2019). Atakisi et al (2010) found that milk NO level and TOC increased in Brown Swiss and Holstein breed cows with subclinical mastitis (n=35).…”

Section: Discussionmentioning

confidence: 99%

Nitric Oxide Molecule as A Potential Target of Alternative Strategies for the Diagnosis of Subclinical Mastitis in Cows

Gülmez

Atakisi

2020

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The mastitis is an important disease affecting daily milk yield and quality in lactating cows, it negatively affects both animal welfare and economic income. The aim of this study is to investigate the effect of subclinical mastitis on nitric oxide (NO), total antioxidant capacity (TAC), total oxidant capacity (TOC), albumin, total protein, globulin, glucose and gamma glutamyl transpeptidase activity (GGT) levels in plasma. The research was carried out in Brown Swiss and Holstein cows. The mammary lobes of the animals were scanned with the California Mastitis Test (CMT) and those with subclinical mastitis were identified. Samples with CMT (-) were classified as healthy (n = 10) and those with CMT (+) were classified as subclinical mastitis group (n = 10). The study presented is a basic feature and results clearly showed that significant amounts of NO was released in plasma during subclinical mastitis. There was no statistically significant difference between cows with or without subclinical mastitis for plasma TAC, TOC, albumin, total protein, globulin, glucose, albumin/globulin levels and GGT activity. Consequently, nitric oxide is an important mediator in subclinical mastitis as a potential target of therapeutic strategies and can be evaluated in alternative diagnosis.

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Evaluation of oxidative stress, compositional and biochemical changes in milk and serum of cows with subclinical mastitis

Yehia,

Saad,

Mosallam

et al. 2024

Comp Clin Pathol

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Subclinical mastitis in Lacaune sheep: Causative agents, impacts on milk production, milk quality , oxidative profiles and treatment efficacy of ceftiofur

Cited by 22 publications

References 27 publications

Lacaune ewes with subclinical mastitis: effects of intramammary application of própolis

Lacaune ewes with subclinical mastitis: effects of intramammary application of própolis

Nitric Oxide Molecule as A Potential Target of Alternative Strategies for the Diagnosis of Subclinical Mastitis in Cows

Evaluation of oxidative stress, compositional and biochemical changes in milk and serum of cows with subclinical mastitis

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