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

Reis, Eduardo Mitke Brandão; Lopes, Marcos Aurélio

doi:10.25110/arqvet.v17i3.2014.4945

Cited by 3 publications

(4 citation statements)

References 24 publications

(36 reference statements)

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“…Retained placenta, mastitis, displaced abomasum, metritis, or lameness, for example, could have altered the animals' walking activity behavior [11]. Early detection is critical in decreasing the deleterious effects of mastitis [12]. Among the methods used to diagnose this condition, rumination sensors have proven to be efficient in detecting mastitis and other diseases in their early stages [12].…”

Section: Introductionmentioning

confidence: 99%

“…Early detection is critical in decreasing the deleterious effects of mastitis [12]. Among the methods used to diagnose this condition, rumination sensors have proven to be efficient in detecting mastitis and other diseases in their early stages [12]. In previous investigations, we attempted to identify the relationship between subclinical ketosis (SCK), locomotor behavior (feeding time with head up, feeding time with head down, frequency of switching between activities, and walking activity), and ambient temperature (average, minimal and maximal temperature).…”

Section: Introductionmentioning

confidence: 99%

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Identification of Changes In Rumination Behavior Registered With An Online Sensor System In Cows With Subclinical Mastitis

Antanaitis¹,

Juozaitienė²,

Malašauskienė³

et al. 2022

Preprint

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The aim of the current study was to determine the relation between subclinical mastitis and rumination behavior registered with an online sensor system. According to the results of the general clinical examination of 650 milking cows, 10 cows with subclinical mastitis (SCM) and 10 clinical healthy cows (HG) were selected (without clinical signs of any diseases). Rumination behavior biomarkers were registered with RumiWatch noseband sensor (RWS; ITIN + HOCH GmbH, Fütterungstechnik, Liestal, Switzerland). Sensors were implanted on the first day after calving. Data from the RWS from 13th days before the diagnosis and 13 days after diagnosis of SCM were used to compare with HG data during the same period. The healthy cows were monitored during the same days as the SCM cows.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of Changes In Rumination Behavior Registered With An Online Sensor System In Cows With Subclinical Mastitis

Antanaitis¹,

Juozaitienė²,

Malašauskienė³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…Early diagnosis plays an important role in reducing the negative effects of mastitis [23]. Among the tools to detect this disease, rumination sensors, such as those used in C-Tech collars (Chip inside), have become effective alternatives to identify mastitis and other diseases in early stages [23]. In this sense, the objective of the present study was to evaluate the average rumination time (RT) of dairy Holstein cows during the healthy period and affected by SM and CM through C-TECH (Chip-inside) rumination collars, as well as how to detect sensitivity of rumination collars C-TECH1 in the detection of SM and CM.…”

Section: Introductionmentioning

confidence: 99%

Use of the Rumination Profile Through Collar Sensors for Mastitis Diagnosis in Dairy Cows

Schmidt

Vieira

Barbosa

et al. 2021

Acta Scientiae. Vet.

