Protein supplementation during mid-gestation affects maternal voluntary feed intake, performance, digestibility, and uterine blood flow of beef cows.

التفاصيل البيبلوغرافية
العنوان:	Protein supplementation during mid-gestation affects maternal voluntary feed intake, performance, digestibility, and uterine blood flow of beef cows.
المؤلفون:	Meneses JAM; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil.; Department of Veterinary Medicine and Animal Science, Universidad de Ciencias Aplicadas y Ambientales, Cartagena, Bolivar, Colombia., Nascimento KB; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Galvão MC; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Moreira GM; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Chalfun LHL; Department of Veterinary Medicine, Centro Universitário de Lavras, Lavras, Minas Gerais, Brazil., Souza SP; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Ramírez-Zamudio GD; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Ladeira MM; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Duarte MS; Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada., Casagrande DR; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil., Gionbelli MP; Department of Animal Science, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil.
المصدر:	Journal of animal physiology and animal nutrition [J Anim Physiol Anim Nutr (Berl)] 2024 Jun 23. Date of Electronic Publication: 2024 Jun 23.
Publication Model:	Ahead of Print
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: Blackwell Science Country of Publication: Germany NLM ID: 101126979 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1439-0396 (Electronic) Linking ISSN: 09312439 NLM ISO Abbreviation: J Anim Physiol Anim Nutr (Berl) Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: [Berlin] : Blackwell Science, c2001-
مستخلص:	This study aimed to assess the impact of protein supplementation and its interaction with calf sex (CS) on the performance, metabolism and physiology of pregnant beef cows. Fifty-two multiparous Zebu beef cows carrying female (n = 22) and male (n = 30) fetuses were used. Cows were individually housed from day 100 to 200 of gestation and randomly assigned to restricted (RES, n = 26) or supplemented (SUP, n = 26) groups. The RES cows were ad libitum fed a basal diet (corn silage + sugarcane bagasse + mineral mixture), achieving 5.5% crude protein (CP), while SUP cows received the same basal diet plus a protein supplement (40% CP, at 3.5 g/kg of body weight). All cows were fed the same diet during late gestation. Differences were declared at p < 0.05. No significant interaction between maternal nutrition and calf sex was found for maternal outcomes (p ≥ 0.34). The SUP treatment increased the total dry matter (DM) intake (p ≤ 0.01) by 32% and 19% at mid- and late-gestation respectively. The total tract digestibility of all diet components was improved by SUP treatment at day 200 of gestation (p ≤ 0.02), as well as the ruminal microbial CP production (p ≤ 0.01). The SUP treatment increased (p ≤ 0.03) the cows' body score condition, ribeye area, the average daily gain (ADG) of pregnant components (PREG; i.e., weight accretion of cows caused by pregnancy) and the ADG of maternal tissues (i.e., weight accretion discounting the gain related to gestation) in the mid-gestation. The SUP cows exhibited a lower maternal ADG (p < 0.01) compared to RES cows in late pregnancy. There was a 24% additional gain (p < 0.01) in the PREG components for SUP cows during late gestation, which in turn improved the calf birthweight (p = 0.05). The uterine arterial resistance and pulsatility indexes (p ≤ 0.01) at mid-gestation were greater for RES cows. In conclusion, protein supplementation during mid-gestation is an effective practice for improving maternal performance, growth of the gravid uterus and the offspring's birth weight. (© 2024 Wiley‐VCH GmbH. Published by John Wiley & Sons Ltd.)
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معلومات مُعتمدة:	311660/2023-1 CNPq-Conselho Nacional de Desenvolvimento Científico e Tecnológico; 23038.000839/2018-53 CAPES-Coordenação de Aperfeiçoamento de Pessoal de Nível Superior CAPES PROEX 676/2018; APQ-04181-22 FAPEMIG-Fundação de Amparo à Pesquisa de MG and INCT-CA-Instituto Nacional de Ciência e Tecnologia de Ciência Animal; APQ-04519-22 FAPEMIG-Fundação de Amparo à Pesquisa de MG and INCT-CA-Instituto Nacional de Ciência e Tecnologia de Ciência Animal; BPD-00215-22 FAPEMIG-Fundação de Amparo à Pesquisa de MG and INCT-CA-Instituto Nacional de Ciência e Tecnologia de Ciência Animal
فهرسة مساهمة:	Keywords: Doppler; fetal programming; gestational nutrition; maternal tissue; offspring sex
تواريخ الأحداث:	Date Created: 20240626 Latest Revision: 20240626
رمز التحديث:	20240627
DOI:	10.1111/jpn.14001
PMID:	38922982
قاعدة البيانات:	MEDLINE

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تدمد:	1439-0396
DOI:	10.1111/jpn.14001