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ABSTRACT Nutritive values of major ingredients vary considerably not only among different feedstuff but also the same ingredients of different batches. Rapid screening nutritive value has been a great challenge in the feed industry. This study assessed 4 soybean meal (SBM) samples using both NIRS technique and broiler experiments. In broiler Test 1, 4 SBM samples were assigned the same "book value", so that the four dietary...
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Objective:
Evaluate the feasibility of making NIRS calibrations for amino acids and energy for dried distiller's grains and solubles (DDGS).
Materials and methods:
A total of 103 samples of DDGS were obtained from Dr. Jerry Shurson, University of Minnesota. These samples were obtained from 9 different plants over a period of two years and had been analyzed...
Livestock are most productive when fed a ration balanced according to their nutrient needs. Unfortunately, many rations are balanced using average values for each feedstuff. These so-called "book values" often result in over- or under-feeding certain nutrients. More economical and better balanced diets can be formulated using nutrient concentrations determined from feed analysis. Methods of Feed Testing Once a feed sample has been...
Bovine respiratory disease continues to be the leading cause of illness and death loss from weaning through finishing. There is no objective method to evaluate a live animal’s severity of sickness or their response to treatment. A pilot study was conducted at a commercial feedyard to evaluate the ability of near infrared spectroscopy to differentiate between cattle identified as healthy and those identified as having undifferentiated Bovine Respiratory Disease (BRD). At processing, 215 randomly...
Barley has a long history of use as both human and animal food and is grown in many countries around the world. In Western countries, barley is primarily used for animal feed and for malting and brewing with very little designated for food use. Over the last two decades there have been a number of important developments that have influenced or have the potential to influence barley utilization in food and feed. Interest in the use of barley as a food grain has increased primarily...