scholarly journals Digestive Ability, Physiological Characteristics, and Rumen Bacterial Community of Holstein Finishing Steers in Response to Three Nutrient Density Diets as Fattening Phases Advanced

2020 ◽  
Vol 8 (3) ◽  
pp. 335 ◽  
Author(s):  
Qinghua Qiu ◽  
Chaoyu Gao ◽  
Muhammad Aziz ur Rahman ◽  
Binghai Cao ◽  
Huawei Su
Keyword(s):  
Bacterial Community ◽  
Ambient Temperature ◽  
Alanine Aminotransferase ◽  
Nutrient Intake ◽  
Rumen Fermentation ◽  
Nutrient Density ◽  
Nutrient Digestion ◽  
Finishing Steers ◽  
Dietary Nutrient ◽  
Bacterial Richness

The aim of this study is to track the dynamic alterations in nutrient intake and digestion, rumen fermentation and plasma metabolic characteristics, and rumen bacterial community of Holstein finishing steers in response to three nutrient density diets as fattening phases advanced. A total of eighteen Holstein steers were randomly allocated into three nutrient density groups and steers in each group were fed under a three-phase fattening strategy, with nutrient density increased in each group when fattening phase advanced. Results showed that both fattening phase and dietary nutrient density significantly influenced the nutrient digestion, most of the rumen fermentation parameters, and part of bacteria at phylum and genus levels. Individually, dietary nutrient density affected the concentrations of plasma alanine aminotransferase and urea N, bacterial richness and evenness. All determined nutrient intake and plasma biochemical parameters, except for alanine aminotransferase and triglyceride, differed among fattening phases. Spearman correlation analysis revealed strong correlations between fiber intake and bacterial richness and evenness, rumen fermentation characteristics and certain bacteria. Moreover, Patescibacteria abundance was positively correlated with ambient temperature and plasma total protein. These results indicate that rumen fermentation and nutrient digestion were influenced by both dietary nutrient density and fattening phase, and these influences were regulated by certain rumen bacterial community and ruminal bacteria may be affected simultaneously by ambient temperature. This study may provide insights into diet optimization and potentially adaptive mechanism of rumen bacterial community in response to fattening phases and gradually climatic change.

scholarly journals Systematic review of metrics used to characterize dietary nutrient supply from household consumption and expenditure surveys

2022 ◽  
pp. 1-32
Author(s):  
Kevin Tang ◽  
Katherine P Adams ◽  
Elaine L Ferguson ◽  
Monica Woldt ◽  
Jennifer Yourkavitch ◽  
...  
Keyword(s):  
Systematic Review ◽  
Food Consumption ◽  
Nutrient Intake ◽  
Dietary Assessment ◽  
Household Consumption ◽  
Nutrient Supply ◽  
Nutrient Density ◽  
Consumption Data ◽  
Food Consumption Data ◽  
Dietary Nutrient

Abstract Objective: To review existing publications using Household Consumption & Expenditure Survey (HCES) data to estimate household dietary nutrient supply to (1) describe scope of available literature, (2) identify the metrics reported and parameters used to construct these metrics, (3) summarize comparisons between estimates derived from HCES and individual dietary assessment data, and (4) explore the demographic and socioeconomic sub-groups used to characterize risks of nutrient inadequacy. Design: This study is a systematic review of publications identified from online databases published between 2000 to 2019 that used HCES food consumption data to estimate household dietary nutrient supply. Further publications were identified by “snowballing” the references of included database-identified publications. Setting: Publications using data from low- and lower middle income countries Results: In total, 58 publications were included. Three metrics were reported that characterized household dietary nutrient supply: apparent nutrient intake per adult-male equivalent per day (n=35), apparent nutrient intake per capita per day (n=24), and nutrient density (n=5). Nutrient intakes were generally overestimated using HCES food consumption data, with several studies finding sizeable discrepancies compared to intake estimates based on individual dietary assessment methods. Sub-group analyses predominantly focused on measuring variation in household dietary nutrient supply according to socioeconomic position and geography. Conclusion: HCES data are increasingly being used to assess diets across populations. More research is needed to inform the development of a framework to guide the use of and qualified interpretation of dietary assessments based on these data.

scholarly journals Effects of Dietary Energy on Growth Performance, Rumen Fermentation and Bacterial Community, and Meat Quality of Holstein-Friesians Bulls Slaughtered at Different Ages

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1123 ◽  
Author(s):  
Haibo Wang ◽  
Hang Li ◽  
Fei Wu ◽  
Xinjun Qiu ◽  
Zhantao Yu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Growth Performance ◽  
Meat Quality ◽  
Energy Levels ◽  
Average Daily Gain ◽  
Rumen Fermentation ◽  
Dietary Energy ◽  
Different Ages ◽  
Slaughter Age

