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Effect of Incorporating Rice Bran or Parboiled Rice Polish with or Without Exogenous Phytase in the Diet on Growth of Jinding Ducklings

Nebash Chandra Pal
Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Syed Mohammad Bulbul
Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Zannatul Mawa
Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Muslah Uddin Ahammad
Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

A total of 48 straight-run day old ducklings (DOD) of Jinding were fed adlibitum on four iso-nitrogenous and iso-caloric diets (3000 Kcal ME/kg and 22% CP) having 3 replicates each. The diets were formulated using 20% rice bran (RB) or parboiled rice polish (PRP) with or without exogenous phytase (10g/kg). Ducklings were fed up to 28 days of age to observe the effect of RB and PRP based diet on the growth performance. Feeding of PRP based diet with enzyme resulted in increased live weight gain and feed efficiency. There was no difference in feed intake on both diets (p>0.05). However, the formulating cost of PRP based diet was higher than that of RB based diet. Addition of enzyme promoted growth and feed efficiency but did not affect feed intake significantly during the experimental period and increased feed cost. Therefore, it appeared that the biological performance of PRP based diet with or without enzyme was better than that of RB based diet. However, the feed cost was less in RB based diet with or without phytase. Therefore, to formulate low cost diet, RB seemed to be superior over PRP, but for better growth performance PRP can be used in the diet of ducklings. In conclusion, the findings demonstrated that the PRP based diets with or without phytase was superior to RB based diets with or without phytase in terms of growth performance, but RB based diet was superior in terms of feed cost. Therefore, it appeared that increased growth performance cannot be a basis of using RB and PRP. Rather, cost effectiveness of feeding ducklings on RB and PRP based diet must be taken into account.

Keywords: Rice bran, Parboiled rice polish, Phytase, Growth, Jinding duckling

Location: Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Duck, Feed

Objectives:

To examining the effect of PRP and RB based diet with or without phytase on the growth performance of ducklings.

Methodology:

The experiment was carried out in a shed type, well ventilated open-sided house for a period of 28 days. Allocated floor space was 900 cm² per duckling. The whole wire meshed floor area was divided into a total of 12 uniform pens made of bamboo and wire net. A total of 48 as hatched individually wing banded Jinding DOD were randomly allocated to four different dietary treatment groups, which was replicated three times each. The diets were prepared replacing grain(s) by RB or PRP at a level of 20% with or without enzyme. Ducklings were fed ad libitum throughout the experimental period on 4 different isonitrogenous and iso-caloric diets namely: D₁ (containing 20% RB without phytase), D₂ (containing 20% RB + 1% phytase), D₃ (containing 20% PRP without phytase) and D₄ (containing 20% PRP + 1% phytase). The nutrient levels of the four diets were adjusted in accordance with the feeding standard recommended by NRC (1994). The test diets were formulated using locally available feed ingredients including RB, PRP, maize, soybean meal, protein concentrate (Jasoprot), L-lysine, DL-methionine, dicalcium phosphate, vitamin-mineral-amino acid premix, common salt and phytaes enzyme (RenaPhytase-400; BASF, DSM, Renata Animal Health, Bangladesh). Feeds were supplied in mash form. One trough feeder and one round drinker were provided to each pen. During the whole experimental period, all ducklings were exposed to a continuous lighting of 16 hours including day light and artificial light. Artificial lighting was reduced by 1 hour/week. Individual records were kept on initial and weekly live weight, weekly feed intake, feed conversion ratio (FCR) and survivability. All data either measured or calculated regarding growth, feed intake, FCR and feed cost were analysed by one-way ANOVA with the generalized linear model (GLM) using IBM SPSS Statistics version 19 (SPSS Inc., an IBM Company, Chicago, IL). In some cases where analyses revealed a significant treatment effect, the differences between mean values were evaluated using LSD (Least Significant Difference). A value of P< 0.05 was considered statistically significant, unless stated otherwise.

Source of Information: Res. Agric. Livest. Fish. Vol. 2, No. 3, December 2015: 445-451; ISSN : P-2409-0603, E-2409-9325

Article Link (Online Journal): http://www.banglajol.info/index.php/RALF/article/download/26167/17562

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on the findings of the current study, it may be concluded that the inclusion of costlier PRP in the diet of ducklings resulted in higher growth rate and better feed efficiency as compared to that of cheaper RB. Supplementation of enzyme accelerated feed utilization as indicated by the increased performances of ducklings on diet with enzymes. Therefore, it is suggested to use phytase-fortified PRP based diet for feeding ducks. Augmentation of production performance seems to be a better option for the duck producers than the reduction of feed cost.

Knowledge Management: Journal