Milk yield and milk chemical composition are largely affected by diet quality. Natural zeolite has been successfully used in livestock production as a feed supplement for some types and categories of domestic animals. This experiment was conducted over a period of 15 months involving Domestic Spotted dairy cattle. The test animals were assigned to three groups, each receiving different levels of supplemental zeolite. The control group comprised cows that received no zeolite supplement. Experimental groups I and II were fed compound feeds supplemented with 4% and 2% zeolite, respectively. The production traits studied included the following milk performance traits: whole lactation length, milk and fat yields over whole lactations, milk and fat yields over standard lactations. The results obtained suggest that zeolite supplementation affects some production traits, depending on the zeolite level present in livestock feed.

Reproductive traits and health status in dairy cows are largely affected by diet quality. Natural zeolite has been successfully used in livestock production as a feed supplement for some types and categories of domestic animals. This experiment was conducted over a period of 15 months involving Domestic Spotted dairy cows. The test animals were assigned to three groups, each receiving different levels of supplemental zeolite. The control group comprised cows that received no zeolite supplement. Experimental groups I and II were fed rations supplemented with 4% and 2% zeolite, respectively. The reproductive traits studied included gestation length, length of service period, length of calving interval, calf body weight at birth and calf body weight at 90 days of age. The results obtained suggest that zeolite supplementation affects some reproductive traits, depending on the zeolite level present in livestock feed.

nema

nema

Abstract:The aim of this research is to examine how zeolite as nutrition additive will impact on health characteristics of the diary cows and calves.Examined health characteristics are inner diseases, udder injuries and delivery.Examined inner diseases are pneumonia, indigestion multiplex, gastroenteritis, rachitis, osteomalatia, hypomagnesaemia, and omphalitis.Examined cow udder diseases are mastitis, udder edema, udder hyperemia, injuries and sores.As for the researches which lasted for 15 months, diary cows of domestic spotted breed. Experimental animals have been divided into three groups.Control group consisted of the cows which did not get zeolite while the first experimental group got nutrition with 3 % addition, and the second experimental group with 2 % zeolite addition within the meals.Achieved results imply to the fact that zeolite usage in diary cows' nutrition did not have any impact on the changes in mammas. There was no statistical dependence between control group and the groups which got tufozel either in 2% or 3% quantity.Based on the performed statistical analysis it can be concluded that changes on the mammas appeared because of the environment.As for the inner diseases appearances, in comparison to the control group, the group which got 2% of tufozel in diary cows feeding had seldom appearance of the inner diseases of the experimental animals vs. the group with 3% of tufozel. This is supported by stronger correlative dependence (0,65), determined for the group which got 2% of tufozel, in comparison to (0,59), which was determined for the experimental group, which got 3% of tufozel.