Well the size of the rat for starter are way too big for a male, while he is capable of eating them does not mean he should. Over feeding is a common issue with those animals.
If you want a BP that feed with consistency you want to feed smaller prey once a week, males even at 1500 grams don't need anything larger than than a 80 grams rat and of course when fed too much it sooner or later catches up and they will fast.
Also around 800/1000 grams BP will reach what we call the wall and tend to skip meals or fast.
Finally depending on where you live tempertures may already start to drop causing changes in BP'S behaviour.
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