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 Effect of dietary energy and protein content on growth and carcass traits of Pekin ducks

2015 ◽  
Vol 94 (3) ◽  
pp. 384-394 ◽  
Author(s):  
Q.F. Zeng ◽  
P. Cherry ◽  
A. Doster ◽  
R. Murdoch ◽  
O. Adeola ◽  
...  
Keyword(s):  
Protein Content ◽  
Carcass Traits ◽  
Dietary Energy ◽  
Pekin Ducks

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 Pantothenic Acid Supplementation on Growth Performance, Carcass Traits, Plasma Parameters of Starter White Pekin Ducks Fed a Corn–Soybean Meal Diet

Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2872
Author(s):  
Jing Tang ◽  
Yongbao Wu ◽  
Bo Zhang ◽  
Zhiguo Qi ◽  
Dawei Luo ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Carcass Traits ◽  
Pantothenic Acid ◽  
Basal Diet ◽  
Daily Weight Gain ◽  
Plasma Parameters ◽  
Growth Depression ◽  
Acid Supplementation ◽  
Pekin Ducks

This study aimed to evaluate the effects of different dietary pantothenic acid levels on growth performance, carcass traits, and plasma biochemical parameters of starter Pekin ducks from 1 to 21 days of age, as well as the pantothenic acid requirement of starter ducks. A total of 384 one-day-old male white Pekin ducklings were assigned randomly into 6 dietary treatments, each with 8 replicate pens of 8 ducks. Ducks were fed conventional basal corn–soybean diets containing 8.5, 10.5, 12.5, 14.5, 16.5, and 18.5 mg/kg pantothenic acid for 21 days. Growth depression, poor pantothenic acid status, fasting hypoglycemia, and elevated plasma uric acid (UA) content were observed in the ducks fed the pantothenic acid-deficient basal diet (p < 0.05), and these adverse effects were ameliorated by pantothenic acid supplementation. Among all ducks, the birds fed the basal diet with no supplementation of pantothenic acid had the lowest body weight, average daily weight gain (ADG), average daily feed intake (ADFI), breast meat yield, and plasma pantothenic acid and glucose contents (p < 0.05), and the greatest plasma UA content (p < 0.05). In addition, all these parameters showed a linear or quadratic response as dietary pantothenic acid levels increased (p < 0.05). According to broken-line regression, the pantothenic acid requirements of starter male white Pekin ducks for body weight, ADG, and plasma pantothenic acid content were 13.36, 13.29, and 15.0 mg/kg, respectively. The data potentially provides theoretical support for the utilization of pantothenic acid in duck production.

Effects of supplementing low-protein diets with sodium dichloroacetate and glucose on growth performance, carcass traits and meat quality of growing-finishing pigs

2021 ◽  
Author(s):  
Yetong Xu ◽  
Huiyuan Chen ◽  
Ke Wan ◽  
Kaifeng Zhou ◽  
Yongsheng Wang ◽  
...  
Keyword(s):  
Growth Performance ◽  
Protein Content ◽  
Meat Quality ◽  
Carcass Traits ◽  
Experimental Period ◽  
Finishing Pigs ◽  
Protein Levels ◽  
Low Protein ◽  
Protein Diets

Abstract The objective of this study was to evaluate the effects of supplementing low-protein diets with sodium dichloroacetate (DCA) and glucose on growth performance, carcass traits, and meat quality of growing-finishing pigs. A total of 80 crossbred (Duroc × Landrace × Large White) growing barrows (27 ± 0.4 kg body weight) were allocated randomly to one of the five treatments during three successive 4-week periods. There were five diets in each phase. Diet 1 was the control diet with normal protein levels (CON) where protein levels in the three phases were 18%, 16.5%, and 15.5%, respectively. The dietary protein levels of Diets 2, 3, 4, and 5 (the low-protein diets, LP) were decreased by 4.5% compared to Diet 1. Additionally, Diets 3 and 4 were supplemented with an extra 120 mg/kg DCA (LP + DCA) or 1.8% glucose (LP + GLUC), respectively. Diet 5 was further supplemented with an extra 120 mg/kg DCA and 1.8% glucose (LP + DCA + GLUC). The LP + DCA diet increased the average daily weight gain of pigs compared to the CON and LP diet in phase 3 and the overall experimental period (P &lt; 0.001). The LP diet reduced the gain:feed ratios of the pigs compared to the CON, LP + DCA, and LP + DCA + GLUC diets in phase 1 and the overall experimental period (P &lt; 0.001). Furthermore, gain:feed ratios in LP + DCA and LP + DCA + GLUC groups did not differ from that of the CON group (P &gt; 0.10). Pigs fed the LP + DCA diet had higher pH values of meat at 24 h post-mortem than the CON group (P &lt; 0.05). The LP + DCA + GLUC diet increased the total protein content in the longissimus dorsi (LD) muscle of pigs, compared to the other dietary treatments (P &lt; 0.05), and increased the Arg and Leu contents in the LD muscle compared to the LP + DCA diet (P &lt; 0.05). Moreover, the LP + DCA diet induced a higher C18:1n9t percentage in the LD muscle of pigs compared to other groups (P &lt; 0.05). In conclusion, an LP diet reduced the feed efficiency in pigs and barely affected meat quality, whereas 120 mg/kg DCA supplementation in an LP diet improved the growth performance of growing-finishing pigs, showed modest effects on carcass traits, and improved the muscle protein content with the addition of glucose.

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 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

Effects of ambient temperature on growth performance and carcass traits of male growing White Pekin ducks

2019 ◽  
Vol 60 (5) ◽  
pp. 513-516
Author(s):  
P. X. Sun ◽  
Z. J. Shen ◽  
J. Tang ◽  
W. Huang ◽  
S. S. Hou ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Growth Performance ◽  
Carcass Traits ◽  
Pekin Ducks
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