Developing model equation to subdivide lysine requirements into requirement for growth and maintenance in pigs
نویسندگان
چکیده
منابع مشابه
Lysine requirement for maintenance in growing pigs
Probably due to methodological problems the knowledge about the AA requirement for maintenance in pigs is rather scarce. In the present study an alternative experimental approach was applied and its underlying hypothesis was tested, whether protein retention decreases with body weight (BW), when daily lysine intake remains constant and acts as the limiting factor for protein retention, and whet...
متن کاملMaintenance requirement and deposition efficiency of lysine in pigs
The objective of this work was to determine the maintenance requirement and the deposition efficiency of lysine in growing pigs. It was used the incomplete changeover experimental design, with replicates over time. Twelve castrated pigs with average body weight (BW) of 52±2 kg were kept in metabolism crates with a controlled temperature of 22°C. The diets were formulated to supply 30, 50, 60, a...
متن کاملEstimation of the Lysine Requirements for High-Lean Growth Pigs
feed intake produced 2.91 2 1.61 more live pigs from Parity 1 to 3 than those developed with ad libitum access to feed. Gilt weight and backfat at 135 days of age affected the likelihood that gilts farrowed a Parity 1 litter. The effect depended on genetic line and development regimen. Each 10 lb increaseldecrease in weight from the mean weight of 248.7 lb was associated with an increaseldecrea...
متن کاملThreonine and lysine requirements for maintenance in chickens
In order to describe the response of broiler breeder hens to dietary amino acids and to develop an effective model for the precise feeding of these birds after sexual maturity, accurate estimates of the amounts of each amino acid required for maintenance and egg production are needed. The maintenance requirement for threonine and lysine were estimated in two different experiments by measuring t...
متن کاملDigestible lysine requirement of starter and grower pigs.
Three experiments were conducted to determine the digestible lysine requirement of starter (6 kg BW initially) and of grower (21 kg BW initially) pigs. Experiment 1 used 294 starter pigs and lasted 28 d; Exp. 2 used 182 grower pigs and lasted 35 d. Protein and total lysine contents of the basal corn-peanut meal diets were 20 and .8% for Exp. 1 and 16 and .54% for Exp. 2. Basal diets were fortif...
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ژورنال
عنوان ژورنال: Asian-Australasian Journal of Animal Sciences
سال: 1997
ISSN: 1011-2367,1976-5517
DOI: 10.5713/ajas.1997.54