Screening method for early detection of mastitis in cows

Ferrero, Francisco; Valledor, M.; Campo, J.C.

doi:10.1016/j.measurement.2013.10.015

Cited by 31 publications

(17 citation statements)

References 10 publications

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“…The obtained data were analyzed with a k-nearest neighbors algorithm and discrimination between adulterated and non-adulterated samples was achieved with 94.9 % correct answers. Ferrero et al (2014) built an electronic system for early detection of mastitis in cows. The system, based on the microcontroller PIC16F876 (Microchip Technology), performed measurements of electrical conductivity at 10 kHz using two stainless steel electrodes 10 mm apart and with effective area of about 100 mm 2 .…”

Section: Dairy Productsmentioning

confidence: 99%

Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review

Grossi

Riccò

2017

J. Sens. Sens. Syst.

312

160

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Abstract. Electrical impedance spectroscopy (EIS), in which a sinusoidal test voltage or current is applied to the sample under test to measure its impedance over a suitable frequency range, is a powerful technique to investigate the electrical properties of a large variety of materials. In practice, the measured impedance spectra, usually fitted with an equivalent electrical model, represent an electrical fingerprint of the sample providing an insight into its properties and behavior. EIS is used in a broad range of applications as a quick and easily automated technique to characterize solid, liquid, semiliquid, organic as well as inorganic materials. This paper presents an updated review of EIS main implementations and applications.

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Section: Dairy Productsmentioning

confidence: 99%

Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review

Grossi

Riccò

2017

J. Sens. Sens. Syst.

312

160

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“…In recent years, multiple devices have been developed and implemented by the dairy industry to automatically monitor behavior and physiological parameters (Rutten et al, 2013;Ferrero et al, 2014;Barkema et al, 2015). Physical activity levels and rumination time are 2 parameters that are currently available for monitoring cow health.…”

Section: Introductionmentioning

confidence: 99%

Use of rumination and activity monitoring for the identification of dairy cows with health disorders: Part I. Metabolic and digestive disorders

Stangaferro

Wijma

Caixeta³

et al. 2016

Journal of Dairy Science

156

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The objectives of this study were to evaluate (1) the performance of an automated health-monitoring system (AHMS) to identify cows with metabolic and digestive disorders-including displaced abomasum, ketosis, and indigestion-based on an alert system (health index score, HIS) that combines rumination time and physical activity; (2) the number of days between the first HIS alert and clinical diagnosis (CD) of the disorders by farm personnel; and (3) the daily rumination time, physical activity, and HIS patterns around CD. Holstein cattle (n=1,121; 451 nulliparous and 670 multiparous) were fitted with a neck-mounted electronic rumination and activity monitoring tag (HR Tags, SCR Dairy, Netanya, Israel) from at least -21 to 80 d in milk (DIM). Raw data collected in 2-h periods were summarized per 24 h as daily rumination and activity. A HIS (0 to 100 arbitrary units) was calculated daily for individual cows with an algorithm that used rumination and activity. A positive HIS outcome was defined as a HIS of <86 during at least 1 d from -5 to 2 d after CD. Blood concentrations of nonesterified fatty acids, β-hydroxybutyrate, total calcium, and haptoglobin were determined in a subgroup of cows (n=459) at -11±3, -4±3, 0, 3±1, 7±1, 14±1, and 28±1 DIM. The sensitivity of the HIS was 98% [95% confidence interval (CI): 93, 100] for displaced abomasum (n=41); 91% (95% CI: 83, 99) for ketosis (n=54); 89% (95% CI: 68, 100) for indigestion (n=9); and 93% (95% CI: 89, 98) for all metabolic and digestive disorders combined (n=104). Days (mean and 95% CI) from the first positive HIS <86 and CD were -3 (-3.7, -2.3), -1.6 (-2.3, -1.0), -0.5 (-1.5, 0.5), and -2.1 (-2.5, -1.6) for displaced abomasum, ketosis, indigestion, and all metabolic and digestive disorders, respectively. The patterns of rumination, activity, and HIS for cows flagged by the AHMS were characterized by lower levels than for cows without a health disorder and cows not flagged by the AHMS from -5 to 5 d after CD, depending on the disorder and parameter. Differences between cows without health disorders and those flagged by the AHMS for blood markers of metabolic and health status confirmed the observations of the CD and AHMS alerts. The overall sensitivity and timing of the AHMS alerts for cows with metabolic and digestive disorders indicated that AHMS that combine rumination and activity could be a useful tool for identifying cows with metabolic and digestive disorders.

