Hi, we had a male and 2 females all nearly 3 years old. We bred them last year and had 3 good sized healthy litters 4, 6 and 5 all babies survived. This year we have started to breed them again but so far out out of 3 litters both mothers have had only 3 babies and none survived. We put the first loss down to cold weather as it was early March but same thing has happened twice more this week. Not sure if it related or a coincidence but the buck died on Sunday night. He was fine until this Saturday but then went off his food. We were going to take him to vets on Monday. Any advice on what could have caused change?