Measurement of precaecal dietary protein and plant cell wall digestion in pigs; comparison of four surgical procedures for ileorectal anastomosis

Laplace, J.P.; Souffrant, W. B.; Hennig, U.; Chabeauti, Elisabeth; Février, C.

doi:10.1016/0301-6226(94)90098-1

Cited by 39 publications

(31 citation statements)

References 24 publications

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“…Long-term effects of end-to-end ileo-rectal anastomosis, such as histological changes in the ileum and increased concentration of volatile fatty acids in the digesta were reported (Fuller 1991). However, these changes may affect ileal digestibility of organic matter and particularly that of fibre, but not that of N and AA (Fuller 1991;Laplace et al 1994;Bodin et al 1998).…”

Section: True Digestibility Values and Estimates Of Endogenous Aa Lossesmentioning

confidence: 99%

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Ileal amino acid digestibility and estimates of endogenous amino acid losses in pigs fed rapeseed meal, sunflower meal and soybean meal

Jondreville¹,

Broecke²,

Gatel³

et al. 2000

Can. J. Anim. Sci.

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. Ileal amino acid digestibility and estimates of endogenous amino acid losses in pigs fed rapeseed meal, sunflower meal and soybean meal. Can. J. Anim. Sci. 80: 495-506. Four commercial samples of rapeseed meal (RSM), four of sunflower meal (SFM) and nine of soybean meal (SBM) were analysed and their ileal N and amino acid (AA) digestibilities in growing pigs were studied. Each batch was tested on four castrated male pigs weighing between 40 and 100 kg and fitted with an end-to-end ileo-rectal anastomosis. True ileal digestibility (TD) of AA was calculated by correcting apparent ileal digestibility (AD) for basal endogenous AA losses, measured by means of a protein-free diet. For RSM and SBM, total endogenous gut AA losses were estimated by a multiple regression model and real ileal digestibility (RD) of AA was calculated. In RSM, average TD of lysine, threonine and methionine were 70.7, 73.2 and 86.0%, respectively. These values were 80.0, 81.8 and 91.9%, respectively in SFM and 90.5, 86.8 and 93.0%, respectively, in SBM. In SBM, TD decreased (P < 0.05) with increases in the ratio of dietary acid detergent fibre (ADF) to AA contents. Expressed as g kg -1 dry matter (DM) intake, total endogenous gut N losses reached 4.7 to 6.4 for RSM and 1.9 to 3.5 for SBM. For SBM, they increased (P < 0.001) with dietary ADF concentration and RD of most AA decreased (P < 0.05) with the increase in the ratio of dietary neutral detergent fibre (NDF) to AA concentrations.

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Section: True Digestibility Values and Estimates Of Endogenous Aa Lossesmentioning

confidence: 99%

“…However, some differences in age or LW appeared between groups and some samples of oilseed meal, within the same group, were evaluated in heavier pigs. Therefore, it was assumed that age, LW or time effects did not influence observed digestibility values (Laplace et al 1994;Bodin et al 1998).…”

Section: Animals and Proceduresmentioning

confidence: 99%

Ileal amino acid digestibility and estimates of endogenous amino acid losses in pigs fed rapeseed meal, sunflower meal and soybean meal

Jondreville¹,

Broecke²,

Gatel³

et al. 2000

Can. J. Anim. Sci.

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“…Increasing the muscle layers in the small intestine of pigs has been related to a higher resistance to digesta passage (Redlich et al, 1997). Laplace et al (1994) also suggested that a slower passage of time of the digesta may increase the prececal transit time and, thus, the time in which the digesta remains in the small intestine, improving nutrient digestion and absorption. However, when considering the coefficients of TTAD obtained in the present experiment, only minor differences between porcine genotypes are found.…”

mentioning

confidence: 99%

Effects of pig genotype (Iberian v. Landrace × Large White) on nutrient digestibility, relative organ weight and small intestine structure at two stages of growth

