Effect of body weight on digestive utilization of energy and nutrients of ingredients and diets in pigs

Noblet, Jean; Shi, Xinyu

doi:10.1016/0301-6226(94)90126-0

Cited by 87 publications

(73 citation statements)

References 17 publications

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“…The results obtained for the C diet are in agreement with previous studies which showed that the BW of growing animals has no effect on the energy digestibility coefficient for highly digestible diets [9,21]. However, these studies also demonstrated that increased BW of pigs enhanced the energy digestibility coefficient of fibre-rich diets or fibrous ingredients in relation to greater digestibility of the DF fraction in heavier pigs.…”

Section: Influence Of Body Weight Of Pigs On Digestive Utilisation Ofsupporting

confidence: 90%

“…The lack of an effect of BW on the digestive utilisation of MB could be partly due to the smaller range of BW of pigs used in this study (34 kg) compared to that of previous studies (60 kg). Nevertheless, according to Noblet and Shi [21], the increase in energy digestibility with similar diets would be equivalent to 1.0 percentage point between 42 and 76 kg BW of pigs while the measured increase was a 0.6 percentage point (Tab. III).…”

Section: Influence Of Body Weight Of Pigs On Digestive Utilisation Ofmentioning

confidence: 99%

“…Apparent digestibility coefficients of organic matter, nutrients and energy of diets and their DE and ME contents were calculated using routine procedures [21]. Total tract digestibility coefficients of energy and nutrients and energy values of maize bran were determined using the difference method [21].…”

Section: Calculations and Statistical Analysesmentioning

confidence: 99%

“…Total tract digestibility coefficients of energy and nutrients and energy values of maize bran were determined using the difference method [21]. N retention was obtained as the difference between N intake and N losses in the faeces, urine, condensed water, and outgoing air.…”

Section: Calculations and Statistical Analysesmentioning

confidence: 99%

“…First, it has been clearly demonstrated that an increased DF level decreases the digestibility coefficients of energy and nutrients in growing pigs. This effect becomes less pronounced with increasing body weight (BW) of pigs [5,21]. The metabolic utilisation of energy is also expected to be affected since the net energy equations proposed by Noblet et al [17] and the biochemical approach of Dierick et al [7] indicate a greater heat increment of DF than of the other fractions.…”

Section: Introductionmentioning

confidence: 99%

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Influence of dietary fibre level on digestive and metabolic utilisation of energy in growing and finishing pigs

et al. 2002

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-The aim of the experiment was to determine the effect of dietary fibre (DF) level on the digestive and metabolic utilisation of energy in pigs. Two diets were prepared: a control low DF diet (the C diet, 100 g Total Dietary Fibre (TDF)·kg -1 DM) and a fibre-rich diet (200 g TDF·kg -1 DM) which corresponded to a combination of the C diet and maize bran (the MB diet). Each diet was fed as pellets during two successive experimental periods to five, individually caged pigs at growing (42 kg BW) and finishing stages (76 kg BW) for the measurement of digestibility, heat production (HP; indirect calorimetry) and its components. Energy supply was standardised between the diets (2.4 and 2.3 MJ ME·d -1 ·(kg BW) -0.60 for growing and finishing pigs, respectively). The energy digestibility was not affected by growth stage but was lower for the MB diet (83%) than for the C diet (91%). Similarly, the DE value of maize bran (11.5 MJ·kg -1 DM), as calculated by the difference method, was similar at both stages. The fasting HP represented 56% of HP and averaged 0.724 MJ·d -1 ·(kg BW) -0.60 while the physical activity and thermic effect of feed represented on average 14 and 30% of HP, respectively. None of the components of HP was affected by the DF level. The activity HP was greater in finishing (16% of HP) than in growing pigs (12%). Energy cost of standing was constant (kJ·min -1 ) when expressed per kg BW 1.25 . When adjusted for similar ME intake and activity level, total HP and retained energy did not differ between the diets and between the growth stages. In conclusion, the metabolic utilisation of dietary energy was little affected by the DF level in growing and finishing pigs under the conditions of the present study. et un régime enrichi en parois végétales (200 g de fibres totales par kg MS) où une fraction du régime T est remplacée par des drèches de maïs (régime DM). Chaque régime a été distribué successivement à 5 porcs au stade croissance (42 kg PV) et au stade finition (76 kg). Les animaux étaient maintenus individuellement en cage métabolique placée dans une chambre respiratoire afin de mesurer les coefficients d'utilisation digestive de l'énergie et des nutriments ainsi que la production de chaleur totale (calorimétrie indirecte) et ses composantes. Les niveaux alimentaires ont été égalisés à chaque stade (2,4 et 2,3 MJ EM·j -1 ·kg PV -0,60 pour les porcs en croissance et en finition, respectivement). Le coefficient d'utilisation digestive de l'énergie n'était pas différent selon le stade de croissance des animaux ; à chaque stade il était plus faible pour le régime DM (83 %) que pour le régime T (91 %). De la même façon, la valeur ED des drèches de maïs (11,5 MJ·kg -1 MS), déterminée à l'aide du calcul par différence, était comparable aux deux stades. La production de chaleur à jeun (0,724 MJ·j -1 ·kg PV -0,60 ) représentait en moyenne 56 % de la production de chaleur totale tandis que la production de chaleur liée à l'activité physique et l'effet thermique de l'aliment en représentaient 14 et 30 %, r...

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Section: Influence Of Body Weight Of Pigs On Digestive Utilisation Ofsupporting

confidence: 90%

Section: Influence Of Body Weight Of Pigs On Digestive Utilisation Ofmentioning

confidence: 99%