Effects of sequential feeding with low- and high-protein diets on growth performances and plasma metabolite levels in geese

Abstract

This study was conducted by two trials to investigate effects of sequential feeding with low-and high-protein diets on growth traits and plasma metabolites in geese. In Trial I, the effect of sequential feeding under time-restricted feeding system was investigated. Seventy-two White Roman goslings were randomly allotted into either sequential feeding (S1) or control feeding (C1) group. All goslings were fed for 1 h at morning and at evening, respectively, from 2 to 8 weeks of age. S1 group was offered 13% CP diet at morning and 19% CP diet at evening. C1 group was offered the same diet (16% CP; mixed equally with the two diets mentioned above) at both morning and evening. Blood samples were hourly collected for 4 h after feeding at both morning and evening for the determination of the postprandial plasma levels of glucose, triacylglycerol and uric acid at the end of experiment. Results showed that BW, average daily gain (ADG), and daily feed intake (FI) were not different between groups, but the feed efficiency (FE) in S1 group was significantly higher than that in C1 group ( P < 0.05). The areas under curve (AUC) of plasma postprandial levels of glucose, triacylglycerol and uric acid were not affected by treatment, but the AUC of triacylglycerol and uric acid in morning were lower than those in evening ( P < 0.05). In Trial II, the effect of sequential feeding under ad libitum feeding system was investigated. Twenty-four goslings were randomly allotted into either sequential feeding (S2) or control feeding (C2) group. Diets were altered at 0600 and 1800 h, respectively, and geese were fed ad libitum from 4 to 8 weeks of age. S2 group was offered 14% CP diet at morning and 20% CP diet at evening. C2 group was supplied the same diet (mixed with the two diets according to the ratio of diets consumed by S2 group on the preceded day) at both morning and evening. Results showed that the ADG in S2 group was higher than those in C2 group ( P < 0.05). Summarized data from both trials showed that sequential feeding improves daily gain and FE in growing geese.

Gastrointestinal Development and Microbiota Responses of Geese to Honeycomb Flavonoids Supplementation

“…Therefore, how the intestinal development and the gut constituent shaped the herbivority of geese fascinated researchers. Previous studies indicated the geese could also be reared like chickens with high-concentrate diets ( 18 ), and the growth performances changed with different nutritional levels ( 19 , 20 ). Whereas, the geese gut microbiota profiles and their interactions with epithelial cells are still of limited cognition.…”

Sequential feeding with high-fat/low-crude protein diets for two lines of growing-finishing pigs under daily cyclic high ambient temperature conditions1

“…As feed represents a large part of the cost of pig production and the energy component represents the greatest proportion of feed cost (Noblet, 2007;Velayudhan et al, 2015), the SEQ feeding program may be economically advantageous than the HF/ LP program since SEQ pigs had the best values for energy cost of gain and NE intake in the growing 2 and finishing phases, respectively. Accordingly, sequential feeding with low and high-protein diets improved the weight gain (10%) and feed efficiency (8%) in growing geese exposed to ambient temperature variations between 22°C and 29°C (Ho et al, 2015). In contrast, no effect of sequential feeding with diets varying in CP and energy content was observed in male broilers reared at a constant ambient temperature of 37°C (Bouvarel et al, 2004).…”