{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T12:04:06Z","timestamp":1753877046188,"version":"3.41.2"},"reference-count":36,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Endometrial-derived uterine histotroph is a critical component of nutrient supply to a growing conceptus throughout gestation; however, the effect of nutritional plane on histotroph nutrient composition remains unknown in multiparous cows. We hypothesized that differing planes of nutrition would alter histotroph and serum nutrient composition in beef cattle. Thus, we evaluated serum and histotroph amino acid and glucose composition, and serum non-esterified fatty acids (NEFA) and blood urea nitrogen (BUN) in cows individually fed to maintain body weight (BW; 0 kd\/d, n\u2005=\u20059; CON) compared with those losing moderate BW (\u22120.7 kg\/d, n\u2005=\u20059; NEG). After 49 d of differing nutritional planes, cows were subjected to the 7-d CoSynch\u2005+\u2005controlled internal drug release device estrus synchronization protocol and then slaughtered on day 62. Blood serum (days 0 and 62) and uterine histotroph [day 62; from uterine horns ipsilateral and contralateral to the corpus luteum (CL)] were collected and analyzed for concentrations of amino acids, glucose, and NEFA. Performance characteristics, body composition via ultrasound (days 0 and 62), and carcass characteristics were collected. Body condition score, change in BW, average daily gain, dry matter intake, and gain:feed were decreased (P\u2005\u2264\u20050.05) in NEG vs. CON cows. There were no differences in body composition or carcass characteristics, except an increase (P\u2005\u2264\u20050.05) in dressing percentage in NEG cows due to differences in gut fill, consistent with study design. Serum NEFA increased (P\u2005\u2264\u20050.05) in the NEG group, but there were no differences between NEG vs. CON in glucose or BUN. Serum histidine increased (P\u2005\u2264\u20050.05) and alanine, isoleucine, and tryptophan decreased (P\u2005\u2264\u20050.05) in NEG vs. CON cows. Compared with that of the uterine horn ipsilateral to the CL, histotroph from the uterine horn contralateral to the CL had increased (P\u2005\u2264\u20050.05) isoleucine, asparagine, and proline concentrations in NEG cows, and decreased (P\u2005\u2264\u20050.05) tryptophan as a proportion of essential and total amino acids. There were no differences in glucose concentrations of histotroph contralateral or ipsilateral to the CL. Cow nutritional plane does alter serum and histotroph amino acid composition, although the presence of an embryo may be necessary to fully elucidate these changes. Differences in serum and histotroph tryptophan should be given consideration in future studies due to its importance as an essential amino acid in protein synthesis and bioactive affects.<\/jats:p>","DOI":"10.1093\/jas\/skae199","type":"journal-article","created":{"date-parts":[[2024,7,17]],"date-time":"2024-07-17T21:15:17Z","timestamp":1721250917000},"source":"Crossref","is-referenced-by-count":1,"title":["Differing planes of nutrition alter serum and histotroph amino acid composition in nonpregnant, multiparous beef cows on day 3 of the estrous cycle"],"prefix":"10.1093","volume":"102","author":[{"given":"Rebecca M","family":"Swanson","sequence":"first","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tammi L","family":"Neville","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kacie L","family":"McCarthy","sequence":"additional","affiliation":[{"name":"Department of Animal Science, University of Nebraska-Lincoln , Lincoln, NE 68583 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cierrah J","family":"Kassetas","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pawel P","family":"Borowicz","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4579-2737","authenticated-orcid":false,"given":"Matthew S","family":"Crouse","sequence":"additional","affiliation":[{"name":"USDA, ARS, U.S. Meat Animal Research Center , Clay Center, NE 68933 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lawrence P","family":"Reynolds","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4556-4315","authenticated-orcid":false,"given":"Carl R","family":"Dahlen","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joel S","family":"Caton","sequence":"additional","affiliation":[{"name":"Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University , Fargo, ND 58108 , USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2024,7,19]]},"reference":[{"key":"2024081409074511400_CIT0001","volume-title":"Guide for care and use of agricultureal animals in research and teaching","author":"Ag Guide","year":"2020","edition":"4th ed"},{"key":"2024081409074511400_CIT0002","doi-asserted-by":"crossref","first-page":"R151","DOI":"10.1530\/REP-19-0348","article-title":"Preimplantation development in ungulates: a \u2018m\u00e9nage \u00e0 quatre\u2019scenario","volume":"159","author":"Artus","year":"2020","journal-title":"Reproduction"},{"key":"2024081409074511400_CIT0003","doi-asserted-by":"crossref","first-page":"896","DOI":"10.1093\/molehr\/gaq056","article-title":"Oviductal secretions: will they be key factors for the future ARTs","volume":"16","author":"Avil\u00e9s","year":"2010","journal-title":"Mol. 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