scholarly journals Effects of dietary energy and lysine levels on growth performance and carcass yields of Pekin ducks from hatch to 21 days of age

2017 ◽  
Vol 96 (9) ◽  
pp. 3361-3366 ◽  
Author(s):  
Z.G. Wen ◽  
T.J. Rasolofomanana ◽  
J. Tang ◽  
Y. Jiang ◽  
M. Xie ◽  
...  
Keyword(s):  
Growth Performance ◽  
Dietary Energy ◽  
Pekin Ducks

scholarly journals Effects of Dietary Energy on Growth Performance and Carcass Quality of White Growing Pekin Ducks from Two to Six Weeks of Age

2008 ◽  
Vol 87 (6) ◽  
pp. 1162-1164 ◽  
Author(s):  
H.P. Fan ◽  
M. Xie ◽  
W.W. Wang ◽  
S.S. Hou ◽  
W. Huang
Keyword(s):  
Growth Performance ◽  
Carcass Quality ◽  
Dietary Energy ◽  
Pekin Ducks

scholarly journals Effects of dietary energy and protein content and lipid source on growth performance and carcass traits in Pekin ducks

2019 ◽  
Vol 98 (10) ◽  
pp. 4829-4837 ◽  
Author(s):  
J.B. Liu ◽  
H.L. Yan ◽  
Y Zhang ◽  
Y.D. Hu ◽  
H.F. Zhang
Keyword(s):  
Growth Performance ◽  
Protein Content ◽  
Carcass Traits ◽  
Dietary Energy ◽  
Pekin Ducks ◽  
Lipid Source

scholarly journals Effects of dietary energy and methionine on growth performance and carcass traits of growing Pekin ducks from 15 to 42 days of age

2019 ◽  
Vol 98 (11) ◽  
pp. 5870-5875 ◽  
Author(s):  
Y B Wu ◽  
J Tang ◽  
M Xie ◽  
R Zhao ◽  
W Huang ◽  
...  
Keyword(s):  
Growth Performance ◽  
Carcass Traits ◽  
Dietary Energy ◽  
Pekin Ducks

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.

scholarly journals Effect of dietary energy density and folic acid supplementation on white striping occurrence and growth performance of broiler chickens

2021 ◽  
Author(s):  
Deborah Adewole ◽  
Janice L MacIsaac ◽  
Chengbo Yang
Keyword(s):  
Folic Acid ◽  
Energy Density ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Energy Levels ◽  
Folic Acid Supplementation ◽  
Normal Breast ◽  
Dietary Energy ◽  
White Striping ◽  
Dietary Energy Density

Broilers were allocated to eight treatments consisting of two energy levels: Normal (NE) and High (HE), and four folic acid (FA) levels (2.2, 5, 10 and 15 ppm). On d 42, two male and two female chickens were euthanized per pen and white striping (WS) evaluation was performed on the Pectoralis major. Birds fed HE diets had reduced (P<0.05) FI and FCR than those on NE diets. With increasing FA levels, there was reduced (P<0.05) WS score, increased (P<0.05) normal breast fillet percentage in female but not in the male chickens. WS scores were higher (P<0.01) in male chickens than in the females.

scholarly journals Effects of Dietary Energy Level and Slaughter Weight on Growth Performance and Grades and Quality Traits of the Carcass in Finishing Pigs

2009 ◽  
Vol 51 (2) ◽  
pp. 143-154 ◽  
Author(s):  
Man-Jong Park ◽  
Jin-Yeun Jeong ◽  
Duck-Min Ha ◽  
Jeong-Cheol Han ◽  
Tae-Geon Sim ◽  
...  
Keyword(s):  
Energy Level ◽  
Growth Performance ◽  
Quality Traits ◽  
Dietary Energy ◽  
Finishing Pigs ◽  
Slaughter Weight
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