منابع مشابه
Predicting feed digestibility from NIRS analysis of pig faeces.
Digestibility is a key parameter in the evaluation of feeds; however, the measurements on animals require heavy experimental trials, which are hardly feasible when large numbers of determinations are required - for example, in genetic studies. This experiment aimed at investigating the possibility to predict digestibility from NIRS spectra measured on faeces. A total of 196 samples were availab...
متن کاملUse of a nylon-bag technique for pig feed digestibility studies.
1. The use of a nylon-bag technique for pig feed digestibility determination was studied. Bags, measuring 25 x 40 mm and containing feed samples, were introduced into the pig gastrointestinal tract through a duodenal cannula, and recovered in the faeces between 23 and 69 h later. The disappearance of organic matter and crude protein (nitrogen x 6.25) from the bags was compared with in vivo appa...
متن کاملInvited review: Amino acid bioavailability and digestibility in pig feed ingredients: terminology and application.
In this review, the terminology that is used to describe the bioavailability and ileal digestibility of AA in pig feed ingredients is defined. Aspects of the methodology to establish bioavailability and ileal digestibility values also are discussed, and recommendations about the use of these values are provided. Two main factors can contribute to differences between bioavailability and ileal di...
متن کاملEffects of Defaunation on Feed Digestibility,
T HE role of rumen protozoa in ruminant metabolism has received increasing attention during the past few years. Increased rates of gain by lambs containing protozoa compared to protozoa-free lambs were reported by Abou Akkada and el-Shazly (1964) and Yoder et al. (1964), who demonstrated that certain rations are more readily digested by faunated than by defaunated lambs. Greater rumen ammonia c...
متن کاملDetermination by HPLC of chlortetracycline in pig faeces.
An HPLC assay used to determine chlortetracycline (CTC) in pig faeces is reported. Prodigy ODS3 (4.6 x 150 mm) was used for the stationary phase, whereas the mobile phase comprised oxalic acid, sodium oxalate and sodium decane sulfonate (66%)--each of 4 mM, and 34% acetonitrile. The mobile phase was pumped at a flow rate of 1 mL/min. Detection of CTC was by ultraviolet absorbance at 370 nm, and...
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ژورنال
عنوان ژورنال: Animal
سال: 2015
ISSN: 1751-7311
DOI: 10.1017/s1751731114003097