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TOLERANCE OF GROWING AND FATTENING PIGS TO SWEET WHITE LUPIN ALKALOIDS
Darko Grbeša
; Department of Animal Nutrition, Department of Animal Production, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Zdravko Černy
; Department of Animal Nutrition, Department of Animal Production, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Jasna Posavac
; Department of Animal Nutrition, Department of Animal Production, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Željka Laškarin
; Department of Animal Nutrition, Department of Animal Production, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Sažetak
The objective of this research was to examine growing and fattening pigs tolerance to increased levels of total alkaloids from the sweet white lupin (Lupinus albus L.) cv. Bosna. The experiment was carried out on 132 pigs divided into two repetitions with 33 animals per treatment. Pigs were fed compounded feed in which 0, 33, 66 and 100% of soy-bean meal was substituted by raw lupin seed (0,075 % of alkaloids). Dier for growing pigs from 20-60 kg contained 0.0, 34.5, 69.0 and 102.0 mg/kg of total alkaloids, while the diet for growing pigs from 60-100 kg contained 0.0, 31.5, 61.5 and 93 mg/kg of total alkaloids. Growing pigs achieved lower (P< 0.05) final live weight and daily gain, and feed intake had decreased. During 77-day period, the influence of alkaloid level was greater on daily gain (r = -0.802) than on feed intake (r = -0.499). In 52-day fattening period, pigs were sensitable (P< 0.05) to higher (61.5 and 93 mg/kg) alkaloid levels. Also, negative correlation of increased alkaloid levels to daily gain (r = -0.715), as well as to feed intake (r = -0.421) was established. Cold carcass weight was the lowest (P< 0.05) in pigs fed diets averaging 65.3 and 97.5 mg/kg of total alkaloids during the experiment, while dressing proportion and back fat thickness were lowest in groups (P< 0.05) with the highest alkaloids level. Growing pigs from 20 to 60 kg live weight responded to low alkaloid level (34.5), but fattening pigs from 60 to 100 kg tolerated up to 69 mg/kg of total alkaloids from sweet lupin cv. Bosna.
Ključne riječi
Hrčak ID:
164931
URI
Datum izdavanja:
23.12.1994.
Posjeta: 850 *