Article Abstract:
The applicability of ultrasound measurement in predicting pork composition in live swine and pork carcasses was evaluated. Prediction accuracy in approximating carcass value was also tested. Ultrasound approximation of pork composition was compared to actual measures obtained from carcasses. This showed that ultrasonography can be an effective noninvasive predictor of swine body composition. It was also shown that live weight and sex had the greatest influence on pork composition. It is necessary to take these factors into account in predicting carcass value using ultrasound.
User Contributions:
Comment about this article or add new information about this topic:
Article Abstract:
The effects of nutrient sources on blood metabolites in young dairy calves when sampled at zero and two hours after feeding were investigated. Calves fed grain had increased weight gain and body weight with higher energy intake as compared to those fed milk. The levels of blood metabolites, particularly beta-hydroxybutyrate and volatile fatty acids, were found to increase rapidly in response to increased consumption of starter feed. Starter feed was found to be rapidly fermented in the rumen, causing the large fluctuations in blood metabolite concentrations.
User Contributions:
Comment about this article or add new information about this topic:
Article Abstract:
An accreditation system for sonographers who measure carcass traits of breeding animals was evaluated. Ultrasound operators at three clinics were assessed for theoretical knowledge of ultrasound scanning technology and repeatability and accuracy of carcass and scanned measurements. There were high correlations of scanning results with carcass measurements for rump fat, rib fat and longissimus muscle area. Ultrasonic scanning is accurate and effective in predicting carcass measurements however, the development and maintenance of technique is emphasized.
User Contributions:
Comment about this article or add new information about this topic: