Influence of the incorporation mode of sugar beet pulp in the finishing diet on the digestive tract and performances of geese reared for foie gras production

Abstract

The aim of this work was to study the effects of incorporating sugar beet pulp (SBP) into the diet of geese in two feeding systems (complete pelleted feed or loose-mix feeding system) on crop development and performance. A total of 480 1-d-old male geese were divided into three groups whose diet differed from d 56 to 90: a complete pelleted diet containing 50% corn (control diet: AME n 11.5 MJ/kg; CP 161 g/kg), and no SBP; a complete pelleted diet containing 50% corn and 10% SBP (SBP cp diet: AME n : 11.5 MJ/kg; CP: 161 g/kg); and a mix in the same feeder (SBP lm diet) of 500 g/kg of protein-rich pellets containing 20% SBP (SBP prp : AME n : 9.0 MJ/kg; CP: 250 g/kg) and 500 g/kg of whole corn (WC: AME n : 14.0 MJ/kg; CP: 72 g/kg). Body traits, including crop volume, were measured at d 91. From d 91 to 106, 88 birds/group were overfed with a mixture containing mainly corn and water before slaughter to measure fatty liver performance. Feed intake from d 56 to 90 was higher (+10%; P = 0.004) in the SBP cp group than the other two, but at d 90, the body weight (BW) of the birds was higher (+7%; P = 0.002) in the SBP lm group than the other two. At d 91, the volume of the crop was greater in the SBP cp group (80.4 mL/kg of BW, P < 0.001) than in the control group (60.3 mL/kg of BW), the SBP lm group being intermediate (64.1 mL/kg of BW). Feed intake (13,321 g), weight gain (2,733 g), and feed-to-gain ratio (4.9) during the overfeeding period, as well as fatty liver weight (963 g) and commercial grading, were similar (P > 0.05) between the three groups. In conclusion, the use of sugar beet pulp in the diet of finishing geese helps the adaptation of the digestive tract to the overfeeding period, even in a loose-mix feeding system based on whole corn.

Comparison of the composition and sensory characteristics of goose fatty liver obtained by overfeeding and spontaneous fattening

“…The liver weight in the initial population from the conventional system was higher (mean weight > 1 kg; Table 1) than that usually reported in literature (between 600 and 960 g; Salichon et al, 1994; Davail et al, 2000; Mourot et al, 2006; Su et al, 2009; Arroyo et al, 2017). However, a direct comparison of different studies is difficult because fatty liver weight varies greatly depending on the pattern of corn delivery and environmental conditions during overfeeding.…”

The intestinal microbial composition in Greylag geese differs with steatosis induction mode: spontaneous or induced by overfeeding

“…Eighty five male 43-day-old Greylag Landaise geese (Maxipalm®; Anser anser) were reared in housing, feeding and management conditions as previously described [20] given a grower-finisher diet (Apparent metabolizable energy corrected for nitrogen (AMEn) 11.5 MJ/kg, Crude Protein (CP) 161 g/kg) ad libitum until 56 days of age. After that, access to the grower finisher diet was limited to 2 to 3 h/day.…”

“…1), and body weight (BW) at 91 days was standardized between the two systems. In the conventional system, birds were overfed from 91 to 107 days of age in housing, feeding and management conditions previously described by Arroyo et al [20]. Birds were given a corn mixture composed of 34% of corn flour, 24% of whole corn, 40% of water, and 2% of vitamins.…”

Effect of dietary calcium and phosphorus levels on growth, carcass characteristics and liver and kidney functions of growing Egyptian geese

“…They consume large amounts of green grass, clover, and some plants. When economically feasible, these growing rates and dietary concerns must be accommodated in feeding programs ( Arroyo et al, 2017 ; Abou-Kassem et al, 2019 ; Alagawany et al, 2020a , b ). In terms of overall production and marketing, waterfowl production has remained relatively static; because there are currently very few internationally recognized commercial breeders, performance has become more standardized, specialized, and widespread ( Zhu et al, 2011 ; Ashour et al, 2020 ).…”