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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2007 , Volume 17 , Number 2; Page(s) 145 To 156.
 
Paper: 

ESTIMATION OF ECONOMIC WEIGHTS OF MILK PRODUCTION, FAT PERCENTAGE, PROTEIN PERCENTAGE AND HERD LIFE FOR MAXIMUM PROFIT INTEREST USING PROFIT EQUATION

 
 
Author(s):  MIR MAHDAVI CHABOK S.A.*, SHAD PARVAR A.A.A., GHORBANI A., ESKANDARINASAB M.P.
 
* GILAN AGRICULTURAL RESEARCH AND NATURAL RESOURCES, RASHT, IRAN
 
Abstract: 

Considering of milk pricing system in Iran, a deterministic model was used to predict economic weights of milk production, fat percentage, protein percentage and herd life for maximum profit, when product input were restricted and variable enterprises costs were used in animal unit. The sensitivity of these coefficients to a 20% change on prices of forage to concentrate, feed costs, non-feed costs, milk base price, milk free-market price, average milk production, fat percentage, protein percentage and herd life were examined, using data simulation and available data from three different dairy herds of Iran. On the basic condition, the economic weights of milk production, fat percentage, protein and herd life in maximum condition were (745, 581.5, 790.5), (460105, 492630, 161877), (424857, 905336, 488234) and (506.7, -16.2, 571.5) in three herds, respectively. Milk production, fat percentage, protein percentage and herd life had the highest sensitivity to change the average milk production, basic milk spice and herd life. Intake changing in forage to concentrate ration had the lowest effect on economic weights. Economic weights changes in contrast to changing on production factors in different systems had variable effects. Changing of production factors causes difference on economic weights of traits and their economic weights should be estimated for each production system.

 
Keyword(s): DAIRY COW, DETERMINISTIC MODEL, ECONOMIC WEIGHTS, HERD LIFE, MILK YIELD
 
 
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APA: Copy

MIR MAHDAVI CHABOK, S., & SHAD PARVAR, A., & GHORBANI, A., & ESKANDARINASAB, M. (2007). ESTIMATION OF ECONOMIC WEIGHTS OF MILK PRODUCTION, FAT PERCENTAGE, PROTEIN PERCENTAGE AND HERD LIFE FOR MAXIMUM PROFIT INTEREST USING PROFIT EQUATION. JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ), 17(2), 145-156. https://www.sid.ir/en/journal/ViewPaper.aspx?id=101508



Vancouver: Copy

MIR MAHDAVI CHABOK S.A., SHAD PARVAR A.A.A., GHORBANI A., ESKANDARINASAB M.P.. ESTIMATION OF ECONOMIC WEIGHTS OF MILK PRODUCTION, FAT PERCENTAGE, PROTEIN PERCENTAGE AND HERD LIFE FOR MAXIMUM PROFIT INTEREST USING PROFIT EQUATION. JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ). 2007 [cited 2021June20];17(2):145-156. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=101508



IEEE: Copy

MIR MAHDAVI CHABOK, S., SHAD PARVAR, A., GHORBANI, A., ESKANDARINASAB, M., 2007. ESTIMATION OF ECONOMIC WEIGHTS OF MILK PRODUCTION, FAT PERCENTAGE, PROTEIN PERCENTAGE AND HERD LIFE FOR MAXIMUM PROFIT INTEREST USING PROFIT EQUATION. JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ), [online] 17(2), pp.145-156. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=101508.



 
 
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