منابع مشابه
The accuracy of prediction of body weight from body measurements in beef cattle
The objective of this study was to determine the accuracy of prediction of body weight from body measurements in beef cattle. Wither height, chest girth, body length, chest depth, hip width and hip height measurements were obtained from Holstein, Brown Swiss and crossbred (n=140). Determination coefficients (R2) of regression equation that included all body measurements were higher in Brown Swi...
متن کاملPrediction of live body weight using length and girth measurements for pigs in rural Western Kenya
Methods: In a random sample of 288 smallholder pig farms in Western Kenya, pigs were weighed (kg) and their lengths and girths were measured (cm). Prediction models were generated using 75% of the data and validated using the remaining 25%. Weight was regressed on length and girth using mixed model analysis after controlling for village as a random effect. Models were developed for pigs categor...
متن کاملPrediction of retail beef yield and fat content from live animal and carcass measurements in Nellore cattle.
Data from 156 Nellore males were used to develop equations for the prediction of retail beef yield and carcass fat content, expressed as kilograms and as a percentage, from live animal and carcass measurements. Longissimus muscle area and backfat and rump fat thickness were measured by ultrasound up to 5 d before slaughter and fasted live weight was determined 1 d before slaughter. The same tra...
متن کاملPrediction of retail product weight and percentage using ultrasound and carcass measurements in beef cattle.
Data from 534 steers representing six sire breed groups were used to develop live animal ultrasound prediction equations for weight and percentage of retail product. Steers were ultrasonically measured for 12th-rib fat thickness (UFAT), rump fat thickness (URPFAT), longissimus muscle area (ULMA), and body wall thickness (UBDWALL) within 5 d before slaughter. Carcass measurements included in USD...
متن کاملUsing Live Animal Carcass Ultrasound Information in Beef Cattle Selection
In some instances, value-based marketing systems can be economically advantageous to cattle producers. Monetary rewards are sometimes available for producing a high-quality, consistent end product that meets consumer demands. One tool that can help producers in the efficient and profitable production of beef cattle is live animal carcass ultrasound. This gives cattle producers the ability to ma...
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ژورنال
عنوان ژورنال: Ankara Üniversitesi Veteriner Fakültesi Dergisi
سال: 1973
ISSN: 1300-0861
DOI: 10.1501/vetfak_0000001527