[Adipose tissue cellularity in the piglet as a function of the level of energy supply of the maternal diet and the number of young per litter].
Adipose tissue cellularity has been evaluated in piglets at birth and at weaning at 35 days in relation with the energy supply of the maternal diet during gestation (group B: 3 000 KcalED/day: group N; 6 500 KcalED/day; group H: 10 000 Kcal/day) and with the number of piglets per litter during suckling. This approximation was obtained by simultaneously measuring piglet carcass triglyceride content and the mean diameter of the lipid inclusions of the fat cell population. At birth there were no significant differences between N and H piglets. However, B piglets weighed less and had lower lipid stores than the piglets of the other two groups. This lower adiposity was due to the smaller number of fat cells (about--25%). A weaning piglet weight and adiposity depended on both the energy supply of the maternal diet during gestation and the number of piglets per litter. These differences were due to the number of fat cells; this number was usually greater when the maternal diet during gestation had a higher energy level and the number of piglets per litter was smaller. Between birth and weaning the number of fat cells increased by a factor related with the number of piglets per litter; this factor was 1.9 or 2.5, depending on whether the sow suckled 4 or 8 piglets.
D000273:Adipose Tissue / Q000166:cytology*; D000828:Animal Population Groups / Q000033:anatomy & histology*; D000818:Animals; D000833:Animals, Suckling / Q000033:anatomy & histology*; D001835:Body Weight; D002452:Cell Count; D002149:Energy Intake; D005260:Female; D008098:Litter Size; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D014280:Triglycerides / Q000378:metabolism; D014886:Weaning
D014280:Triglycerides
Cellularité des tissus adipeux chez le porcelet en fonction du niveaude l'apport énergétique du régime maternel et du nombre de jeunes par portée.