دورية أكاديمية
Dam parity affects fetal growth, placental size, and neonatal metabolism in spring-born beef calves.
| العنوان: | Dam parity affects fetal growth, placental size, and neonatal metabolism in spring-born beef calves. |
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| المؤلفون: | Duncan NB; Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA., Stoecklein KS; Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA., Foote AP; Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA., Meyer AM; Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA. |
| المصدر: | Journal of animal science [J Anim Sci] 2023 Jan 03; Vol. 101. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Society of Animal Science Country of Publication: United States NLM ID: 8003002 Publication Model: Print Cited Medium: Internet ISSN: 1525-3163 (Electronic) Linking ISSN: 00218812 NLM ISO Abbreviation: J Anim Sci Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Champaign, IL : American Society of Animal Science |
| مواضيع طبية MeSH: | Fatty Acids, Nonesterified* , Placenta*, Pregnancy ; Cattle ; Animals ; Female ; Parity ; Fetal Development ; Triglycerides ; Glucose |
| مستخلص: | To determine effects of dam parity on perinatal nutrient availability in beef cattle, data and samples were collected from 18 primiparous and 35 multiparous spring-calving Sim-Angus dams and their calves. Time to stand was recorded and neonatal vigor assessed. Jugular blood was collected from a subset of calves at 0 (post-standing and pre-suckling) 6, 12, 24, 48, and 72 h of age, and blood chemistry panels were completed. Expelled placentas were dissected, dried, and weighed. Prepartum maternal circulating glucose, non-esterified fatty acids (NEFA), triglycerides, and urea N were analyzed. All statistical models included the fixed effect of dam parity, and calf sex (when P ≤ 0.25) was included for calf and placental variables. Effects of sampling hour, and parity × hour were included for calf metabolites over time using repeated measures. Multiparous dams had greater body weight prepartum (P < 0.001) but similar (P = 0.25) body condition score. Maternal circulating urea N and triglycerides were greater (P ≤ 0.05) in multiparous dams pre-calving. Calves born to primiparous dams weighed 10% less (P ≤ 0.04) at birth with smaller (P ≤ 0.01) heart and abdominal girths. Cotyledonary, intercotyledonary, and total placental masses were less (P ≤ 0.05) for primiparous dams. Dam parity did not affect (P ≥ 0.58) calf time to stand, vigor score at 10 min, or rectal temperature. Serum glucose was greater (P = 0.03) at 0 h but less (P ≤ 0.04) at all other hours in calves from primiparous dams. Calves from primiparous dams had greater (P ≤ 0.02) serum NEFA at 6, 12, and 24 h although plasma triglycerides were greater (P < 0.001) at 6 h. Calves from primiparous dams had greater (P ≤ 0.04) serum urea N at 12 h and creatinine at 12 and 24 h. Plasma insulin was greater (P ≤ 0.04) in calves from multiparous dams at 12, 48, and 72 h, but parity did not affect (P ≥ 0.18) serum total protein or plasma cortisol. Serum aspartate aminotransferase was greater (P ≤ 0.04) at 6 and 24 h, creatine kinase was greater at 24 h, and gamma-glutamyl transpeptidase was less (P ≤ 0.04) at 6, 12, and 24 h, for calves from primiparous dams. Calves born to primiparous dams had greater (P ≤ 0.02) total bilirubin and direct bilirubin at 12 and 24 h. Data indicate that calves born to first-parity heifers had decreased perinatal nutrient availability, resulting in reduced fetal and placental growth, as well as greater energy reserve mobilization and metabolic indicators of stress as neonates. (© The Author(s) 2022. Published by Oxford University Press on behalf of the American Society of Animal Science. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.) |
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| معلومات مُعتمدة: | 1026253 USDA Hatch Multistate Research Fund |
| فهرسة مساهمة: | Keywords: developmental programming; gestation; metabolism; neonate; placenta; pregnancy Local Abstract: [plain-language-summary] Approximately two-thirds of beef calf deaths prior to weaning occur within the first 3 wk after birth. The goal to have heifers produce their first calf by 2 yr of age likely contributes to factors that limit nutrients available for fetuses and calves immediately after birth. However, little is known about differences in heifers (first parity) and cows (later parities) regarding factors affecting calf resilience, such as fetal growth and calf metabolism shortly after birth. Our data show that calves born to first-parity heifers had altered nutrient availability, demonstrated through smaller placentas, lower birth weights, and altered metabolites in early life. Although calves had similar vigor and ability to maintain body temperature, calves born to first-parity heifers had to mobilize more energy and had lower insulin during the first 3 d post-birth. Calves born to first-parity heifers had greater indicators of stress during the first 72 h of life not associated with calving difficulties. Overall, these effects may have increased morbidity and mortality of calves born to first-parity heifers if they were in a less intensively-managed system. Better understanding of challenges faced by calves born to first-parity dams provides opportunities for their improved management. |
| المشرفين على المادة: | 0 (Fatty Acids, Nonesterified) 0 (Triglycerides) IY9XDZ35W2 (Glucose) |
| تواريخ الأحداث: | Date Created: 20221208 Date Completed: 20230117 Latest Revision: 20231212 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC9883719 |
| DOI: | 10.1093/jas/skac399 |
| PMID: | 36478071 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1525-3163 |
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| DOI: | 10.1093/jas/skac399 |