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“…Vários autores (FERRERO et al, 2014;HAMMER et al, 2012;KASIKÇI et al, 2012;NORBERG et al, 2004) determinam a CE para leite de vacas normais e com mastite clínica ou subclínica, onde a CE do leite proveniente de vacas saudáveis variam entre 4,0 a 5,0 mS/cm (SANTOS, 2002), sendo que os valores aumentam para 5,37 em casos subclínicos e para 6,73 mS/cm para casos clínicos de mastite (SANTOS, 2002). Sheldrake et al (1983) encontraram valores de CE que variaram de 4,6; 5,8 e 6,5 respectivamente, para leites com CCS média de 158, 200 e 251 mil células/mL em vacas da raça Holandesa.…”

Section: Métodos Automatizados Para O Diagnóstico De Mastiteunclassified

Métodos Automatizados De Diagnóstico De Mastite Em Vacas Leiteiras: Uma Revisão

Reis

Lopes

2015

ArqVet

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REIS, E. M. B.; LOPES, M. A. Métodos automatizados de diagnóstico de mastite em vacas leiteiras: uma revisão. Arq. Ciênc. Vet. Zool. UNIPAR, Umuarama, v. 17, n. 3, p. 199-208, jul./set. 2014. RESUMO:A mastite é a infecção mais frequente dos animais destinados à produção de leite e que mais onera a pecuária leiteira. As perdas econômicas são causadas por diversos fatores: medicamentos, morte ou descarte precoce de animais, bem como em laticínios, pela queda na qualidade do produto final. Rotineiramente, quando se pretende verificar a incidência de mastite em vacas leiteiras utilizam-se os métodos convencionais e subjetivos, como a caneca telada e o California Mastitis Test. A automação na pecuária leiteira é uma inovação tecnológica que visa a minimizar os erros de manejo e otimizar os processos dentro da atividade, dentre os quais o diagnóstico precoce de casos subclínicos de mastite. O uso de sensores que utilizam parâmetros objetivos de mensuração tais como: condutividade elétrica, contagem de células somáticas, presença da enzima lactato desidrogenase, mensuração da cor e a homogeneidade podem ser a alternativa para detecção rápida e precisa de mastite em bovinos, especialmente quando se trata de sistemas automatizados, pois o diagnóstico precoce minimiza as perdas econômicas. Diante do exposto, objetivou-se realizar uma revisão bibliográfica sobre os métodos automatizados de detecção de mastite existentes atualmente. PALAVRAS-CHAVE: Automação. Bovinocultura Leiteira. Inovação Tecnológica. Zootecnia de Precisão. AUTOMATED DIAGNOSIS METHODS OF MASTITIS IN DAIRY MILK CATTLE: A REVIEWABSTRACT: The objective of this paper is to perform a bibliographic review on the currently existing automated methods for the detection of mastitis. Usually when one is supposed to verify the incidence of mastitis in dairy cows, conventional and subjective methods, such as the strip cup test and the California Mastitis Test, are used. Automation in dairy farming is a technological innovation aiming to minimize handling errors and to optimize the processes in the activity, among them, the early diagnosis of subclinical mastitis cases, through sensors using objective measuring parameters, such as electric conductivity, somatic cell count, presence of lactate dehydrogenase enzyme, color and homogeneity measurement. KEYWORDS: Automation. Dairy Cattle. Precision Dairy Farming. Technological Innovation. MÉTODOS AUTOMATIZADOS DE DIAGNOSIS DE MASTITIS EN VACAS LECHERAS: UNA REVISIÓNRESUMEN: Mastitis es la infección más frecuente en animales destinados a la producción de leche y más oneroso a la ganadería lechera. Las pérdidas económicas son causadas por diversos factores: medicamentos, muerte o descarte precoz de animales, así como en lacticinios, por la caída en la calidad del producto final. Rutinariamente, cuando se pretende verificar la incidencia de mastitis en vacas lecheras se utilizan los métodos convencionales y subjetivos, como la taza de red y el California Mastitis Test. La automatización en la ganadería lechera es una innovaci...

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Screening method for early detection of mastitis in cows

Cited by 31 publications

References 10 publications

Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review

Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review

Use of rumination and activity monitoring for the identification of dairy cows with health disorders: Part I. Metabolic and digestive disorders

Métodos Automatizados De Diagnóstico De Mastite Em Vacas Leiteiras: Uma Revisão

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