The effect of genotype and dietary fibre level on the caecal bacterial enzyme activity of young piglets: digestive consequences

Freire, João P. B.; Dias, R.I.M; Cunha, L.F.; Aumaı̂tre, A.

doi:10.1016/s0377-8401(03)00003-8

Cited by 25 publications

(29 citation statements)

References 28 publications

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“…In the present study, increased fibre level in the diet resulted in greater weight of the GIT (except for small intestine and caecum), in agreement with others (Freire et al, 2000 and2003;Len et al, 2009a), whereas the length of the GIT was unaffected by diet. However, there were no differences in the weight of the GIT between the diets HF-CR and HF-BG, which could be due to the small difference in soluble fibre content between the HF diets.…”

Section: Discussionsupporting

confidence: 93%

“…Consequently, different breeds probably have different responses to diets in terms of nutrient digestibility and growth performance. The different response between breeds could be related to the development of the digestive capacity (Len et al, 2009a) and the composition of diets, especially dietary fibre (DF) level and fibre sources (Freire et al, 2003;Borin et al, 2005;Len et al, 2009a and2009b).…”

Section: Introductionmentioning

confidence: 99%

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Impact of fibre intake and fibre source on digestibility, gut development, retention time and growth performance of indigenous and exotic pigs

Ngoc

Len

Lindberg

2013

Animal

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The impact of fibre level and fibre source on digestibility, gastrointestinal tract (GIT) development, total tract mean retention time (MRT) and growth performance was studied in indigenous Mong Cai (MC) and exotic Landrace 3 Yorkshire (LY) pigs. The diets were based on maize, rice bran, soyabean meal, fish meal and soyabean oil, and cassava residue (CR) or brewer's grain (BG) as fibrous ingredient sources in the high-fibre diets (HF) and were fed ad libitum. A low-fibre diet (LF), containing around 200 g NDF/kg dry matter (DM), was formulated without CR and BG as feed ingredients. The HF diets (HF-CR and HF-BG) were formulated to contain around 270 g NDF/kg DM. The experiment was arranged as a 2 3 3 factorial completely randomized design with six replications, and lasted 27 days. Increased dietary fibre level resulted in a reduction (P , 0.05) in average daily gain, digestibility of organic matter (OM), CP and gross energy (GE) at the ileum and in the total tract, and in MRT, and an increase (P , 0.05) in the feed conversion ratio and in the weight of the GIT (except for small intestine and caecum). The coefficients of total tract digestibility of fibre fractions were higher in HF diets than in the LF diet, with highest values for diet HF-CR, which had a high proportion of soluble non-starch polysaccharides. MC pigs had longer MRT of digesta than LY pigs (P , 0.05), resulting in higher digestibility at the ileum and in the total tract. Across diets and breeds, the total tract apparent digestibility of OM, CP and GE was positively related (R 2 5 0.80 to 0.84) to the MRT of solids, whereas the MRT was negatively related to the DM intake (R 2 5 0.60).

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Impact of fibre intake and fibre source on digestibility, gut development, retention time and growth performance of indigenous and exotic pigs

Ngoc

Len

Lindberg

2013

Animal

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“…In contrast, Morales et al (2002) and Rivera-Ferre et al (2006) found lower TTAD coefficients for Iberian pigs (IB) when compared with Landrace pigs at the same stage of growth (fattening (90 to 110 kg BW) and post-weaning (25 to 35 kg BW) pigs, respectively), which may contribute to explaining the poorer nutrient utilization of the IB genotype. In other studies, higher TTAD coefficients of indigenous pigs has been related to differences in total weight of the gastrointestinal tract (GIT), in enzymatic and microbial activity of the gut and in digesta passage rate (Freire et al, 2003). Nevertheless, little information is available in the literature relating TTAD coefficients to micro-anatomical structure of the intestine, which is often referred to in studies on weaning piglets, in which the structural aspects of the intestine have not necessarily reached 'mature' morphology (Salgado et al, 2002;Liu et al, 2008).…”

Section: Introductionmentioning

confidence: 97%

“…Nevertheless, there is controversial -E-mail: jose.aguilera@eez.csic.es information on the digestive capacity of indigenous pig breeds compared with lean-type pigs. Some authors have reported higher TTAD coefficients in obese-type pigs compared with lean pigs (Fé vrier et al, 1992;Freire et al, 2003). In contrast, Morales et al (2002) and Rivera-Ferre et al (2006) found lower TTAD coefficients for Iberian pigs (IB) when compared with Landrace pigs at the same stage of growth (fattening (90 to 110 kg BW) and post-weaning (25 to 35 kg BW) pigs, respectively), which may contribute to explaining the poorer nutrient utilization of the IB genotype.…”

Section: Introductionmentioning

confidence: 99%

“…As cited above, the reported data concerning variation in the TTAD coefficients and/or digestive capacity between indigenous pig breeds and lean-type pigs are controversial. Some authors support that indigenous pigs are able to digest dietary nutrients and energy better than lean-type pigs due to an increased activity of microflora and digestive enzymes in the GIT or to a higher retention time of digesta in the hindgut in experiments carried out under similar feed intake for both pigs types (Kemp et al, 1991;Freire et al, 2003) or at higher ADFI for obese pigs (Len et al, 2009). In contrast, there are some reports, in which selection for higher protein deposition in lean-type breeds is associated to greater nutrient and energy digestibility and lower rate of digesta passage (Varel et al, 1988;Ly et al, 1998).…”

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confidence: 99%

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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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In vitro digestibility of four high moisture grains used in liquid pig feeding

Chaves

Martins

Vasconcelos

et al. 2022

Trop Anim Health Prod

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One of the main challenges in the livestock sector is the need to increase sustainability and production efficiency. In pig production, feed is the main production cost. High moisture grains (HMGs) have recently emerged as an interesting alternative to conventional feedstuffs. In this study, the nutritional value for pigs of eight HMGs was determined considering the chemical composition and the in vitro digestibility. We have used four seeds (lupine, barley, wheat, and corn) and two substrates (water and whey). Lupine HMG showed higher values of crude fat (2.12%) and crude protein (8.59%). Within cereal HMGs, corn HMG showed higher DM (34.37%), OM (36.27%), and starch (27.17%) values; wheat HMG stood out for crude protein content (4.23%) and barley for NDF (5.68%). The pH values were low for all HMG, with lupine having the highest value (4.39). Ammoniacal nitrogen had the highest value for wheat HMG (6.10%). When whey was used as substrate, it improved the characteristics of the HMG. Regarding in vitro digestibility, of the four HMGs studied, wheat showed the highest value for DM (89.93%), while lupine showed the highest value for crude protein (96.12%). When considering the substrates, whey showed better results for all in vitro digestibility's parameters (87.48%, 90.95%, and 90.59%, for DM, OM, and crude protein, respectively). Overall, all HMGs showed good conservation of nutritional value and high in vitro digestibility. The use of whey as a substrate was beneficial for HMG quality. Results show that the analyzed HMG can be efficiently used in the framework of swine production.

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The effect of genotype and dietary fibre level on the caecal bacterial enzyme activity of young piglets: digestive consequences

Cited by 25 publications

References 28 publications

Impact of fibre intake and fibre source on digestibility, gut development, retention time and growth performance of indigenous and exotic pigs

Impact of fibre intake and fibre source on digestibility, gut development, retention time and growth performance of indigenous and exotic pigs

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

In vitro digestibility of four high moisture grains used in liquid pig feeding

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