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

Hennig, U.; Wünsche, J.; Meinl, M; Borgmann, Edda; Kreienbring, F.; Hd, Bock

doi:10.1080/17450398209425139

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…Zur Ermittlung weiterer Faktoren, die offensichtlich geringer als die eben genannten erkennbar sind, wurden eine Reihe von Untersuchungen durchgeführt, die sich mit Wachstumsverläufen beschäftigten (FITZHUGH, 1976;KUHN et al, 1987b;BLACK, 1995;SCHLEGEL und MATTHES, 2005). Dass diese sehr unterschiedlich sein können, ist bekannt (LEHMANN, 1980;HENNIG et al, 1981). Wachstumsfunktionen können in diesem Zusammenhang helfen, die Wachstumsprozesse mathematisch zu beschreiben (MATTHES et al, 1996).…”

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Vergleichende Untersuchungen von Wachstumsverläufen bei Schweinen – 1. Mitteilung: Wachstumsverläufe bei Gruppen- und Einzeltiervergleichen

et al. 2007

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Title of the paper: Comparing investigations of growth progresses of pigs. I. Growth progresses by comparisons of groups and individualsThe variability of delivered groups of fattened pigs is attempted to decrease always. For that it is essential to gather knowledges about the typical, separate development periods and points of inflection of growth patterns in order to work out indications for influencing the process engineering. Statements coming from experimental tests arn´t transferable without doubt. Therefore, it is of importance to realize also tests under production conditions. Under the tests, the first realized in farm I 1989, the second realized in the farms IIa/ IIb 2005, here ought be published the investigation of pig groups and individuals in 1989. For 276 hogs the ages and the weights were registred five times. For each animal were ascertained the function parameters (growth function of Lehmann) from their dataset. Consequently could be determined the "theoretical possible end weight" (x E ). According to these book values the datasets were sorted increasingly and divided into groups. Group 1 contains the animals with low x E and group 11 the with high. The comparison of pig groups leads to following statements: 1. A low x E corresponds with a high growth intensity (WI) and contrariwise. 2. The higher the WI the earlier the animals reach their maximum of daily live weight gains (t Zmax ) and the faster the animals cross this maximum. These statements were confronted with those of individuals. The selected animals 117 and 59 show identical x E . The higher WI express in a faster crossing of the t Zmax (confirmation of the second statement), but the faster reaching cannot be confirmed. At a compare of two other animals with same WI can be determined that they have different x E . With it the first statement can´t be confirmed in the complete consequence.

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Vergleichende Untersuchungen von Wachstumsverläufen bei Schweinen – 1. Mitteilung: Wachstumsverläufe bei Gruppen- und Einzeltiervergleichen

et al. 2007

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Effects of a β-adrenoceptor agonist on growth performance, nitrogen balance, body composition and retention of nitrogen, fat and energy of finishing pigs during restricted and ad libitum feeding

Bracher-Jakob

Stoll

Blum

1990

Livestock Production Science

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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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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 5 publications

References 22 publications

Vergleichende Untersuchungen von Wachstumsverläufen bei Schweinen – 1. Mitteilung: Wachstumsverläufe bei Gruppen- und Einzeltiervergleichen

Vergleichende Untersuchungen von Wachstumsverläufen bei Schweinen – 1. Mitteilung: Wachstumsverläufe bei Gruppen- und Einzeltiervergleichen

Effects of a β-adrenoceptor agonist on growth performance, nitrogen balance, body composition and retention of nitrogen, fat and energy of finishing pigs during restricted and ad libitum feeding

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

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