Einfluß einer abgestuften Proteinversorgung bei hohem Energieniveau auf die Mastleistung sowie den Ansatz und die Verwertung von Futterenergie, Protein und Aminosäuren durch weibliche Mastschweine

Wünsche, J.; Meinl, Dipl.-Biol. Marlis; Hennig, U.; Kreienbring, F.; Bock, H.

doi:10.1080/17450398209435874

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…It is well documented and supported by the present study that in pigs restricted protein supply decreases weight gain, lean tissue growth, carcass growth and N accretion, but is associated with enhanced fat retention and increased food : gain ratio (Hennig, Wuensche, Meini, Borgmanns, Kreienbring and Bock, 1982;Wuensche, Meini, Hennig, Kreienbring and Bock, 1982;Zhang, Partridge and Mitchell, 1982;Hofstetter, 1987;Campbell, Taverner and Curie, 1988). The non-carcass weight was more reduced in the group receiving low than in the one receiving adequate amounts of protein.…”

Section: General Aspectssupporting

confidence: 79%

Effects of a β-andrenergic agonist on growth performance, body composition and nutrient retention in finishing pigs fed normal or low amounts of protein

Bracher-Jakob

Blum

1990

Anim. Sci.

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In earlier studies with pigs the P-adrenergic agonist Ro 16·8714 ((3-AG) enhanced the efficiency of nitrogen (N) retention. Therefore effects of Ro 16·8714 were studied on growth rate, body composition, N, fat and energy retention in pigs fed isoenergetically, but given different amounts of protein (112 or 138 g/kg diet) without (groups LP and NP) or with 60 mg Ro 16·8714 per kg diet (groups LPP and NPP) from 60 to 100 kg live weight. Weight gain (898, 927, 855 and 810 g/day in NP, NPp, LP and LPp) decreased, whereas food: gain ratio (2·94, 2·82, 3·04 and 3·24 kg/kg in NP, NPP, LP and LPP) was increased by low protein intake (P < 0·05) and both weight gain and food conversion were modified by the interaction (P × P) of protein intake and Ro 16·8714 (P < 0·05). Killing-out proportion (820, 830, 830 and 830 g/kg in groups NP, NPp, LP and LPP) was modified by protein intake and Ro 16·8714 (P < 0·05). Carcass growth rate (760, 814, 748 and 723 g/day in NP, NPP, LP and LPP) was modified by protein intake and by P × p (P < 0·05), while non-carcass growth rate (90, 77, 76 and 56 g/day in NP, NPP, LP and LPP) was changed by protein intake and by Ro 16·8714 (P < 0·05). Compared with NP, weights of kidneys (−0·025 kg), small intestine (−0·26 kg) and large intestine (−0·17 kg) were decreased by low protein feeding, and weights of heart, spleen and stomach decreased in response to Ro 16·8714 (-002, -0·02 and -0·06 kg; P < 0·05) while both low protein intake and Ro 16·8714 reduced liver weight (−0·12 and −0·23 kg, respectively; P < 0·05) and blood volume obtained at slaughter (-0·12 and -0·23 kg; P < 0·05). Carcass N (1813, 1970, 1786 and 1825 g in NP NPp, LP and LPP) increased in response to Ro 16-8714, but was reduced by low protein intake (P < 0·05), while noncarcass N (330, 309, 312 and 285 g in NP, NPp, LP and LPP) was decreased by both low protein intake and Ro 16-8714 (P < 0·01). Carcass and non-carcass fat (22·1, 19·9, 23·4 and 23·0 kg, respectively 1·51, 1·41, 1·59 and 1·68 kg in NP, NPp, LP and LPP) increased with low protein feeding (P < 0·05), but were not significantly influenced by Ro 16·8714. The efficiency of N retention (295, 363, 321 and 327 g/kg N retained: N intake in NP, NPp, LP and LPP) was enhanced by Ro 16·8714 (P > 0·05) whereas the efficiency of energy retention was not influenced by Ro 16·8714 and protein intake. In conclusion, an adequate intake of protein is necessary for optimum expression of many, but not all, effects of the P-adrenergic agonist Ro 16·8714.

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Section: General Aspectssupporting

confidence: 79%

Effects of a β-andrenergic agonist on growth performance, body composition and nutrient retention in finishing pigs fed normal or low amounts of protein

Bracher-Jakob

Blum

1990

Anim. Sci.

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“…On the other hand, Bikker (1994) observed a linear increase in protein deposition in lean tissue with an increase in feeding level (from 1.7 times maintenance requirement to ad libitum feeding level) in pigs of 45 to 85 kg BW. Wu¨nsche et al (1983) found no difference in N-content of the muscle of pigs after feeding different protein levels. Bikker (1994) suggested a linear-plateau response for whole body protein deposition to an increasing daily ileal digestible protein intake.…”

Section: Protein Accretion In Different Body Partsmentioning

confidence: 82%

Conceptual paper for modelling protein and lipid accretion in different body parts of growing and fattening pigs

Halas

Babinszky²,

Verstegen³

2003

Archives of Animal Nutrition

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The objective of this review is to outline those parts of modelling approaches in pig production which are not highly developed: these are the partitioning of protein and lipid accretion in different anatomical body parts. The authors introduce present models with a critical evaluation and draw some conclusions for further developments. Based on present knowledge this paper demonstrates the process of protein and fat accretion in different body compartments in pigs and influencing factors. A further aim is to assist in the conceptual development of a new pig model, which is more detailed, precise and accurate than currently available models. Exsisting models are generally deficient with regard to the translation of lipid and protein gain into lean and fatty tissue. Only assumed values for this translation have been used so far and the concepts underlying these values are not well understood. Therefore, it may be appropriate to develop a compartimental model to predict protein and fat deposition in growing and fattening pigs. With this new approach the model can supply sufficiently the changing consumer demands regarding to the possibility of meat quality prediction.

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“…Moreover, an increase in dietary Met reduced the amount of collagen, that is, Gly and Pro, in the empty body (Chung and Baker, 1992). In the current study, processing might have resulted in the deposition of different types of proteins, for example, less muscle protein in the carcass compared with protein in bone and adipose tissue with the latter being relatively low in Lys (Wünsche et al, 1983), which thereby changed the AA composition of body protein. Since there was a greater difference in SID Lys concentration between the SBM and pSBM diets than between the RSM and pRSM diets, our results could provide insight in the flexibility of pigs to deposit AA either in the organ fraction or in the carcass.…”

Section: Body Amino Acid Compositionmentioning

confidence: 99%

Protein quality of pig diets : processing effects on amino acid digestibility and post-absorptive utilization

Hulshof¹

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Einfluß einer abgestuften Proteinversorgung bei hohem Energieniveau auf die Mastleistung sowie den Ansatz und die Verwertung von Futterenergie, Protein und Aminosäuren durch weibliche Mastschweine

Cited by 6 publications

References 13 publications

Effects of a β-andrenergic agonist on growth performance, body composition and nutrient retention in finishing pigs fed normal or low amounts of protein

Effects of a β-andrenergic agonist on growth performance, body composition and nutrient retention in finishing pigs fed normal or low amounts of protein

Conceptual paper for modelling protein and lipid accretion in different body parts of growing and fattening pigs

Protein quality of pig diets : processing effects on amino acid digestibility and post-absorptive utilization

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