Naslov
Effect of sodium alginate, a feed additive, on the microclimate and pig health in fattening units

Autori
Vučemilo, Marija ; Tofant, Alenka ; Barač, Ivan ; Mamić, Stojko

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

Izvornik
Proceedings, CD room / - Lyon : Action Creation Multimedia, 1999

Skup
26th World Veterinary Congress WVA

Mjesto i datum
Lyon, Francuska, 23.10.1999. - 26.10.1999

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
feed aditive; sodium alginate;pig fattening;ammonia concentration

Sažetak
A number of biologic preparations added to feed, drinking water or litter are known to improve the housing microclimatic conditions, and consequentially the health and productivity of animals. In the present study, the effect of a feed additive obtained from brown seaweed ( Ascophillum nodosum ) , on the reduction of air pollution with gases, primarily ammonia, in a pig fattening unit was assessed. The preparation was added to feed in the form of granules, in a very small amount of 0.5 kg per 1000 kg feed. The action of the additive is based on ion exchange and the capacity to condense and gelatinize, thus influencing the biologic and physiologic characteristic of excrements. During the 3-month study, the microclimatic parameters and ammonia concentration in the air were simultaneously monitored in the experimental and control unit. At the same time, follow-up of the animal health was performed, with special reference to respiratory disorders, bronchopneumonia and pleuropnemonia in particular. The results obtained showed a significant decrease in the ammonia concentration from 10.5 „b 1.3 ppm in the control housing air to 3.5 „b 1.1 ppm in the experimental housing air, which resulted in a reduced death rate due to the aforementioned respiratory disorders by about 50%. In addition, the feed additive was found to improve the overall feed utilization and to reduce the fattening period. Accordingly, the use of sodium alginate as a feed additive appears to improve the housing microclimate and animal health, and to reduce the animal mortality rate. A number of biologic preparations added to feed, drinking water or litter are known to improve the housing microclimatic conditions, and consequentially the health and productivity of animals. In the present study, the effect of a feed additive obtained from brown seaweed ( Ascophillum nodosum ) , on the reduction of air pollution with gases, primarily ammonia, in a pig fattening unit was assessed. The preparation was added to feed in the form of granules, in a very small amount of 0.5 kg per 1000 kg feed. The action of the additive is based on ion exchange and the capacity to condense and gelatinize, thus influencing the biologic and physiologic characteristic of excrements. During the 3-month study, the microclimatic parameters and ammonia concentration in the air were simultaneously monitored in the experimental and control unit. At the same time, follow-up of the animal health was performed, with special reference to respiratory disorders, bronchopneumonia and pleuropnemonia in particular. The results obtained showed a significant decrease in the ammonia concentration from 10.5 „b 1.3 ppm in the control housing air to 3.5 „b 1.1 ppm in the experimental housing air, which resulted in a reduced death rate due to the aforementioned respiratory disorders by about 50%. In addition, the feed additive was found to improve the overall feed utilization and to reduce the fattening period. Accordingly, the use of sodium alginate as a feed additive appears to improve the housing microclimate and animal health, and to reduce the animal mortality rate.

Izvorni jezik
Engleski

Znanstvena područja
Šumarstvo

POVEZANOST RADA