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Effect of some non-genetic factors on the productivity and profitability of Holstein Friesian dairy cows

BACKGROUND AND AIM: Milk yield (MY) is one of the main factors that affect the economic profitability of dairy farms. Thus, increasing the MY per animal and decreasing the feed cost can lead to economic gains, so the objective of this study was to evaluate the effect of dry period length (DPL), days...

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Vydáno v:Vet World
Hlavní autoři: Hamed, Amira M. Abd-El, Kamel, Eman R.
Médium: Artigo
Jazyk:Inglês
Vydáno: Veterinary World 2021
Témata:
On-line přístup:https://ncbi.nlm.nih.gov/pmc/articles/PMC7896893/
https://ncbi.nlm.nih.gov/pubmed/33642810
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.14202/vetworld.2021.242-249
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