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| 1 | Maternal supply of methionine during late-pregnancy enhances rate of Holstein calf development in utero and postnatal growth to a greater extent than colostrum source显示文摘Background: Pregnancy and early life are critical periods of plasticity during which the fetus and neonate may be influenced by environmental factors such as nutrition.Maternal methionine(Met) supply in non-ruminants during pregnancy can affect offspring development and growth.Thus,the objective of this study was to investigate if increasing Met supply during late-pregnancy affects developmental parameters of the calf at birth and if either maternal Met or colostrum from Met-fed cows alters calf growth.Calves born to Holstein cows individually-fed a basal control [CON; 1.47 Mcal/kg dry matter(DM) and 15.3% crude protein] diet with no added Met or CON plus ethylcellulose rumen-protected Met(MET; Mepron? at 0.09% of diet DM; Evonik Nutrition & Care GmbH,Germany)during the last 28 ± 2 d of pregnancy were used.A total of 39 calves were in CON(n = 22 bulls,17 heifers) and 42 in MET(n = 20 bulls,22 heifers).At birth,calves were randomly allocated considering dam treatment and colostrum as fol ows: 1) calves from CON cows and colostrum from CON cows(n = 21); 2) calves from CON cows and colostrum from MET cows(n = 18); 3) calves from MET cows and colostrum from MET cows(n = 22); and 4) calves from MET cows and colostrum from CON cows(n = 20).Al calves were housed,managed,and fed individual y during the first 9 wk of life.Results: Despite greater daily DM intake pre-partum in cows fed MET(15.7 vs.14.4 ± 0.12 kg/d,P < 0.05),colostrum quality and quantity were not affected by maternal diet.At birth,MET calves had greater(P ≤ 0.05) body weight(BW,44.1 vs.42.1 ± 0.70 kg),hip height(HH,81.3 vs.79.6 ± 0.53 cm) and wither height(WH,77.8 vs.75.9 ± 0.47 cm).In contrast,concentrations of His,Lys,and Asn in plasma were lower(P ≤ 0.05) in MET calves.Regardless of colostrum source,the greater BW,HH,and WH in MET calves at birth persisted through 9 wk of age resulting in average responses of + 3.1 kg BW,+ 1.9 cm HH,and + 1.8 cm WH compared with CON.Average daily gain during the 9 wk was(P < 0.05) 0.72 ± 0.02 kg/d in MET compared with 0.67 ± 0.02 kg/d in CON calves.Respiratory scores were normal and did not differ(P > 0.05) due to maternal Met supply or colostrum source.However,fecal scores tended to be lower(P ≤ 0.10) in MET calves regardless of colostrum source.Conclusions: Increasing the maternal supply of MET during late-pregnancy enhanced growth in utero as wel as during the pre-weaning and early post-weaning periods.Although the ~ 1 kg/d greater DM intake during the last 2–3 wk prior to parturition could explain a portion of the 2 kg extra body mass of MET calves at birth,other mechanisms potential y encompassing nutrient assimilation efficiency likely played a role.Assessing the exact mechanisms sensitive to supply of Met or total amino acid supply during the latter stages of growth in utero merit further research. | Abdulrahman S.Alharthi Fernanda Batistel Mohamed K.Abdelmegeid Gustavo Lascano Claudia Parys Ariane Helmbrecht Erminio Trevisi Juan J.Loor | 2019 | Journal of Animal Science and Biotechnology2019，10，1： | 3 |
| 2 | Expression pattern of matrix metalloprotein ases in human liver显示文摘 | Lichtinghagen R Helmbrecht T Arndt B | 1995 | Eur J Clin Chem Clin Biochem1995，33，2： | 1 |
