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  • Title: [Joint research on the precise determination of the energy and protein requirements of fattening pigs. 6. The effect of various energy and protein levels on the performance and feed expenditure of fattening pigs].
    Author: Gundel J, Szentmihalyi S.
    Journal: Arch Tierernahr; 1983; 33(7-8):598-614. PubMed ID: 6681248.
    Abstract:
    Scientific feeding experiments with hybrid pigs of the type Hungahib in the fattening period between 30 and 100 kg were carried out with one repetition as part of a joint international experiment. Feed, nutrient and energy expenditure were tested on 3 levels of energy supply (100 : 85 : 70%) and 3 levels of protein supply (18 : 16 : 14%) in the fattening period between 30 and 60 kg and 16 : 14 : 12% in the fattening period between 60 and 100 kg). In addition to this, parallel metabolism experiments were carried out to determine the digestibility and the N-balance of the feed mixtures used. The cost of feeding was also taken into consideration. The best results with regard to the fattening performance and the minimising of feed cost were achieved with the following ration type: (Table: see text). The fattening performance with this ration type was 712 g average daily live weight gain in the range between 30 and 60 kg live weight in the 1st fattening experiment and 601 g in the 2nd fattening experiment. A classification of the expenditure values has been attempted in the 10th contribution to this series of publications dealing with the total results of the joint international experiment.
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