Investigation of Technical Efficiency and Economic Value of Some Production, Reproductive, Survival and Growth Traits of Holstein Cows in Pars Agriculture and Industry of Ardabil Province
| Autor: | nayer simanoor, reza seyedsharifi, nemat hedayat evrigh, jamal seif davati, alireza Abdpour, Zynab Rashtbari |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Research on Animal Production. 12:162-171 |
| ISSN: | 2676-461X 2251-8622 |
| DOI: | 10.52547/rap.12.33.162 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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