Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Mar;32(3):405-412.
doi: 10.5713/ajas.17.0891. Epub 2018 May 24.

Determination and prediction of the digestible and metabolizable energy contents of corn germ meal in growing pigs

Meng Shi  1 , Zhaoyu Liu  1 , Hongliang Wang  1 , Chuanxin Shi  2 , Ling Liu  1 , Junjun Wang  1 , Defa Li  1 , Shuai Zhang  1
Affiliations

Determination and prediction of the digestible and metabolizable energy contents of corn germ meal in growing pigs

Meng Shi et al. Asian-Australas J Anim Sci. 2019 Mar.

Abstract

Objective: This experiment was conducted to determine the chemical composition, digestible energy (DE) and metabolizable energy (ME) contents of corn germ meals (CGM) and to develop equations to predict the corresponding energy contents based on the chemical characteristics of individual CGM.

Methods: Sixty-six barrows (initial body weight = 51.3±4.6 kg) were allotted to 11 diets including a basal diet and 10 CGM test diets in a completely randomized design. In the test diets, CGM was included in replacement of 30% of the energy-providing ingredients in the basal diet, resulting in a final inclusion rate of 29.1%. Each diet was fed to 6 barrows housed in individual metabolism crates for a 7-d acclimation period followed by a 5-d total but separate collection of feces and urine.

Results: Considerable variation was observed in acid-hydrolyzed ether extract, ether extract, ash, calcium (Ca) and total phosphorus contents among the CGM samples. On dry matter (DM) basis, the DE and ME contents of the CGM ranged from 10.22 to 15.83 MJ/kg and from 9.94 to 15.43 MJ/kg, respectively. The acid detergent fiber (ADF) contents were negatively correlated with the DE and ME contents of CGM samples. The best-fit prediction equations for the DE and ME values (MJ/kg DM) of the 10 CGM were: DE = 26.85-0.28 insoluble dietary fiber (%)-17.79 Ca (%); ME = 21.05-0.43 ADF (%)-11.40 Ca (%).

Conclusion: The chemical compositions of CGM vary depending on sources, particularly in ether extract and Ca. The DE and ME values of CGM can be predicted based on their chemical composition in growing pigs.

Keywords: Corn Germ Meal; Digestible Energy; Metabolizable Energy; Pig; Prediction Equation.

PubMed Disclaimer

Conflict of interest statement

CONFLICT OF INTEREST

We certify that there is no conflict of interest with any financial organization regarding the material discussed in the manuscript.

References

    1. Stock RA, Lewis JM, Klopfenstein TJ, Milton CT. Proceedings of the American Society of Animal Science, 1999. Lincoln, NE, USA: University of Nebraska. Faculty Papers and Publications in Animal Science; Review of new information on the use of wet and dry milling feed by-products in feedlot diets; p. 555.
    1. Li MH, Robinson EH, Oberle DF, Lucas PM, Bosworth BG. Use of corn meal in diets for pond-raised channel catfish, ictalurus punctatus. J World Aquac Soc. 2013;44:282–7.
    1. Herold D, Klemesrud M, Klopfenstein TJ, Milton T, Stock R. Nebraska Beef Cattle Reports. 1998. Solvent-extracted germ meal, corn bran and steep liquor blends for finishing steers; p. 337.
    1. da Silva EC, Ferreira MDA, Véras ASC, et al. Replacement of corn meal by corn germ meal in lamb diets. Pesq Agropec Bras. 2013;48:442–9.
    1. Soares LLP, da Silva CA, Pinheiro JW, et al. Defatted corn germ meal to swine in the growing and finishing phases. R Bras Zootec. 2004;33:1768–76.

LinkOut - more resources