Cheyenne S Summers, Amanda S Reiter, Nicole M Tillquist, Nicholas M Barnello, Santhi Priya Voggu, Rachel E Carter, Mia Y Kawaida, Kristen E Govoni, Steven A Zinn, Sarah A Reed
{"title":"PSVI-17 孕期母体营养对第二顺位 F2 后代生长和器官重量的影响","authors":"Cheyenne S Summers, Amanda S Reiter, Nicole M Tillquist, Nicholas M Barnello, Santhi Priya Voggu, Rachel E Carter, Mia Y Kawaida, Kristen E Govoni, Steven A Zinn, Sarah A Reed","doi":"10.1093/jas/skae234.599","DOIUrl":null,"url":null,"abstract":"Maternal diet influences offspring growth, but the impact of granddam diet on subsequent generations is less explored. We hypothesized that granddam diet would influence second parity F2 offspring growth. The objective of this study was to determine the influence of granddam diet on second parity F2 offspring growth, morphometric measurements, and organ weights. To determine the impact of poor maternal nutrition of F0 dams on second parity offspring of F1 ewes, multiparous Dorset ewes (F0, n = 46) were fed 100% (control), 60% (restricted), or 140% (over) of NRC requirements from d 30 of gestation until parturition. The F1 ewes (n = 37) were bred at 16 to 19 mo of age to one of two related Dorset rams to generate the first parity F2 generation. The following breeding season, F1 ewes (n = 30) were bred to the same rams to generate the second parity F2 generation offspring (n = 58; F2-2), which were identified as CON F2-2 (n = 6 ewes, 12 rams), RES F2-2 (n = 6 ewes, 12 rams), or OVER F2-2 (n = 9 ewes, 13 rams) corresponding to the diets of the F0 granddams. F2-2 offspring body weights (BW) were recorded weekly from birth (d 0) to d 28, every 14 d until d 126, and every 28 d until d 266 of age. Hip height (HH), crown rump length (CRL), heart girth (HG), and body condition score (BCS) were measured at d 0 and d 120 of age. Rams were necropsied at d 284 ± 0.23. Data were analyzed with R Studio with P ≤ 0.05 considered significant and 0.05 < P ≤ 0.10 considered a tendency. Granddam diet and offspring sex were included in the model with animal ID as a random effect where appropriate. On d 210 and d 238, CON F2-2 tended to weigh 6.8% and 6.3% less, respectively, than OVER F2-2 (P = 0.07) but were not different than RES F2-2 at d 210 (P = 0.55) or d 238 (P = 0.15). We did not detect an effect of granddam diet on HH (P = 0.28), CRL (P = 0.31), or HG (P = 0.62) at birth. At d 120, ewes had 3.1% shorter CRL (P = 0.07) and weighed 9.4% less (P = 0.003) than rams. Immediately before necropsy, CON F2-2 rams tended to have 5.9% less BCS compared with RES F2-2 rams (P = 0.07) and 5.6% less BCS than OVER F2-2 rams (P = 0.10). At necropsy, granddam diet did not influence organ weight. Overfed and restricted granddam diet may increase BW and BCS of second parity, second generation offspring, which provides evidence that maternal diet has multigenerational effects on offspring.","PeriodicalId":14895,"journal":{"name":"Journal of animal science","volume":"32 1","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"PSVI-17 Effects of maternal nutrition during gestation on second parity F2 offspring growth and organ weights\",\"authors\":\"Cheyenne S Summers, Amanda S Reiter, Nicole M Tillquist, Nicholas M Barnello, Santhi Priya Voggu, Rachel E Carter, Mia Y Kawaida, Kristen E Govoni, Steven A Zinn, Sarah A Reed\",\"doi\":\"10.1093/jas/skae234.599\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Maternal diet influences offspring growth, but the impact of granddam diet on subsequent generations is less explored. We hypothesized that granddam diet would influence second parity F2 offspring growth. The objective of this study was to determine the influence of granddam diet on second parity F2 offspring growth, morphometric measurements, and organ weights. To determine the impact of poor maternal nutrition of F0 dams on second parity offspring of F1 ewes, multiparous Dorset ewes (F0, n = 46) were fed 100% (control), 60% (restricted), or 140% (over) of NRC requirements from d 30 of gestation until parturition. The F1 ewes (n = 37) were bred at 16 to 19 mo of age to one of two related Dorset rams to generate the first parity F2 generation. The following breeding season, F1 ewes (n = 30) were bred to the same rams to generate the second parity F2 generation offspring (n = 58; F2-2), which were identified as CON F2-2 (n = 6 ewes, 12 rams), RES F2-2 (n = 6 ewes, 12 rams), or OVER F2-2 (n = 9 ewes, 13 rams) corresponding to the diets of the F0 granddams. F2-2 offspring body weights (BW) were recorded weekly from birth (d 0) to d 28, every 14 d until d 126, and every 28 d until d 266 of age. Hip height (HH), crown rump length (CRL), heart girth (HG), and body condition score (BCS) were measured at d 0 and d 120 of age. Rams were necropsied at d 284 ± 0.23. Data were