The objective of this study was to evaluate the effects of dietary energy levels on growth performance, rumen fermentation and bacterial community, and meat quality of Holstein-Friesians bulls slaughtered at different ages. Thirty-six Holstein-Friesians bulls (17 months of age) were divided into a 3 × 3 factorial experiment with three energy levels (LE, ME and HE; metabolizable energy is 10.12, 10.90 and 11.68 MJ/kg, respectively) of diets, and three slaughter ages (20, 23 and 26 months). Results indicated that bulls fed with ME and HE diets had higher dry matter intake, average daily gain, and dressing percentage at 23 or 26 months of age. The ME and HE diets also reduced bacterial diversity, altered relative abundances of bacteria and produced lower concentrations of acetate, but higher butyrate and valerate concentrations in rumen fluid. Increasing in dietary energy and slaughter age increased the intramuscular fat (IMF) and water holding capacity. In summary, Holstein-Friesians bulls fed with ME and HE diets, slaughtered at 23 and 26 months of age could be a good choice to produce beef with high IMF. Slaughter age may have less influence than dietary energy in altering fermentation by increasing amylolytic bacteria and decreasing cellulolytic bacteria, and thus, further affecting meat quality.

scholarly journals Maternal Dietary Nutrient Intake and Its Association  with Preterm Birth: A Case‐control Study in Beijing,  China

Nutrients ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 221 ◽  
Author(s):  
Yan Zhang ◽  
Hong Zhou ◽  
Anthony Perkins ◽  
Yan Wang ◽  
Jing Sun
Keyword(s):  
Preterm Birth ◽  
Nutrient Intake ◽  
Case Control Study ◽  
Case Control ◽  
Dietary Nutrient ◽  
Beijing China ◽  
Control Study

Dietary nutrient intake comparisons for rural and urban Russian boys, ages 6, 9, and 15 years, living in St. Petersburg and surrounding areas

1994 ◽  
Vol 6 (2) ◽  
pp. 153-159 ◽  
Author(s):  
Marilyn F. Steele ◽  
John H. Spurgeon ◽  
Karen E. French ◽  
Warren K. Giese ◽  
VN Utenko ◽  
...  
Keyword(s):  
Nutrient Intake ◽  
Rural And Urban ◽  
Dietary Nutrient ◽  
Surrounding Areas

scholarly journals Nutrient intake, rumen fermentation and growth performance of dairy calves fed extruded full-fat soybean as a replacement for soybean meal

animal ◽  
2018 ◽  
Vol 12 (4) ◽  
pp. 733-740 ◽  
Author(s):  
A. ZeidAli-Nejad ◽  
G.R. Ghorbani ◽  
S. Kargar ◽  
A. Sadeghi-Sefidmazgi ◽  
A. Pezeshki ◽  
...  
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Nutrient Intake ◽  
Rumen Fermentation ◽  
Dairy Calves

scholarly journals The Association between Daily Total Dietary Nutrient Intake and Recent Glycemic Control States of Non-Pregnant Adults 20+ Years Old from NHANES 1999–2018 (Except for 2003–2004)

Nutrients ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 4168
Author(s):  
Yin Bai ◽  
Hao Zhang ◽  
Jie Yang ◽  
Lei Peng
Keyword(s):  
Glycemic Control ◽  
Vitamin B6 ◽  
Nutrient Intake ◽  
Roc Analysis ◽  
Glycosylated Hemoglobin ◽  
Dietary Vitamin ◽  
P Value ◽  
Dependent Variables ◽  
Dietary Nutrient ◽  
Daily Total

(1) Background: Although daily total dietary nutrient intakes were potentially important factors in maintaining glycemic balance, their overall effect on glycemic control was still unclear among American adults. Objectives: We aimed to examine the association between daily total dietary nutrient intake and recent glycemic control status (RGCS). Methods: This cohort was composed of 41,302 individuals from the National Health and Nutrition Examination Survey (NHANES). The daily total intake of dietary nutrients and RGCS were independent and dependent variables, respectively. To evaluate their association, we carried out binary logistic regression, model fitting, linear discriminant analysis, and the receiver operator characteristic (ROC) analysis. Results: The result of robust check model showed that only the daily total dietary vitamin B6 intake (adjusted OR = 0.848; 95% CI: 0.738, 0.973; p-value = 0.019) was significantly negatively correlated with RGCS. When daily total dietary vitamin B6 intake and glycosylated hemoglobin (HbA1c) were used as independent variables and dependent variables, respectively, to fit the curves and lines, the established robust check model could distinguish American adults with different RGCS well. Moreover, the robust check model results of ROC analysis indicated that daily total dietary vitamin B6 intake might be a potential predictor for RGCS (AUC = 0.977; 95% CI: 0.974, 0.980; p-value < 0.001). (2) Conclusions: This study showed that only daily total dietary vitamin B6 intake was a beneficial factor in RGCS, but it might need further multicenter or prospective studies to verify whether vitamin B6 had biological implications and public health meaning for glycemic control among American adults (specifically referred to non-pregnant participants over 20 years old).

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