Determination and comparison of the estimating equitions of some Iranian wheat cultivars with the equitions and information of NRC based on the production performance of broiler

Moravej, Hossein

doi:10.22059/jap.2017.61851

Document Type : Research Paper

Author

Hossein Moravej

Academic member

https://doi.org/10.22059/jap.2017.61851

Abstract

In order to determine the estimating equations of the apparent metabolisable energy corrected for the nitrogen (AMEn) in Iranian wheat cultivars and to compare these equations with the equation provided by NRC1994 as well as information of the NRC1994 table, two experiments were conducted. In the first experiment, the regression equations predicting AMEn for broiler chickens at age 10 and 24 days were evaluated by using twelve different Iranian wheat cultivars in two consecutive crop years and corresponding chemical composition and their AMEn. In order to verify the authenticity and accuracy the results of first experiment, a second experiment was conducted in a completely randomized design with four treatments and four replicates and using 256 ten days-old chicks Ross308. Wheat AME_nin the second experiment was calculated using four methods: 1- NRC1994 Table 2- Regression equation provided by NRC1994 3- Biological methods in these study 4- Regression equations of the first trial. In the first experiment, regression equations used for predicting AMEn of wheat at 10 and 24 days of age were as follows: AME_n=37.289 NFE and AME_n=41.859 NFE. In the second experiment, the highest average live weight at 42 days belongs to the birds in fourth treatment (2542g) and lowest weight in first treatment (2266g). Traits related to performance in biological methods and equations obtained in the first experiment were better than the treatments derived from the regression equation by NRC and NRC tables (P<0.05). Our results suggest that applying the regression equations presented in the current study to estimate the AMEn of wheat is more accurate in formulating diet.

Keywords

20.1001.1.20096776.1396.19.2.16.4

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Animal Production

Determination and comparison of the estimating equitions of some Iranian wheat cultivars with the equitions and information of NRC based on the production performance of broiler

References

References

Volume 19, Issue 2
August 2017
Pages 455-466

Determination and comparison of the estimating equitions of some Iranian wheat cultivars with the equitions and information of NRC based on the production performance of broiler

References

References

Volume 19, Issue 2August 2017Pages 455-466

Volume 19, Issue 2
August 2017
Pages 455-466