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HEMP (CANNABIS SATIVA) AND THE POSSIBILITY OF ITS USE AS ANIMAL FEED
Pavel Suchy
; Veterinarski i farmaceutski univerzitet Brno, Republika Češka
Eva Strakova
; Veterinarski i farmaceutski univerzitet Brno, Republika Češka
Vladimir Večerek
; Veterinarski i farmaceutski univerzitet Brno, Republika Češka
Nora Mas
; Veterinarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Vlasta Šerman
; Veterinarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivan Herzig
; Veterinarski i farmaceutski univerzitet Brno, Republika Češka
Sažetak
Samples of the hemp plant (Cannabis sativa) were collected from May until July in one-week intervals and analysed for the following parameters: the weight of plants from the surface area of 1 m2 (g), plant height (cm), the dry matter content (%), stem diameter (mm), yield (t/ha) and the yield of dry matter (t/ha). Within 45 days, the weight increased by 3955 g/m2, the plant height increased from 55 to 175 cm, the dry matter content increased by 6.64 %, the stem diameter increased from 1 to 7 mm, the yield increased by 39.55 t/ha, and the yield of dry matter increased by 8.75 t/ha. Respective average samples collected in the same period of time were analysed for the following parameters: dry matter content, nitrogen substances, fat, ash, the levels of calcium, phosphorus, and magnesium in absolute dry matter in ash, and the spectrum of amino acids. The dry matter content varied in the range of 909.4 – 915.8 g/kg. The N-substances content increased in the first half of the
experimental period and decreased in the second half of the experimental period. The level of fat increased from 42.3 to 51.0 g/kg during the experimental period. Fibre content varied in the range of 92.5 -130.1 g/kg and ash levels ranged between 140.4 and 211.1 g/kg. The mean levels of elements were as follows: Ca - 36.04 g/kg, P - 3.53 g/kg, and Mg – 4.06 g/kg. The levels of individual amino acids showed the same trend as nitrogen substances (with some minor exceptions), i.e. they increased in the first half of the experimental period and decreased in the second half of the experimental period. Glutamic acid and aspartic acid were detected in the highest levels whereas the lowest level was found for threonine.
Hemp oil was analysed for fatty acids. Linoleic/linolelaidic acid was found at the highest level (57.60 g per 100 g of fat), followed by oleic/elaidic acid (17.02 g per 100 g of fat), α-linolenic acid (7.75 g per 100 g of fat), palmitic acid (5.57 g per 100 g of fat) and γ-linolenic acid (1,77 g per 100 g of fat). Other fatty acids were either
detected at a level below 1 g per 100 g of fat or were not detected at all.
Ključne riječi
animal nutrition; hemp; Cannabis sativa
Hrčak ID:
71362
URI
Datum izdavanja:
28.6.2011.
Posjeta: 1.989 *