Performance and Activity of Alkaline Phosphatase of Local Chickens Receiving Zinc Oxide and Phytase
Hardi Julendra (a*) , Hendra Herdian (a), Muhammad Ainsyar Harahap (a), Ade Erma Suryani (b), Lusty Istiqomah (b), Mohammad Faiz Karimy (b), Taufik Kurniawan (b), I Nyoman Guna Darma (c) and Arum Surya Pratiwi (4)

(a) Research Center for Animal Husbandry. National Research and Innovation Agency, Cibinong, West Java, Indonesia.
*julendra1969[at]gmail.com
(b) Research Center for Food Technology and Processing. National Research and Innovation Agency, Yogyakarta, Indonesia
(c) Study Program of Nutrition and Feed Sciences, Faculty of Animal Sciences, IPB University, Bogor, Indonesia
(d) Department of Biology Yogyakarta University, Yogyakarta, Indonesia

Abstract

A mixture of zinc oxide (ZnO) and phytase was believed to improve zinc digestion in enhancing local chicken performance. This study has conducted the effect of the dietary addition of local chicken (IPB D1) fed with ZnO and phytase and its effects on chicken performance and alkaline phosphatase (ALP) activity. A total of 120 birds 7 wk old (male and female) were allocated to one of four dietary treatments i.e. (1) basal diet- (2) basal diet with 80 ppm ZnO/kg diet- (3) basal diet with 80 ppm ZnO/kg diet, and 500 FTU phytase/kg diet- (4) basal diet with commercial ZnO, and commercial phytase. Dietary treatments were represented equally across 24 cages of 5 birds per cage with a 1.5 m2 animal space allowance. Grouped chickens by sex and three classes of body weight uniformity, i.e., 775 - 830 grams (L) group, 1020 - 1182 grams (M) group, and 1200 - 1400 grams (H) group. The split plot design was performed with the mixture of zinc oxide (ZnO) and phytase level set as the main plot and chicken sex type as a subplot was used to control the variations with four treatments and 6 replicates. The result showed that there was a significant difference (p<0.05) between males and females performance and ALP activity. The addition of IPB D1 diets with 80 ppm of ZnO/kg diet and 500 FTU phytase/kg diet resulted in higher (p<0.05) body weight and feed conversion ratio (FCR) than other treatments. However, the feed consumption and ALP activity were not significant. In conclusion, receiving added zinc oxide and phytase in diets was the right choice to increase the performance and ALP activity of Local Chicken IPB D1.

Keywords: alkaline phosphatase, chicken performance, phytase, zinc oxide

Topic: Animal Nutrition and Feed Technology