analyzed with R Studio with P ≤ 0.05 considered significant and 0.05 < P ≤ 0.10 considered a tendency. Granddam diet and offspring sex were included in the model with animal ID as a random effect where appropriate. On d 210 and d 238, CON F2-2 tended to weigh 6.8% and 6.3% less, respectively, than OVER F2-2 (P = 0.07) but were not different than RES F2-2 at d 210 (P = 0.55) or d 238 (P = 0.15). We did not detect an effect of granddam diet on HH (P = 0.28), CRL (P = 0.31), or HG (P = 0.62) at birth. At d 120, ewes had 3.1% shorter CRL (P = 0.07) and weighed 9.4% less (P = 0.003) than rams. Immediately before necropsy, CON F2-2 rams tended to have 5.9% less BCS compared with RES F2-2 rams (P = 0.07) and 5.6% less BCS than OVER F2-2 rams (P = 0.10). At necropsy, granddam diet did not influence organ weight. Overfed and restricted granddam diet may increase BW and BCS of second parity, second generation offspring, which provides evidence that maternal diet has multigenerational effects on offspring.\",\"PeriodicalId\":14895,\"journal\":{\"name\":\"Journal of animal science\",\"volume\":\"32 1\",\"pages\":\"\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of animal science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1093/jas/skae234.599\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of animal science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1093/jas/skae234.599","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
PSVI-17 Effects of maternal nutrition during gestation on second parity F2 offspring growth and organ weights
Maternal diet influences offspring growth, but the impact of granddam diet on subsequent generations is less explored. We hypothesized that granddam diet would influence second parity F2 offspring growth. The objective of this study was to determine the influence of granddam diet on second parity F2 offspring growth, morphometric measurements, and organ weights. To determine the impact of poor maternal nutrition of F0 dams on second parity offspring of F1 ewes, multiparous Dorset ewes (F0, n = 46) were fed 100% (control), 60% (restricted), or 140% (over) of NRC requirements from d 30 of gestation until parturition. The F1 ewes (n = 37) were bred at 16 to 19 mo of age to one of two related Dorset rams to generate the first parity F2 generation. The following breeding season, F1 ewes (n = 30) were bred to the same rams to generate the second parity F2 generation offspring (n = 58; F2-2), which were identified as CON F2-2 (n = 6 ewes, 12 rams), RES F2-2 (n = 6 ewes, 12 rams), or OVER F2-2 (n = 9 ewes, 13 rams) corresponding to the diets of the F0 granddams. F2-2 offspring body weights (BW) were recorded weekly from birth (d 0) to d 28, every 14 d until d 126, and every 28 d until d 266 of age. Hip height (HH), crown rump length (CRL), heart girth (HG), and body condition score (BCS) were measured at d 0 and d 120 of age. Rams were necropsied at d 284 ± 0.23. Data were analyzed with R Studio with P ≤ 0.05 considered significant and 0.05 < P ≤ 0.10 considered a tendency. Granddam diet and offspring sex were included in the model with animal ID as a random effect where appropriate. On d 210 and d 238, CON F2-2 tended to weigh 6.8% and 6.3% less, respectively, than OVER F2-2 (P = 0.07) but were not different than RES F2-2 at d 210 (P = 0.55) or d 238 (P = 0.15). We did not detect an effect of granddam diet on HH (P = 0.28), CRL (P = 0.31), or HG (P = 0.62) at birth. At d 120, ewes had 3.1% shorter CRL (P = 0.07) and weighed 9.4% less (P = 0.003) than rams. Immediately before necropsy, CON F2-2 rams tended to have 5.9% less BCS compared with RES F2-2 rams (P = 0.07) and 5.6% less BCS than OVER F2-2 rams (P = 0.10). At necropsy, granddam diet did not influence organ weight. Overfed and restricted granddam diet may increase BW and BCS of second parity, second generation offspring, which provides evidence that maternal diet has multigenerational effects on offspring.
期刊介绍:
The Journal of Animal Science (JAS) is the premier journal for animal science and serves as the leading source of new knowledge and perspective in this area. JAS publishes more than 500 fully reviewed research articles, invited reviews, technical notes, and letters to the editor each year.
Articles published in JAS encompass a broad range of research topics in animal production and fundamental aspects of genetics, nutrition, physiology, and preparation and utilization of animal products. Articles typically report research with beef cattle, companion animals, goats, horses, pigs, and sheep; however, studies involving other farm animals, aquatic and wildlife species, and laboratory animal species that address fundamental questions related to livestock and companion animal biology will be considered for publication.