scholarly journals Presynchronization using a modified Ovsynch protocol or a single gonadotropin-releasing hormone injection 7 d before an Ovsynch-56 protocol for submission of lactating dairy cows to first timed artificial insemination

2014 ◽  
Vol 97 (10) ◽  
pp. 6305-6315 ◽  
Author(s):  
P.D. Carvalho ◽  
J.N. Guenther ◽  
M.J. Fuenzalida ◽  
M.C. Amundson ◽  
M.C. Wiltbank ◽  
...  
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