Counting the number of columns with no NA in data frame

Question

I need to count the number of columns with no NA for the coulmns 2:25 in the data frame stats for each raw and store in store.results[i,6].

k= ncol(stats[!is.na(stats$Quinolincacid),])

for (i in 1:length(stats[,1])){
  
  #t.test for row i comparing columns 2-5 to 6-9
  z<-t.test(x=stats[i,2:25],y=stats[i,26:63])
 
  #store results for each iteration
  store.results[i,1]<-stats[i,1]
  store.results[i,6]<-count (stats[i,2:25])
  store.results[i,7]<-stats[i,1]
  store.results[i,2]<-z$estimate[1] #mean of control group
  store.results[i,3]<-z$estimate[2] #mean of treatment group
  store.results[i,4]<-z$estimate[1]-z$estimate[2] #difference of treatment from control
  store.results[i,5]<-z$p.value #p value    
}