Effect of inorganic and organic zinc supplementation on coccidial infections in goat kids
2011
Strnadova, P.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Patologicke Morfologie a Parazitologie | Svobodova, V.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Patologicke Morfologie a Parazitologie | Pavlata, L.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Klinika Chorob Prezvykavcu a Prasat | Misurova, L.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Klinika Chorob Prezvykavcu a Prasat | Dvorak, R.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Klinika Chorob Prezvykavcu a Prasat
The aim of this study was to identify the effect of zinc-enriched diet fed to goats and their kids on the number of Coccidia oocysts shed by kids, on clinical signs of coccidiosis, weight gains, and kids' blood plasma concentration of Zn. A total of 22 goat kids were divided into 4 groups of 5 or 6 animals. Goats and kids from the control group did not receive any additional Zn, the second group was supplemented with inorganic Zn (zinc oxide), the third group was given zinc lactate, and the fourth group received chelated Zn. Samples of kids' faeces were taken weekly from 3 to 9 weeks of their age (a total of 7 samples were taken). Samples of faeces were examined by a quantitative method to detect the number of oocysts. Kids were weighed weekly and their blood was taken in order to determine Zn concentrations in blood plasma. Animals from the group supplemented with zinc chelate and zinc lactate shed significantly lower number of oocysts (13.4% and 11.9%, respectively) than control and zinc oxide supplemented groups (25% and 49.7%, respectively). Shedding of oocysts was not accompanied by clinical symptoms of coccidiosis in any of the groups. Kids supplemented with zinc chelate showed significantly higher weight gains and Zn concentrations in blood plasma than control and inorganic zinc supplemented groups. Organic zinc is to be recommended to be used as a prophylaxis against coccidiosis in goat kids.
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