The animals were kept in single pens and fed with different levels of feed (70%, 80 %, 90 % and 100of ad libitum intake).
The aim of this study was to study feeding motivation in dairy cows by measuring cows' motivation to walk for food at different levels of feed deprivation.
The current study investigated the effects of different levels of feed intake during 4 short periods of gestation and of housing systems on sow and litter performance.
During the 4 periods, sows were fed 1 of 4 different levels of feed intake: 0.5, 1.0, 1.5 and 2.0 × maintenance energy level (0.5 M, 1.0 M, 1.5 M and 2.0 M, respectively).
Three hundred mixed parity sows of a high prolificacy genetic line were used to evaluate the impact of the supplementation of different levels of feed flavor during lactation on their productive and reproductive performance under tropical conditions.
Each cow was randomly allocated to one of four different levels of feed deprivation (0, 3, 6 or 9 h) and then given the opportunity to walk a number of consecutively increasing distances along a race in a U-turn to obtain a specified amount of food (increasing distance by 20 m starting at 20 m).
Various compositions of maleated ethylene-propylene-rubber (EPR-g-MA) toughened polyamide 6 without and with short glass fiber, i.e. 5 20 wt.% rubber and 5 20 wt.% fiber, are prepared using an industrial twin-screw extruder at different levels of feed rate (100 250 kg/h), screw speed (200 450 rpm) and barrel temperature (230 260 °C).
So far we have been considering a scenario where pairs of interacting microbial genotypes engaging in different levels of cross-feeding grow in two isolated patches or colonies [17].
The effects of feeding different levels of forages and concentrate, in a discontinuous feeding pattern, on the efficiency of feed utilisation and rumen function were studied using rumen fistulated sheep.
According to orthogonal array of L27, twenty-seven experiments were conducted on the workpiece with carbide end mill cutter at different levels of spindle speeds, feeds and depth of cuts.
