Metabolizable Energy (ME) and Metabolizable Protein (MP) Requirements for Angora Goats
Use this Calculator to calculate the daily energy and protein
requirements for Angora goats. Enter the data into the table below and
then click the Calculate Energy and Protein Requirements button. The results will be
displayed in the table at the bottom of the page. If an Angora doe is in the last 2 months of gestation, click on the Gestation Energy and Protein Requirement Calculator. The ME and MP requirements will then be added to the total requirement.
ExampleWe will use a mature 35-kg Angora without tissue gain and 10.0 g/day of clean mohair fiber growth consuming a diet containing 9 MJ/kg dry matter (DM) of ME.
To determine if consumption of a calculated amount of a specific diet necessary to meet ME or MP requirements is possible, the Angora Goat Feed Intake Calculator can be used. However, this Feed Intake Calculator was based on data with Angoras not lactating or in the last 56 days of pregnancy and, therefore, its use in such instances may not be appropriate.
Sources used in this calculation method are:
AFRC. 1998. The Nutrition of Goats. CAB International, New York, NY.
Luo, J., A. L. Goetsch, I. V. Nsahlai, T. Sahlu, C. L. Ferrell, F. N. Owens, M. L. Galyean, J. E. Moore, and Z. B. Johnson. 2004. Prediction of metabolizable energy and protein requirements for maintenance, gain and fiber growth of Angora goats. Small Ruminant Research 53:231-252.
Nsahlai, I. V., A. L. Goetsch, J. Luo, Z. B. Johnson, J. E. Moore, T. Sahlu, C. L. Ferrell, M. L. Galyean, and F. N. Owens. 2004. Metabolizable energy requirements of lactating goats. Small Ruminant Research 53:253-273.
Sahlu, T., A. L. Goetsch, J. Luo, I. V. Nsahlai, J. E. Moore, M. L. Galyean, F. N. Owens, C. L. Ferrell, and Z. B. Johnson. 2004. Nutrient requirements of goats: developed equations, other considerations and future research to improve them. Small Ruminant Research 53:191-219.