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Background: Mastitis is an inflammatory disease of the mammary gland, mostly associated with bacterial infections. It is responsible for great economic losses due to decreased milk yield, discarded milk, milk composition alterations and treatment costs, besides it impairs the animal health and welfare. The rumination time is an important behavioral marker and its assessment can be used as an early diagnosis tool, which can improve cure rate. Therefore, the aim of the present study was to evaluate the sensitivity of behavior monitoring system collars in the diagnosis of mastitis and the average rumination time (RT) of Holstein cows during the healthy period and affected by the disease.Materials, Methods & Results: The study was conducted on a commercial property located in the municipality of Rio Grande, Rio Grande do Sul, Brazil. The RT data from 39 multiparous Holstein cows with an average milk yield of 38.4 L/day was collected. RT monitoring was performed using C-Tech1 collars combined with CowMed® software, which assess behavior data from the animals and emits warning signals when it finds abnormalities in any parameter. In order to verify whether the animals were determined correlated with diseases, the sensitivity of the data was evaluated, when the system had given the alert to animals considered ill, they underwent to a further clinical evaluation performed by a veterinarian to confirm the diagnosis. From the diagnosis, the cows were divided into subclinical mastitis (SM) and clinical mastitis (CM) groups. SM was detected by the Californian Mastitis Test (CMT) and cows that were graded 1 (++), 2 (++) or 3 (+++) without the presence of any other clinical sign were assigned to the SM group. CM was assessed by observation of abnormalities in milk such as changes in color and consistency, as well as the presence of lumps, clots or blood; and clinical examination of the udder was performed for detection of hot, hard, swollen or painful quarters. Thereafter, variations in the mean RT between the healthy (15 days) and sick periods (days when there was an alert) were evaluated. For the identification of the etiological agents involved in the cases of CM, microbiological cultures were performed on Accumast® plates with milk samples, which were incubated at a temperature of 37°C and the diagnosis of the pathogens were performed after16 h of incubation. During the study, 57 cases of mastitis were observed, 42 were SM and 15 were CM. The sensitivity of the system, which is the ability to detect positive cases of the disease, was 73.8% for SM and 73.3% for MC. The RT of the animals were compared individually during the healthy period with the sick period and it was observed that SM reduced the RT by 5.33% whereas MC reduced the RT by 14.9%.Discussion: The maximum RT values were lower during the disease period in relation to the period in which the animals were healthy, for both SM and CM, which is due to the fact that the disease is responsible for causing inappetence in animals, among other clinical signs, therefore, reducing feed consumption. The lowest variation in RT, between the healthy and sick period, was observed in cases of SM, which was already expected, since the clinical form tends to cause more discomfort to the animals. As for the main etiological agents involved in the clinical condition, Streptococcus agalactiae and S. uberis were detected. In view of the above, the evaluation of the mean RT of multiparous dairy cows was efficient in the predictive diagnosis of SM and CM up to 2 days before the onset of the disease. In addition, the variability of this result demonstrated that animals with subclinical cases presented less fluctuation in RT.

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Identification of Changes in Rumination Behavior Registered with an Online Sensor System in Cows with Subclinical Mastitis

Antanaitis

Juozaitienė

Malašauskienė

et al. 2022

Veterinary Sciences

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The aim of the present study is to determine the relationship between subclinical mastitis and rumination behavior registered with an online sensor system. Based on the findings of the general clinical examination of 650 milking cows, 10 cows with subclinical mastitis (SCM) and 10 clinically healthy cows (HG) were selected (without clinical signs of any diseases). Rumination behavior biomarkers were registered with RumiWatch noseband sensors (RWS; ITIN + HOCH GmbH, Fütterungstechnik, Liestal, Switzerland). Sensors were implanted on the first day after calving. Data from the RWS 13 days before diagnosis of SCM and 13 days after diagnosis of SCM were compared with HG data from the same period. Healthy cows were checked alongside SCM cows on the same days. In our study, we found that healthy cows spent more time engaging in rumination and drinking (p < 0.05) and also had more boluses per rumination. Moreover, among cows with subclinical mastitis, rumination time from day 4 to day 0 decreased by 60.91%, drinking time decreased by 48.47%, and the number of boluses per rumination decreased by 8.67% (p < 0.05). The results indicate that subclinical affects time and rumination chews registered with sensor systems. However, additional studies with larger numbers of animals are required to confirm these results. Furthermore, the impact of heat stress, estrus, and other effects on rumination behavior biomarkers should be evaluated.

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

Cited by 3 publications

References 24 publications

Identification of Changes In Rumination Behavior Registered With An Online Sensor System In Cows With Subclinical Mastitis

Identification of Changes In Rumination Behavior Registered With An Online Sensor System In Cows With Subclinical Mastitis

Use of the Rumination Profile Through Collar Sensors for Mastitis Diagnosis in Dairy Cows

Identification of Changes in Rumination Behavior Registered with an Online Sensor System in Cows with Subclinical Mastitis

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