Naslov
Use of ByopolymR Granulate as a Feed Additive in Intensive Fattening Piggeries

Autori
Tofant, Alenka ; Vučemilo, Marija ; Barač, Ivan ; Mamić, S.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Environmental protection and animal welfare / - Postojna, 1999

Skup
11 th "in between Symposium of the International Society for Animal Hygiene

Mjesto i datum
Postojna, Slovenija, 22.04.1999. - 25.04.1999

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pig; ammonia; feed additive; Biopolym

Sažetak
Investigations were carried out in a high-capacity pig feedlot. Beside other microclinate parameters and housing system, the concentration of ammonia in the stall air has a great impact on animal welfare, health and performance. Odor problems resulting from the concentration of ammonia and other gases released from animal houses also exert a negative effect on the immediate surroundings. The effect of a feed additive, BiopolymR granulate, a sodium alginate obtained from marine alga Ascophyllum nodosum, was observed in eddition to other measures taken to solve the problems of ammonia emission from pig excrements. The Biopolym granulate feed additive was added to the diet of the treated groups of pigs, 0.5 kg granulate per 1 000 kg of feed mixture, during the 3-month study period. In order to determine the additive effect, the ammonia concentration in the air and microclimate parameters (to confirm similar housing conditions in the control and experimental group) were measured weekly. Results of the study proved the ammonia emission reducing effect of the additive in the experimental houses. The addition of sodium alginate led to an ammonia release reduced by about 80%. Another effect was lower mortality observed in the experimental group, which could be attributed to the feed additive, as it was a variable that might influence the animal health and mortality.

Izvorni jezik
Engleski

Znanstvena područja
Šumarstvo

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