EFFECT OF SPIRULINA PLATENSIS ON THE PRODUCTIVITY AND DIGESTIBILITY OF NUTRIENTS IN FATTENING PIGS
G.Yordanova, R. Nedeva, E. Kistanova, А.Shimkus
Резюме: A scientific – economic experiment with fattening pigs from Danube white breed was carried out. Animals were divided into three groups of 11 pigs in each or 33 pigs totally.
The experiment was divided into two subperiods: 30 – 60 kg live weight and 60 – 110 kg live weight. Pigs from the control (I) and the experimental (II and III) groups were fed with one and the same compound feed to which was added Spirulina platensis (2 g/capita daily) for animals in the II group during the period 60-110 kg live weight, and for those in III group – Spirulina platensis (2 g/capita daily) during the whole experimental period. Physiological experience with 6 barrows divided into two groups of 3 animals in each with 62.000-62.33 kg live weight was carried out to establish the effect of the supplement Spirulina platensis on the digestibility of nutrients from the ration.
The following traits were controlled during the experimental period : feed intake, kg – daily; average daily gain, g individually; feed conversion per kg gain – by subperiods and for the whole period; health condition – daily. The aim of the present study was to determine the effect of the addition of the biologically active supplement Spirulina platensis in compound feed on the productive traits, health condition and digestibility of nutrients in fattening pigs. The phitobiotic Spirulina platensis can be successfully added at a dose of 2 g/capita daily in compound feed for fattening pigs from Danube white breed only during the finishing period (60 to 110 kg live weight). The addition of Spirulina platensis (3 g/capita daily) didn’t influence significantly on digestibility coefficients of individual nutrients. There is a tendency for higher digestibility coefficients of minerals, calcium and phosphorus with 4.91%, 3.07% and 5.79% respectively in animals fed with the addition.
The experiment was divided into two subperiods: 30 – 60 kg live weight and 60 – 110 kg live weight. Pigs from the control (I) and the experimental (II and III) groups were fed with one and the same compound feed to which was added Spirulina platensis (2 g/capita daily) for animals in the II group during the period 60-110 kg live weight, and for those in III group – Spirulina platensis (2 g/capita daily) during the whole experimental period. Physiological experience with 6 barrows divided into two groups of 3 animals in each with 62.000-62.33 kg live weight was carried out to establish the effect of the supplement Spirulina platensis on the digestibility of nutrients from the ration.
The following traits were controlled during the experimental period : feed intake, kg – daily; average daily gain, g individually; feed conversion per kg gain – by subperiods and for the whole period; health condition – daily. The aim of the present study was to determine the effect of the addition of the biologically active supplement Spirulina platensis in compound feed on the productive traits, health condition and digestibility of nutrients in fattening pigs. The phitobiotic Spirulina platensis can be successfully added at a dose of 2 g/capita daily in compound feed for fattening pigs from Danube white breed only during the finishing period (60 to 110 kg live weight). The addition of Spirulina platensis (3 g/capita daily) didn’t influence significantly on digestibility coefficients of individual nutrients. There is a tendency for higher digestibility coefficients of minerals, calcium and phosphorus with 4.91%, 3.07% and 5.79% respectively in animals fed with the addition.
Ключови думи: animals; biologically active supplements; Spirulina platensis
Дата на публикуване: 2017-03-16
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