השוואת שיטות

	ספירת תאים סומטיים	הערכת מצב גוף (Body Condition Scoring)	פוליסומנוגרפיה
תחום	מדע וטרינרי	מדע וטרינרי	מדע וטרינרי
משפחה	Process / pipeline	Process / pipeline	Process / pipeline
שנת המקור	1980	1987	1953
הוגה השיטה	Veterinary Milk Quality Standards	Dairy Nutrition Research Community	William Dement and Nathaniel Kleitman
סוג	Quantitative Screening Test	Visual and Palpation Assessment	Multi-channel Recording and Analysis
מקור מכונן	Philippidis, G. P., Frey, H. R., & Klug, C. (2016). Somatic cell count and milk production in dairy cattle. Journal of Dairy Science, 99(2), 1419-1427.	Ferguson, J. D., Galligan, D. T., & Thomsen, N. (2004). Principal descriptors of body condition score in Holstein cows. Journal of Dairy Science, 87(12), 3793-3806.	Rechtschaffen, A., & Kales, A. (1968). A Manual of Standardized Terminology, Techniques and Scoring System for Sleep Stages in Human Subjects. National Institutes of Health Publication.
כינויים	SCC, mastitis indicator, milk quality assessment	BCS, body condition assessment, nutritional status evaluation	PSG, sleep study, overnight monitoring
קשורות	3	3	3
תקציר	Somatic Cell Count (SCC) is a quantitative measure of the concentration of white blood cells and epithelial cells in milk, used as a primary indicator of udder health and the presence of mastitis in lactating cattle. Standardized by veterinary regulatory agencies worldwide, SCC serves as a non-invasive, cost-effective screening tool in dairy herd management and milk quality assessment.	Body Condition Scoring (BCS) is a semi-quantitative visual and palpation assessment method used to evaluate the nutritional status and adipose tissue reserves of livestock, particularly dairy cattle, beef cattle, and small ruminants. Developed systematically in the 1980s, BCS provides a practical, non-invasive tool for herd management, reproductive performance prediction, and feed efficiency optimization.	Polysomnography (PSG) is a comprehensive multi-channel physiological recording method that simultaneously records brain electrical activity, eye movements, muscle tone, respiratory effort, oxygen saturation, heart rate, and limb movements during sleep. First systematized by Rechtschaffen and Kales in 1968, polysomnography is the gold standard for diagnosing sleep disorders, characterizing sleep architecture, and assessing the quality and organization of sleep in humans and increasingly in veterinary species.