The objective of the present study was to determine apparent digestibility juveniles matrinxã Brycon amazonicus fed diets with different levels protein. experimental design completely randomized, where treatments consisted four protein in (28, 32, 36 and 40%) five replicates (water boxes) 10 each. Diets were offered times a day, feces collected twice week, along 28 days, for analysis. Data subj...

A total of 210 pigs (initially 18.2 lb and 25 d of age) were used in a 21-d growth assay. The seven treatments consisted of a basal diet (14.1% CP) with increasing levels of threonine (45, 50, 55, 60, 65, and 70% of 1.07% apparent digestible lysine) and a negative control containing 0.97% lysine. Increasing dietary threonine improved feed efficiency; however, there was no improvement in growth ...

The effect of two digestible protein levels (310 and 469 g/kg DM) on the relative lysine (Lys; g Lys/kg DM or g Lys/100 g protein) and the absolute Lys (g Lys intake/kg 0.75 per d) requirements was studied in rainbow trout fry using a dose-response trial. At each protein level, sixteen isoenergetic (22-23 MJ digestible energy/kg DM) diets were tested, involving a full range (2-70 g/kg DM) of si...

Eighty first-litter sows in a commercial piggery were assigned to two feeding treatments during a 26-day lactation. A commercial diet containing an estimated 15% crude protein (CP), 0.65% lysine and 12.5 MJ digestible energy (DE)/kg was offered to sows in the control group which consumed 3.04 kg/day. Sows in the treatment group were given a higher quality diet containing 16.4% CP, 0.83% lysine ...

Comparative studies lasting between 59 - 63 days were carried out using the N-balance method to investigate effect of groundnut cake supplementation on N-metabolism and digestible crude protein (DCP)requirements three breeds steers maintained all-roughage rations hay fresh dry Cynodon rulenfuensis var robustus The results indicated that N intake (/day) Increased ed appreciably with supplementat...

two experiments were conducted to determine threonine (thr) requirements of two commercial strains, ross 308 and cobb 500, based on standardized ileal digestibility from 15 to 28d of age. basal diet consisted of wheat, triticale, and corn gluten meal was formulated according to quick chick (2006) to be adequate in all nutrients except for thr. incremental levels of supplemental thr were added t...

This investigation was carried out to determine the effects of different levels of digestible threonine on growth performance, dressing percentage and breast meat yield of broiler chicks. One hundred and twenty day old chicks were randomly divided into four groups A, B, C and D which were fed on four diets having (CP 21% and ME 2950 Kcal/kg) with four different levels of digestible threonine 0....

There is growing interest among consumers in foods for sustained energy management, and an increasing number of ingredients are emerging to address this demand. The SUSTRA™ 2434 slowly digestible carbohydrate is a blend of tapioca flour and corn starch, with the potential to provide balanced energy after a meal. The aim of the study was to characterize this starch's digestion profile in vitro (...

they should immediately start to drink and eat. A dense starter feed, high in energy and protein (with appropriate amounts of lysine and threonine), highly digestible for young chicks, is essential to reach target bodyweight. The high energy content of a starter diet should never be achieved by adding fat or oil containing saturated fatty acids, because young chicks cannot digest them. Vegetabl...