נושא הפרוייקט
מספר פרוייקט
מחלקה
שמות סטודנטים
אימייל
שמות מנחים
פיתוח מערכת לזיהוי מוקדם של עקה אצל כבשים באמצעות חריגה מתבנית שתייה ומשקל
Development of a system for the early detection of lameness in sheep through deviations from the drinking pattern and weight
תקציר בעיברית
תקציר באנגלית
The motivation behind this project was to examine whether monitoring sheep's water consumption and weight can help the breeder monitor the animals and identify distress situations in them. For this purpose, a system was developed that monitors the lamb's weight and water consumption at the Volkani Institute. The project aims to examine whether it is possible to link the data that the system produces with the animal's health status. At the start of this project, we studied the system, how it works, what data it produces, and how. We noticed that the system in its current state produces very noisy data. Therefore, the first stage of data processing was the construction of a procedure for arranging, cleaning, and filtering the data. Since an animal boarded at the facility more than once, the goal was to switch to daily data per animal. For the daily weight, we chose to work the median daily weight, and this is due to the large noise in the data, and we wanted a more robust datum than a simple mean. For the amount of water drunk by the animal, the daily figure was the total amount of water that the animal drank in all visits per day. In addition, we smoothed all medians according to lowess model which perform a local regression with k-nearest-neighbor. We calibrated lowess’s hyperparameter using reliable weight data. After performing data cleaning and smoothing, we created charts of control limits for the experimental group and analyzed the indices for the whole group and for the abnormal sheep (diarrhea, tumor, death). The findings of the project indicate that in all groups, the average was on an upward trend throughout most of the experimental period. In diarrheal sheep group there was no change in the weight indices. On the other hand, in the dead and in those for whom a tumor was discovered, a different behavior is seen in some of weight indices. The results indicate that normal behavior of a single sheep can be inferred from behavior observed in the majority of the flock. We did see in the findings that sheep weight indices different from normal were indeed diagnosed as abnormalities. Therefore, it is necessary to continue to examine additional groups and formulate rules by which we can monitor between abnormal sheep.