Use of digestible fibre in replacement to available carbohydrates

Gidenne, T.; Bellier, R.

doi:10.1016/s0301-6226(99)00123-2

Cited by 43 publications

(5 citation statements)

References 22 publications

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“…In fact, increased PUFA concentrations in the milk of does supplemented with fish oil has been demonstrated in a previous study by our group [9]. Variations in total VFA concentration and pH values over the fattening period, which increased and decreased with advanced age, respectively, were in accordance with results from previous studies [4,72].…”

Section: Discussionsupporting

confidence: 91%

Supplementation with Fish Oil Improves Meat Fatty Acid Profile although Impairs Growth Performance of Early Weaned Rabbits

Rodríguez

Carro

Valiente

et al. 2019

Animals

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Our objective was to analyze the influence of replacing lard (control) with fish oil (FO) rich in long-chain n-3 polyunsaturated fatty acids in the diet of rabbits weaned at 25 days of age on their growth performance, meat quality, cecal fermentation, and ileal morphology. Twenty-four litters (12 control and 12 FO) of nine kits each were fed the experimental diets from weaning (25 days) until slaughter at 60 days of age. Half of the litters (six per diet) were used to monitor productive performance, carcass characteristics, and ileal morphology, and cecal fermentation was assessed in the rest of litters. Diet had no influence on feed intake, meat color, and pH or cecal fermentation, but FO-fed rabbits had lower (p ≤ 0.049) average daily gain, chilled carcass weight, and perirenal fat than control rabbits. Fish oil inclusion in the diet resulted in lower morbidity (5.56% vs. 20.4%; p = 0.019) and a healthier fatty acid profile with lower (p < 0.001) n-6/n-3 ratios in both muscle and perirenal fat. In summary, the inclusion of FO in the diet of early weaned rabbits improved the fatty acid profile of rabbit meat and fat and decreased the morbidity, but growth performance was slightly reduced.

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Section: Discussionsupporting

confidence: 91%

Supplementation with Fish Oil Improves Meat Fatty Acid Profile although Impairs Growth Performance of Early Weaned Rabbits

Rodríguez

Carro

Valiente

et al. 2019

Animals

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“…Rabbit does received the same experimental diet than their litters during gestation and lactation, and therefore differences in cecal VFA concentrations at weaning (30 d) might be partly due to differences in milk FA profile, as it has been shown that supplementing the diet of does with fish oil resulted in increased n-3 PUFA content in milk (Febrel et al, 2015). In agreement with previous observations (Gidenne and Bellier, 2000), total VFA concentrations increased (P < 0.001) and molar proportions of acetate and butyrate decreased (P < 0.001) and increased (P < 0.001), respectively, from 30 to 60 d of age. Cecal pH decreased (P < 0.001) with age, which is in accordance with the increased VFA concentrations observed overtime.…”

Section: Cecal Fermentation and Ileal Morphologysupporting

confidence: 92%

Effects of dietary fish oil supplementation on performance, meat quality, and cecal fermentation of growing rabbits

Rodríguez¹,

Carro²,

Valiente³

et al. 2017

Journal of Animal Science

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The objective of this study was to investigate the effect of dietary supplementation with fish oil on growth performance (during all fatening period), carcass characteristics and fatty acid (FA) profile of muscle and fat tissues (at slaughter), as well as cecal fermentation and ileal mucosa morphology of growing rabbits (at 30, 45, and 60 d of age). Two isonitrogenous and isoenergetic diets, only differing in their fat source, were formulated and provided each to 24 does (12 per diet) and their offspring during pregnancy and lactation. The control diet contained 4.59 g of n-3 per 100 g of total FA, and the enriched diet contained 14.9 g of n-3 per 100 g of total FA. From weaning (30 d of age) to slaughter (60 d), the litters (12 per diet; 8 kits each) continued fed the corresponding experimental diet. There were no differences ( > 0.05) between groups in ADFI, ADG and G:F ratio during the growing period. At slaughter, BW, full gastrointestinal tract weight, carcass yield, meat color and pH, drip loss percentage, content of scapular fat and tissue composition of the left hind leg were similar between groups ( > 0.05), but perirenal fat was lower ( = 0.020) and skin weight and abdominal fat tended to be lower ( = 0.055 and = 0.063, respectively) in enriched rabbits than in control ones. Total PUFA content in both LM and perirenal fat was greater ( = 0.021 and < 0.001, respectively) in enriched rabbits, that also showed lower n-6/n-3 ratios in LM (1.61 vs. 5.80; < 0.001) and perirenal fat (4.71 vs. 12.0; < 0.001) than those fed the control diet. Cecal concentrations of total VFA were greater ( < 0.001) in enriched than in control group at 30, 45 and 60 d of age, but diet did not affect ( ≥ 0.332) VFA profile, with the exception of a lower ( = 0.013) proportion of minor VFA (sum of isobutyrate, isovalerate, and valerate) in control group. Diet did not affect ( > 0.255) either pH and NH-N concentrations in the cecum or ileal morphology (crypt depth and villi length). The results showed that dietary fish oil supplementation enhanced beneficial long-chain n-3 FA and decreased n-6/n-3 ratio in rabbit meat and fat, being healthier for human consumption, without having negative effects on growth performance, cecal fermentation, and ileal morphology or carcass characteristics.

