Characteristics and developmental changes of some plasma nutrition metabolites in neonatal lambs.
Twelve spontaneously delivered Hu sheep neonatal lambs with a birth weight of 1.5-4.5 kg were used to study the characteristics and developmental changes of plasma nutrition metabolites during postnatal period in 7 days of age. The results showed that plasma glucose (Glu) concentration rose significantly within 4 h after lambing and then maintained a fluctuent upward tendency until day 7 of age. Fructose (Fru) and lactic acid (LA) concentrations were highest at 1 h after birth, tended to drop thereafter, and remained relatively stable levels after day 3 of age. Free fatty acid (FFA) tended to increase within 12 h after birth, followed by keeping comparatively high levels although decreasing fluctuently. An obvious increase of total protein (TP) occurred within 8 h after birth and then remained a relatively high concentration until day 7 of age. a-Amino nitrogen (a-NH2N) tended to rise by 4 h and fell slightly thereafter, urea nitrogen (UN) had an elevated concentration from birth to 8 h and then dropped obviously. Both a-NH2N and UN appeared to be fairly stable during the first week of age in neonatal lambs.
Mao
X Z
XZ
Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, China.
Chen
L
L
Zhang
C M
CM
Zhu
Z K
ZK
Zhang
S Y
SY
Qin
W L
WL
D000577:Amides / Q000097:blood; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000831:Animals, Newborn; D001786:Blood Glucose / Q000032:analysis; D001798:Blood Proteins / Q000032:analysis; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D005632:Fructose / Q000097:blood; D007773:Lactates / Q000097:blood; D019344:Lactic Acid; D008297:Male; D012756:Sheep / Q000097:blood*; D013997:Time Factors; D014508:Urea / Q000097:blood
D000577:Amides; D001786:Blood Glucose; D001798:Blood Proteins; D005230:Fatty Acids, Nonesterified; D007773:Lactates; D005632:Fructose; D019344:Lactic Acid; D014508:Urea