نتایج جستجو برای: feed phase
تعداد نتایج: 661467 فیلتر نتایج به سال:
This study evaluated the effect of 2 levels (0 vs. 8%) of distillers dried grains with solubles (DDGS) in a starter broiler diet (0 to 14 d; 45 replicates/treatment) after these same birds were subsequently fed a grower diet (14 to 28 d) with either 0, 7.5, 15, 22.5, or 30% DDGS (9 replicates/treatment). Ross×Ross 308 male broilers were used in this experiment, and evaluation criteria consisted...
An experiment was conducted to investigate the effects of dietary supplementation with citrus pulp, fish by-product, and Bacillus subtilis fermentation biomass on the growth performance, apparent total tract digestibility (ATTD) of nutrients, and fecal microflora of weanling pigs. A total of 180 weaned piglets (Landrace × Yorkshire × Duroc) were randomly allotted to three treatments on the basi...
AIMS Probiotic milk-based formulations were spray-dried with various combinations of prebiotic substances in an effort to generate synbiotic powder products. METHODS AND RESULTS To examine the effect of growth phase and inclusion of a prebiotic substance in the feed media on probiotic viability during spray-drying, Lactobacillus rhamnosus GG was spray-dried in lag, early log and stationary ph...
vibration cutting (vc), elliptical vibration cutting (evc) and ordinary cutting (oc) of in738 work-pieces have been experimentally investigated in the present research. the experiments were carried out by using single crystal diamond tool and ultra-precision cnc lathe. vibration frequency is 36.16khz and the amplitude is . the influence of various cutting parameters including cutting speed, fee...
an experiment was conducted to investigate the effect of zinc (zn) supplementation and different concentrations of calcium (ca) and phosphorus (p) in wheat-based diets on the performance, immune responses and bone parameters of broiler chickens. a randomized complete block design with factorial arrangement was used (three concentrations of zn supplementation×two concentrations of dietary ca-p),...
A dual-frequency Q-/K-band circularly polarized feed with electronic tracking capability was developed. Four circumferentially located, externally coupled, diode controlled, resonant cavities were used at the horn throat to produce phase-center lateral movement. When used to feed a 24-in-diam. offset paraboloidal reflector, an average beam squint from boresight of 10 percent of the 3-dB beamwid...
Increasing concentrations of vitamin B 12 were fed to 144 weanling pigs (weaned 13-14 days) in two, five-week trials. Pigs were fed one of six diets: NC, negative control, basal diet without supplemented vitamin B 12 ; or the basal diet with the inclusion of 100% (1X, 7.94 μg/lb), 200% (2X, 15.87 μg/lb), 400% (4X, 1.75 μg/lb), 800% (8X, 6.49 μg/lb), or 1,600% (16X, 126.98 μg/lb) of NRC re...
Five hundred forty crossbred pigs were utilized in four trials (10 replications) at two stations to determine the separate and interacting effects of decreasing floor space allowance with or without the addition of virginiamycin to the diet on performance of growing-finishing pigs. Pigs were allowed .37, .33 or .28 m2/pig during the growing phase (23 to 55 kg) and .74, .66, .56 m2/pig during th...
The objective of this study was to examine the effect of including steamed rolled oats in the nursery diet on pig performance. Pigs were fed diets with 10% oats in the phase 1 diet (day 0-10 post-weaning) and 5% in the phase 2 diet (day 10-28 post weaning). There were 5 pens of 7-8 pigs each on the control and oat diets. Pigs fed the oat diets had greater gain from day 0-10 and overall. Feed in...
The discussion of effects of recombinant bovine somatotropin (rbST) administration on the metabolism of lactating dairy cows presented is divided into two parts: short term and long term. Short-term effects are evident during the initial period of treatment when milk production is increased but feed intake has not yet increased. During this period body reserves are mobilized to support the high...
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