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Use of Spirulina Platensis in Place of Vitamin Mineral Premix on the Performance of Broiler

KMS Islam
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh

P Roy
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh

MR Debi
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh

M Kamruzzaman
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The experiment was conducted to compare the effects of different sources of Spirulina and vitamin-mineral premix as feed additive on the growth performance of broiler. Two hundred day-old broiler chicks (COBB-500) were divided into five groups such as T1-(Feed containing 0.30% Vitamin mineral premix+0.0% Spirulina), T2-(Feed containing 0.15% Vitamin mineral premix+0.15% Spirulina from China), T3-(Feed containing 0.0% Vitamin mineral premix+0.30% Spirulina from China), T4-(Feed containing 0.15% Vitamin mineral premix+0.15% Spirulina from Myanmar) and T5-(Feed containing 0.0% Vitamin mineral premix+0.30% Spirulina from Myanmar) having four replication in each group containing 10 birds/replication. The experiment was conducted for 28 days (Completely Randomized Design) with ad libitum feed and water. Live weight was numerically higher (P>0.05) in T4 in 4^th week of age. Lower feed intake observed in T3 and T5 which was mainly 50% replacement of vitamin-mineral premix by Spirulina. After end of the feeding trial feed conversion ratio (1.66) in control group was higher (P<0.05) than other groups (1.63, 1.64, 1.59, and 1.61 respectively in T2, T3, T4 and T5). Dressing percentage (63.12%), breast weight (21.22%) and thigh weight (8.54%) were higher (P<0.05) in T4 than all other groups. The concentration of total cholesterol in blood plasma (64.42mg/dl) and serum albumin (1.75g/dl) was lower (P<0.05) in T4. It could be concluded that Spirulina from Myanmar is better than China and 50% synthetic vitamin-mineral premix could be replaced by using Spirulina from Myanmar for better growth of broiler.

Keywords: Broiler performance; Vitamin-mineral premix; Blood profile; Feed conversion ratio; Spirulina

Location: Shahjalal Animal Nutrition Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Broiler

Objectives:

To study the replacement of Vitamin mineral premix by Spirulina (Spirulina platensis) in broiler diet from different sources for the growth performance, carcass characteristics, and blood profiles of broiler.

Methodology:

The experiment was conducted in the poultry rearing unit of Shahjalal Animal Nutrition Field Laboratory, Bangladesh Agricultural University, Mymensingh for a period of 28 days. Chicks, ingredients, and Spirulina- Day-old broiler chicks (COBB-500) were purchased from CP Bangladesh Ltd. All the feed ingredients were collected from the local markets in Mymensingh town and Spirulina were collected from Myanmar (JUNE Pharmaceuticals Limited) and China (Jiangxi Yuchang Industry Co., Ltd). Vitamin mineral premix was collected from Renata Limited. Experimental design and ration formulation-

A total number of 200 chicks was distributed into 5 groups having 4 replication floor cages containing 10 birds in each cage as mentioned below.

T₁- (Feed containing 0.30 % Vitamin mineral premix + 0.0% Spirulina)

T₂- (Feed containing 0.15% Vitamin mineral premix + 0.15% Spirulina from China)

T₃- (Feed containing 0.0% Vitamin mineral premix + 0.30% Spirulina from China)

T₄- (Feed containing 0.15% Vitamin mineral premix +0.15% Spirulina from Myanmar)

T₅- (Feed containing 0.0% Vitamin mineral premix +0.30% Spirulina from Myanmar); General management- Two hundred COBB-500 commercial day-old broiler chicks were reared in this experiment having an average weight of 45.33g/bird. 20 cages required for this trial each having floor space of 0.91m² (120cm×76cm). Fresh dried sawdust was used as litter material and maintained properly throughout the experiment. Every week litter was stirred to prevent the accumulation of ammonia gas and maggot formation. A 100-watt electric bulb was used for each cage to maintain proper lighting and brooding. The chicks were distributed 10 birds per cages where feeders and waterers were placed previously. Feeds were supplied an ad libitum basis. Proper biosecurity measures were also taken during the whole experimental period. The birds were vaccinated against Newcastle Disease (4^th and 20^th day) and Infectious Bursal Disease (11^th day) intraocular. The broilers were examined twice a day for clinical signs (slow movement, infrequent sitting, lack of appetite, significant changes of feathering, paralysis etc.) recorded as per symptoms. Record keeping and collection of data- Broilers were weighted in a group at the beginning of the trial and then every week at the age of day 0, 7, 14, 21 and 28. Feed offered were recorded when supplied in cages and refusal at the end of each week also recorded. Feed intake, feed conversion ratio, and feed conversion efficiency were calculated. The numbers of dead birds were counted during the whole experimental period. Blood from the healthy chicken was collected using a 10 ml falcon tube directly from the heart after slaughtering at day 28 of age from randomly selected birds of each replication. After the collection of blood samples, each tube was placed in a rack at room temperature. To avoid blood clots, EDTA was used and tubes were put in the centrifuge machine. The collected blood was centrifuged at 1500 rpm for 20 minutes to obtain plasma and transferred into a sterile 1.5ml eppendorf tube. The plasma was preserved in the deep freezer and the tubes were marked properly with a permanent marker for easy identification during blood analysis. Samples of feed ingredients (in duplicate) were analyzed to determine dry matter (DM), crude protein (CP), ether extract (EE), crude fibre (CF), and total ash (Ash) following the method described by AOAC (1990). Statistical analysis- All recorded and calculated variables were subjected to analysis of variance (ANOVA) in a Completely Randomized Design (CRD) by following a statistical package using SPSS statistical computer package program. Tukey Pairwise Comparisons were used to compare treatment means.

Source of Information: Bang. J. Anim. Sci. 2020. 49 (2): 151-158

Article Link (Online Journal): DOI: https://doi.org/10.3329/bjas.v49i2.53225

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the present result, it may conclude that replacement of synthetic vitamin-mineral premix by Spirulina could increase production performance of broiler as well as it could reduce the cholesterol concentration and increase protein synthesis as Spirulina is a good source of protein having amino acid in well proportion that we found by analyzing the concentration of albumin in blood plasma. But source and inclusion level of Spirulina have also an impact on broiler production that was observed in the present study. Spirulina from Myanmar is better than China and 50 % synthetic vitamin-mineral premix could be replaced by using 50% Spirulina which would be helpful for safe broiler production.

Knowledge Management: Journal