David O. Kleemann

TL;DR: Fetal growth was greater in all treatment groups than in the control group, and was greatest when treatments started on day 1, while pregnancy rate was not affected by progesterone treatment on days 3-6, but was reduced when treatment began on day1.

TL;DR: SOF containing oviductal fluid concentrations of amino acid facilitates the development of a high percentage of blastocysts and improves embryo morphology compared with that observed in medium containing HS, which significantly improves hatching rates compared with those obtained in SOF containing commercially available preparations of amino acids.

TL;DR: It is concluded that future research in commercial Merino flocks be focused on lamb mortality, particularly of twins, and on PFMO, the major source of embryo loss.

TL;DR: It is demonstrated that there are important relationships between maternal weight gain during the periconceptional period and feto‐placental growth during the first 56 days of pregnancy, and that periconCEPTional undernutrition has a differential effect on these relationships in singleton and twin pregnancies.

TL;DR: Exposure to maternal overnutrition in the periconceptional period alone results in an increased body fat mass in the offspring and that a short period of dietary restriction can reverse this effect.