No, I'm afraid he did not plan on killing his son for that at all.
It was for an unrelated matter to do with his son eating honey, not due to the soldiers eating blood.
(1 Samuel 14:43
Then Saul said to Jonathan, “Tell me what you have done.”
So Jonathan told him, “I tasted a little honey with the end of my staff. And now I must die!”)
Here is the account in question:
1 Samuel 14:31
That day, after the Israelites had struck down the Philistines from Mikmash to Aijalon, they were exhausted.
32 They pounced on the plunder and, taking sheep, cattle and calves, they butchered them on the ground and ate them, together with the blood.
“You have broken faith,” he said. “Roll a large stone over here at once.”
So everyone brought his ox that night and slaughtered it there.
....
Interesting point regarding these verses here:
[talking about the comments from the Watchtower's blood brochure]
"On the other hand, what this Bible story does teach us is quite interesting. Note what happens to these hungry soldiers who in an “emergency” chose to “sustain their lives” by “eating along with the blood?”...
"That is the entire consequence of their actions. They received a verbal reprimand."