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“…Fibre source has an important role in regulation of the intestinal transit, gut flora and the intestinal mucosa integrity of rabbits (De Blas et al, 1999;Fortun-Lamothe and Boullier, 2007) and it has been observed that the digestibility of DM, organic matter, CP, EE, NDF, ADF and energy is affected by the source of fibre. The improvement in the nutrient apparent digestibility and the nutritive value of diets with decreasing NDF is well established (Gidenne and Bellier, 2000;Xiccato et al, 2002). In our study, we observed that higher SH inclusion in diet impaired digestibility of NDF and ADF.…”

Section: Cttad Of Nutrients In Experimental Dietssupporting

confidence: 64%

Effect of substituting guinea grass with sunflower hulls on production performance and digestion traits in fattening rabbits

et al. 2018

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The objective of this study was to evaluate the use of sunflower hulls (SH) to substitute guinea grass (GG), traditionally used as a fibre source in the diets of fattening rabbits, on production performance, coefficients of total tract apparent digestibility (CTTAD) of nutrients, gastrointestinal tract development and caecal fermentation. A total of 160 mixed sex Hyla commercial meat rabbits were allocated to 4 experimental groups (40 per treatment) differing in the SH level inclusion in the diet offered to rabbits from 40 to 90 d of age: 0, 30, 60 and 90 g/kg on as-fed basis: SH0, SH30, SH60 and SH90 groups, respectively. Growth performance was recorded from 47 to 90 d of age, CTTAD of nutrients from 86 to 90 d of age, and gastrointestinal tract development, caecal fermentation and carcass traits were determined at 90 d of age. Increasing substitutions of SH in the diet indicated effects on growth performance, as higher feed intake and lower feed efficiency were observed in SH90 compared with SH0 (P-linear<0.05). Moreover, the higher SH substitution diet (SH60 and SH90) increased the relative caecum weight (P-linear<0.05). A linear negative effect of SH inclusion was observed for the digestibility of neutral detergent fibre (CTTAD from 0.294 to 0.232) and acid detergent fibre (CTTAD from 0.182 to 0.136; P-linear<0.05). Dietary SH substitution level had a quadratic effect on the villus height of the duodenum, jejunum and ileum obtained (P-quadratic<0.05), and the highest were observed in the SH60 group. There was a quadratic effect on the pH of caecum content (P-quadratic<0.05), and the lowest was 6.08 in SH30 group. The total volatil fatty acids increased linearly with increasing SH in diets (from 71.11 to 76.98 mmol/L; P-linear<0.05), and when dietary SH increased, the proportion of acetate tended to increase (P-linear<0.05), and the proportions of propionic and butyric were decreased (P-linear<0.05, respectively). Substitution of GG with SH had no effect on carcass characteristics and meat quality. The current work shows that SH can replace up to 60 g/kg in diets for fattening rabbits, with no adverse impact on aspects of production performance or digestion traits.

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Use of digestible fibre in replacement to available carbohydrates

Cited by 43 publications

References 22 publications

Supplementation with Fish Oil Improves Meat Fatty Acid Profile although Impairs Growth Performance of Early Weaned Rabbits

Supplementation with Fish Oil Improves Meat Fatty Acid Profile although Impairs Growth Performance of Early Weaned Rabbits

Effects of dietary fish oil supplementation on performance, meat quality, and cecal fermentation of growing rabbits

Effect of substituting guinea grass with sunflower hulls on production performance and digestion traits in fattening rabbits

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