Effects of removing vitamins and trace minerals from finisher diets on production parameters, tibia strength and ash content in chicken bones
Journal Title: Animal Science Papers and Reports - Year 2016, Vol 34, Issue 3
Abstract
Vitamins and trace minerals are necessary nutrients for normal functioning of the organism. The experiment was set up with 1400 chicken, divided into 7 groups, which were fed diets with no vitamin additives or vitamin + trace minerals from day 30 to 42. These additives were excluded 12, 8 and 4 days before the end of the fattening process. The following production parameters were monitored: body weight, weight gain, feed intake, feed conversion and mortality. On that basis the production index was calculated. Slaughtering parameters, ash content and tibia strength in bone were monitored. It was assumed that sufficient quantities of trace minerals and fat-soluble vitamins would be stored in the body. Great amounts of water soluble vitamins cannot be generally accumulated, but chickens will continue to obtain them from natural feedstuffs, after exclusion of premixes. The results show that exclusion of vitamin-mineral additives had no negative effects on final body weight, but feed conversion rate deteriorated after these additives were excluded for 8 and 12 days. As for slaughtering parameters (except for abdominal fat) and tibia strength, there were no negative effects. Removing only vitamins had more negative effects on bone ash contents than it was observed for the simultaneous removal of vitamins and minerals.
Authors and Affiliations
Milanka Drinic, Aleksandar Kralj, Bozo Vazic
Keywords
Related Articles
- EP ID EP177799
- DOI -
- Views 107
- Downloads 0
In vitro supplementation of lycopene to bovine spermatozoa: effects on motility, viability and superoxide production
This study was designed to assess the effects of lycopene (LYC) on motility, viability and superoxide production of bovine spermatozoa during short-term (0h, 2h, 6h) and long-term (12h, 24h) in vitro culture periods. Sem...
Effect of addition of yeast (Saccharomyces cerevisiae) and herb preparation to feed on selected physiological indicators, growth rate and pelt quality of growing arctic foxes
Yeast (Saccharomyces cerevisiae) and oil-and-water preparations (extracts) of plants are used in feeding farm animals, improving their health and productivity. It was attempted to use a plantorigin preparation (extract)...
Effect of the diet with common flax (Linum usitatissimum) and black cumin seeds (Nigella sativa) on quail performance and reproduction
Experimental flock, a total of 105 birds, was divided into 5 groups (with three replications), 15 females and 6 males in each. Group I (control) was fed a complete feed mix of standard composition. Feed mix for groups II...
The effect of feeding linseed cake on milk yield and milk fatty acid profile in goats
The study aimed at determining the effect of supplementation the diet with linseed on milk yield and milk fatty acids profile in the middle stage of lactation of goats. Used were 16 Polish Fawn Improved goats divided int...
Effect of injected position of cultured cumulus cells as donor cells on reconstructed in vitro matured porcine oocytes
The effect was studied of injected position of cultured cumulus cells as donor cells for nuclear transfer on the process of in vitro matured reconstructed porcine oocytes. The cumulus-oocyte complexes (COCs) obtained fro...