scholarly journals Effects of feeding alfalfa stemlage or wheat straw for dietary energy dilution on nutrient intake and digestibility, growth performance, and feeding behavior of Holstein dairy heifers

2017 ◽  
Vol 100 (9) ◽  
pp. 7106-7115 ◽  
Author(s):  
Huawei Su ◽  
Matt S. Akins ◽  
Nancy M. Esser ◽  
Robin Ogden ◽  
Wayne K. Coblentz ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Growth Performance ◽  
Wheat Straw ◽  
Nutrient Intake ◽  
Dietary Energy ◽  
Dairy Heifers

1429 Effects of feeding alfalfa stemlage or wheat straw for dietary energy dilution on growth performance and sorting behaviors of Holstein dairy heifers

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 693-693
Author(s):  
H. Su ◽  
N. M. Esser ◽  
W. K. Coblentz ◽  
K. F. Kalscheur ◽  
R. D. Hatfield ◽  
...  
Keyword(s):  
Growth Performance ◽  
Wheat Straw ◽  
Dietary Energy ◽  
Dairy Heifers

scholarly journals Nutrient Intake and Feeding Behavior of Growing Dairy Heifers: Effects of Dietary Dilution

2008 ◽  
Vol 91 (7) ◽  
pp. 2786-2795 ◽  
Author(s):  
A.M. Greter ◽  
T.J. DeVries ◽  
M.A.G. von Keyserlingk
Keyword(s):  
Feeding Behavior ◽  
Nutrient Intake ◽  
Dairy Heifers

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 The Dietary Supplemental Effect of Nitroethanol in Comparison with Monensin on Methane Emission, Growth Performance and Carcass Characteristics in Female Lambs

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 327
Author(s):  
Zhen-Wei Zhang ◽  
Yan-Lu Wang ◽  
Yong-Yan Chen ◽  
Luo-Tong Zhang ◽  
Ying-Jie Zhang ◽  
...  
Keyword(s):  
Energy Loss ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Nutrient Digestibility ◽  
Dietary Energy ◽  
Ch4 Production ◽  
Net Revenue ◽  
Emission Growth

This study was conducted to evaluate the dietary supplemental effects of 2-nitroethanol (NEOH) in comparison with monensin on methane (CH4) emission, growth performance and carcass characteristics in female lambs. Sixty female, small-tailed Chinese Han lambs (3.5 ± 0.3 month) were randomly allotted into three dietary treatment groups: (1) Control group, a basal control diet, (2) monensin group, the basal diet added with 40 mg/kg monensin, (3) NEOH group, the basal diet added with 277 mg/kg nitroethanol, and the feedlotting trial lasted for 70 days. Although dietary addition of monensin and NEOH did not affect nutrient digestibility of lambs, both monensin and NEOH decreased the calculated CH4 production (12.7% vs. 17.4% decrease; p < 0.01). In addition, the CH4 production represents less dietary energy loss in the monensin and NEOH group than in the control, indicating that monensin and NEOH are potent CH4 inhibitors that can reduce dietary energy loss. Dietary addition of monensin and NEOH decreased dry matter intake (p < 0.01); however, they increased the ADG of female lambs (p < 0.01). As a result, both monensin and NEOH increased feed conversion efficiency of the feedlotting lambs (p < 0.01), suggesting that feed energy saved from CH4 production promoted the feed efficiency and ADG in the present study. Except for the fact that NEOH addition increased the net muscle percentage to carcass weight (p = 0.03), neither monensin nor NEOH had a significant influence on carcass characteristics of female lambs (p > 0.05). From an economic point of view, NEOH and monensin caused a reduction in feed consumption costs, therefore resulting in a higher net revenue and economic efficiency than the control. In summary, dietary supplementation of NEOH in comparison with monensin presented a more promoting effect on energy utilization in female lambs by inhibiting rumen methanogenesis more efficiently, and NEOH improved the net revenue and economic efficiency more significantly than monensin.

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