Barea

Nieto

Vitari

et al. 2011

Animal

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Although the effects of pig genotype on total-tract apparent digestibility (TTAD) have been widely reported in the literature, there is controversial information on the digestive capacity of indigenous breeds compared with lean-type pigs. The strategy of this study was to test the effects of pig genotype and crude protein (CP) supply on performance, digestive utilization of nutrients, relative organ weight and morphometric analysis of the small intestine. Thirty-eight Iberian (IB) and Landrace 3 Large White (LD) pigs were used. Three pigs per genotype were slaughtered at approximately 15 kg BW. The remaining pigs were fed one of two diets differing in CP content (13% or 17% as fed) using a pair-fed procedure. Feeding level was restricted at 0.8 3 ad libitum of IB pigs. Nutrient digestibility and nitrogen (N) balance trials were performed at 30 and 80 kg BW. Four pigs per dietary treatment and genotype were slaughtered at approximately 50 and 115 kg BW. The gastrointestinal tract and the rest of the visceral organs were weighed and samples of the small intestine were taken to carry out histological and histometrical studies. Daily gain and gain-to-feed ratio were higher in LD than in IB pigs during the fattening and growing-fattening periods ( P , 0.01). N TTAD was significantly higher for LD pigs at 30 kg BW ( P , 0.05), whereas at 80 kg BW we observed greater values for digestibility of organic matter and energy in IB pigs (averaging 1.5%, P , 0.01). Both N retention (NR) and efficiency of NR were increased in LD pigs at 30 and 80 kg BW (30% as mean value). The proportional weight of the small intestine was greater in LD than in IB pigs at 50 and 115 kg BW. Histometry showed that IB presented a lower muscle layer thickness than LD pigs in ileum, irrespective of the BW ( P , 0.05). In contrast, LD pigs showed approximately 10% higher ileal villi length and villi-to-crypt ratio than IB pigs at 115 kg BW. CP supply affected to a larger extent the small intestinal micro-anatomical structure of LD pigs at 50 kg BW. In conclusion, our results suggests that although the higher growth rate, NR and efficiency of NR observed in LD pigs might be associated with presumably more efficient structural aspects of the small intestine, the main differences between the two genotypes should be attributed to a larger extent to protein and energy utilization in tissues with consequences for the overall efficiency of energy use.

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“…Animals and experimental design Five castrated males (Pié train 3 (Large White 3 Landrace)) with an initial body weight of 35 kg were surgically modified according to the ileo-rectal anastomosis technique as described by Laplace et al (1994). After 3 weeks of recovery, the pigs were individually housed in metabolism cages in an environmentally controlled room, and allotted to one of the five dietary treatments according to a 5 3 5 Latin square design.…”

Section: Methodsmentioning

confidence: 99%

Ileal digestibility of amino acids of cassava, sweet potato, cocoyam and erythrina foliages fed to growing pigs

Régnier

Jaguelin

Noblet

et al. 2012

Animal

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Ileal digestibility in growing pigs fed starch-based diets with inclusion of four tropical leaves in a meal form was studied in a 5 3 5 Latin square design. Five diets were formulated with only casein as protein source in the basal diet (CAS), and casein plus dry cassava (CA) leaves, casein plus dry sweet potato (SP) leaves, casein plus dry cocoyam (CO) leaves and casein plus erythrina (ER) leaves in the other four diets. All diets contained the same amount of CP (14%), either provided by only CAS or a combination of casein and 250 g of leaf meal per kg of diet in the other diets. Leaves were separated manually from stems, and only the leaf part was used. A protein-free diet was fed during a sixth period in order to estimate the endogenous protein losses and calculate the CP-and amino-acid (AA)-standardized ileal digestibility (SID) values. The values for the foliages were calculated according to the difference method, assuming no interaction between the foliage and the casein. The ileal tract apparent digestibility of CP, organic matter and energy was higher in diet CAS than in the other diets (P , 0.05). The SID of CP and AA was close to 0.950 for casein, whereas the SID of AA was markedly lower in the foliages; the SID of indispensable and dispensable AA was highest in CO (0.500 and 0.352) and lowest in ER (0.170 and 0.195); intermediate values were obtained for SPs (0.367 and 0.349) and CA (0.232 and 0.242) leaves. Accordingly, the SID of lysine was highest (0.538) for CO leaves and lowest (0.126) in ER leaves; intermediate values were measured for CA and SP leaves. These low SID values in foliage meals must be related to the high levels of dietary fibre and the presence of secondary metabolites (tannins). These results suggest that it is only possible to replace a fraction of the conventional protein sources such as soyabean meal by tropical foliages in growing pig diets with a preference for CO leaves.

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Measurement of precaecal dietary protein and plant cell wall digestion in pigs; comparison of four surgical procedures for ileorectal anastomosis

Cited by 39 publications

References 24 publications

Ileal amino acid digestibility and estimates of endogenous amino acid losses in pigs fed rapeseed meal, sunflower meal and soybean meal

Ileal amino acid digestibility and estimates of endogenous amino acid losses in pigs fed rapeseed meal, sunflower meal and soybean meal

Effects of pig genotype (Iberian v. Landrace × Large White) on nutrient digestibility, relative organ weight and small intestine structure at two stages of growth

Ileal digestibility of amino acids of cassava, sweet potato, cocoyam and erythrina foliages fed to growing pigs

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