|
Mineral feed additive to prevent chickens’ heat stress
|
|
| Author:
|
GORLOV I.F, SLOZHENKINA, KOMAROVA Z.B., GOLOVIN V.V, KROTOVA O.E, IVANOV S.M., VORONINA T.V., NOZHNIK D.N.
|
| Abstract:
|
The article presents a study of the “Potassium Chloride” feed additive used in the diets of broiler chickens and its effect on bioconversion of feed and metabolism in heat stress conditions. The authors have established a positive effect of the feed additive under study on digestibility and assimilation of feed nutrients, as well as balance of nitrogen, calcium and phosphorus in the bodies of chickens. The digestion coefficients of main feed nutrients significantly increased in Test I and II groups and exceeded the values in Control group, i.e. dry matter by 6.1 and 6.5%, crude protein by 13.8 and 15.1%, raw fat by 8.3 and 9.6%, crude fiber by 5.1 and 5.9%, and crude ash by 5.4 and 6.7%, respectively. In Test groups, where chickens got “Potassium Chloride” feed additive in their premix, the amount of assimilated nitrogen was greater than amount of taken nitrogen by 7.06 and 7.80%. Chickens in Test groups digested more calcium by 0.20 and 0.22 g and phosphorus by 0.10 and 0.12 g compared with Control group. Calcium digested was 46.28 in Test group I and 47.73% in Test group II; phosphorus digested was 41.35 and 43.27%, respectively. The “Potassium Chloride” feed additive has been proved to contribute to the activation of metabolism and inhibit adverse effects of thermal stress on broilers in the period of elevated ambient temperatures. In Test groups, the red blood cells exceeded the Control by 32.18 and 36.33% and hematocrit by 17.91 and 25.69%. The data obtained indicated pronounced thrombocytosis in Control group chickens. Prolonged exposure to high ambient temperatures and insufficient water intake are known to be reasons for an increase in blood platelets. In our experiment, the platelet content of chickens in Test groups was significantly lower than in Control group by 64.76 and 69.48%.
|
| Keyword:
|
broiler chickens, feed bioconversion, metabolic processes, potassium chloride.
|
| EOI:
|
-
|
| DOI:
|
https://doi.org/10.31838/ijpr/2020.12.03.030
|
| Download:
|
Request For Article
|
|
|