EFFECTS OF FEED CALCIUM ON PERFORMANCE, CALCIUM  IN SERUM AND TIBIA OF BROILER CHICKEN

Trần Thanh Vân; Nguyễn Thu Quyên; Nguyễn Thị Bích Đào; Đinh Thị Huế; Phùng Thị Hằng

doi:10.34238/tnu-jst.7904

EFFECTS OF FEED CALCIUM ON PERFORMANCE, CALCIUM IN SERUM AND TIBIA OF BROILER CHICKEN

About this article

Received: 10/05/23 Revised: 05/01/24 Published: 03/02/24

Authors

1. Tran Thanh Van , Thai Nguyen University
2. Nguyen Thu Quyen, TNU - University of Agriculture and Forestry
3. Nguyen Thi Bich Dao, TNU - University of Agriculture and Forestry
4. Dinh Thi Hue, TNU - University of Agriculture and Forestry
5. Phung Thi Hang, Japfa comfeed Viet Nam

Abstract

This study is aimed to evaluate the effect of increasing the proportion of calcium (Ca) in the diet on performance, Ca content of serum and in tibia of broiler chickens. The experiment was carried out on Ross 308 broiler chickens, from 1 to 42 days of age. The experiment was assigned in a completely randomized one-factor (%Ca) design. The number of experimental chickens was 210 birds, assigned into 2 experimental groups, each group consists of 105 chicks and the experiment was conducted in triples with uniform males and females; Chickens were fed with 2 different levels of Ca at 3 feed phases, Plot TN1: phase 1 (1.19%), phase 2 (0.93%), phase 3 (0.97%). Plot TN2: phase 1 (1.224%), phase 2 (0.964%), phase 3 (1.004%). At 21, 42 days old, blood samples of experimental birds were collected from all groups for serum Ca testing. At the end of the 42-day experiment, 3 healthy males and 3 females broiler chicken were selected for each treatment with average weight of the group for slaughter to collect tibia to determine of Ca total content in bird’s tibia. The results showed that, when increasing the proportion of Ca in the diet to 2.86 - 3.66% compared to the recommended Ca level in the current high-yielding broiler feed (Plot TN 2), compared with (Plot TN1) there were statistical significant different in some straits such as: (1) Body weight of broiler decreased by 8.17%; (2) Feed conversion ratio (FCR) was higher than 2.4. %; (3) Increase the Ca content in tibia of chickens by 2.64%; (4) There were no statistically significant effect on survival rate, serum Ca content of broiler chicken.

Keywords

Ross 308 broiler chicken; Feed conversion ratio; Growth; Performance index; Serum calcium; Tibia calcium

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DOI: https://doi.org/10.34238/tnu-jst.7904

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