I have been attempting to breed my purebred Aussie to my brother's stud. (Also purebred.) These two spend allot of time together. The female has always dominated him, and he is a pretty "low on the totem pole" dog. Before she came into heat, she ABSOLUTELY hated his guts, more so than other intact females during their "off" time.

He had learned that she was the boss, and to be frightened of her. She bled for about a week, and then decided she loved him (of course). I left her with him for an entire day when she stopped bleeding and was starting to flag him. He clumsily tried to mount her and penetrate several times, but seemed to get tired and gave up. I didn't watch them for the rest of the day, but assumed he did not "get" her, as they did the deed the next day and she cried in pain when he was about to tie with her. (She is a maiden, and I assume if he had tied with her the day before, she wouldn't still be having pain when he attempted to do it that day. That is why I assume he never "got" her the first day.)

In any case, the second day she was not bleeding, I witnessed a mating. He got on her about five different times with allot of slow thrusting. Finally, he got on her the last time and he did allot of very fast, vigorous thrusting for probably a whole minute or two. She then squealed and turned on him, trying to bite at his "private parts". He has refused to mount her again since then, even though she has been flagging him somewhat the past two days. I assume he is afraid, and it probably hurt.

She was showing ALLOT of interest on the day they had the slip mating, climbing all over him and more or less demanding he do the deed. After that, she has shown him very minimal interest. She sniffs at his belly a little, and will flag him a tiny bit when he sniffs her rear end, but then walks away. He will do no more than sniff her, and then wanders off and lays down.

My question is, does her decreased interest mean she might have caught? It was the very first day she had started flagging, so she should have been fertile at least the next day or so as well. Also, I have heard of slip matings producing puppies, but what dictates HOW successful it will be? I know any time the males enters the female at all, it is considered a slip breeding. However, he didn't JUST enter her, he did ALLOT of very vigorous and fast thrusting, leading me to believe he ejaculated. How much semen generally is pushed back out of the female if they do no achieve a tie? I ran out to grab her when he was thrusting so that they could achieve a tie, but did not make it in time. She did not sit down, however, after he dismounted. Instead, she just kept trying to sniff his belly. She also has a little bit of a downhill build.

The day after the slip mating, we attempted to get a successful mating. He didn't seem to want to mount, but I convinced him to get on. He ejaculated, but I do not think it was actually IN her, though he might have been, as he fell off right when things started to exit his body (she leaned sideways abruptly.) I don't know if I can consider this another slip breeding as he was not in her long enough during ejaculation.

I am a newbie breeder! I only intended to breed the pair once, although they are both PB, and registered, so I am not out breeding mutts. My parents used to breed poodles, so they are trying to help with some information, but that was a very long time ago that they were breeders. (And they, unfortunately, were more or less VERY BYB even though their poodles were reg.).

[Yogi]

How old are these dogs? How long into her season before she was receptive to him? More information is needed.

The female is 3, and the male is a year and a half. He IS inexperienced, having only bred one female. That breeding, however was successful in one try, although they DID tie and the female was not a maiden (as my dog is.)

She was receptive to him on day 8 of her season. The slipped breeding was on the 9th day. It is now the 11th day, and neither have shown much interest in each other. She is still very much in heat, and will flag if I touch her tail, or if he sniffs at her. Yet, she does not pursue him, and wanders off after he sniffs her, rather than acting interested. He seems very put off of the whole thing after the slipped breeding.