Abstract
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.
Highlights
Milk yield and milk quality of 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
Experimental group I (E-I) and Experimental group II (E-II) were fed rations i.e. compound feeds supplemented with 4% and 2% zeolite, respectively
Summary
Milk yield and milk quality of 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. Related studies in dairy cattle were conducted by Harvey et al (1991), Neustroyev et al (1995), Nešić (2000), Pešev et al (2005) and Ilić et al (2007). Production performance parameters are affected by livestock feeds that contain mycotoxins. Harvey et al (1991), Neustroyev et al (1995), Ilić et al (2005), Pešev et al (2005), Mohri et al (2008) justify the use of zeolite in livestock feeds fed to lactating cows
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