| 3 | L-Aginine reveres the adverse pregnancy changes induced by nitric oxide synthnase inhibition in the rat显示文摘 | HELMBRECHT G D FARHAT M Y LOCHBAUM L | 1996 | Am J Obstet Gynecol1996，175，4： | 1 |
| 4 | NOD2 mutations predict the risk for surgery in pediatric-onset Crohn’s disease显示文摘 | Martin Lacher Johanna Helmbrecht Sebastian Schroepf Sibylle Koletzko Antje Ballauff Martin Classen Holm Uhlig Jochen Hubertus Dominik Hartl Peter Lohse Dietrich von Schweinitz Roland Kappler | 2010 | Journal of Pediatric Surgery2010，，8： | 1 |
| 5 | Expression pattern of matrix metalloproteinases in human liver显示文摘 | Lichtinghagen R Helmbrecht T Arndt B | 1995 | Eur J Clin Chem Clin Biochem1995，33，2： | 1 |
| 6 | Altered expression of cell cycle regulators p21, p27, and pSS in tumors of salivary glands and paranasal sinuses 显示文摘 | Affolter A Helmbrecht S Finger S | 2005 | Oncol Rep2005，1，6： | 1 |
| 7 | Chaperones in cell cycle regulation and mitogenic signal transduction:a review显示文摘 | Helmbrecht K Zeise E Rensing L | 2000 | Cell Proliferation2000，33，6： | 1 |
| 8 | Chaperones in cell cycle regulation and mitogenie signal transduction: a review显示文摘 | Helmbrecht K Zeise E Rensing L | 2000 | Cell Prolif2000，33，6： | 1 |
| 9 | Expression pattern of matrix metalloproteinases in human liver显示文摘 | LICHTINGHAGEN R HELMBRECHT T ARNDT B | 1995 | Eur J Clin Chem Clin Biochem1995，33，2： | 1 |
| 10 | Identification of a Wnt/beta-eatenin signaling pathway in human thyroid cells显示文摘 | Helmbrecht K Kispert A von Wasielewshi R | 2001 | Edocrinotogy2001，142，12： | 1 |
| 11 | L-Arginine reverses the adverse pregnancy changes induced by nitric oxide synthase inhibition in the rat显示文摘 | Helmbrecht GD Farhat MY Lochbaum L | 1996 | Am J Obstet Gynecol1996，175，4： | 1 |
| 12 | Expression Pattern of matrix metalloproteinases in Human Liver 显示文摘 | Helmbrecht T Arndt B | 1995 | Eur J Clin Chem Biochem1995，33，： | 1 |
| 13 | Chaperones in cell cycle regulation and mitogenic signal transduction : a review 显示文摘 | Helmbrecht K Zeise E | 2000 | Cell Prolif2000，33，6： | 1 |
| 14 | L-argi-nine reverses the adverse pregnancy changes induced by nitricoxide synthase inhibition in the rat显示文摘 | Helmbrecht G D Farhat M Y Lochbaum L | 1996 | Am J Obstet Gynecol1996，175，41： | 1 |
| 15 | Chaperones in cell cycle regulation and miotgenic signal transduction : review 显示文摘 | Helmbrecht K Zeise E Rensing L | 2000 | Cell Prolif2000，33，6： | 1 |
| 16 | L-arginine reverses the adverse pregnancy charges induced by nitric oxide synthase inhibition in the rat 显示文摘 | Farhat MY Lochbaum L | 1997 | Am J Obstet Gynecol1997，175，4： | 1 |
| 17 | L-Arginine reverses the adverse pregnancy changes induced by nitric oxide synthase inhibition in the rat显示文摘 | Helmbrecht GD Farhat MY | 1996 | Am J Obstet Gynecol1996，175，41： | 1 |
| 18 | L-Arginine reverses the adverse pregnancy changes induced by nitric oxide synthase inhibition in the rat显示文摘 | Helmbrecht CD Farhat MY | 1996 | Am J Obstet Gynecol1996，175，： | 1 |
| 19 | Recycling ambient microwave energy with broad-band rectenna arrays显示文摘 | Hagerty J A Helmbrecht F B McCalpin W H Zane R Popovic Z B | 2004 | IEEE Transactions on Microwave Theory and Techniques2004，52，： | 1 |
| 20 | Hirschsprung-associated enterocolitis develops independently of NOD2 variants显示文摘 | Lacher M Fitze G Helmbrecht J | 2010 | J Pediatr Surg2010，45，5： | 1 |
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