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

Author(s):  
Yetong Xu ◽  
Huiyuan Chen ◽  
Ke Wan ◽  
Kaifeng Zhou ◽  
Yongsheng Wang ◽  
...  

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 < 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 < 0.001). Furthermore, gain:feed ratios in LP + DCA and LP + DCA + GLUC groups did not differ from that of the CON group (P > 0.10). Pigs fed the LP + DCA diet had higher pH values of meat at 24 h post-mortem than the CON group (P < 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 < 0.05), and increased the Arg and Leu contents in the LD muscle compared to the LP + DCA diet (P < 0.05). Moreover, the LP + DCA diet induced a higher C18:1n9t percentage in the LD muscle of pigs compared to other groups (P < 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.

2015 ◽  
Vol 14 (2) ◽  
pp. 104
Author(s):  
Novieanto Purnomo ◽  
Nur Bambang Priyo Utomo ◽  
Zafril Imran Azwar

<p class="BasicParagraph" align="center"><strong>ABSTRACT</strong><strong></strong></p><p class="BasicParagraph"> </p><p class="BasicParagraph">This study was to evaluate growth performance and meat quality of Siamese catfish <em>Pangasianodon hypophthalmus </em>fed on commercial diets with different protein levels. Fish with average initial body weight of 33,61 g were reared in hapa (2×2×1 m<sup>3</sup>) at density of 30 ind/hapa. Fish were hand-fed with experimental diet to satiety twice daily for 60 days. Experimental design was set in completely randomized design. Each treatment was done in triplicates. Experimental diets were a commercial diet to contain four differennt levels of protein; i.e. diet A (18%), diet B (23%), diet C (28%), and diet D (32%). Specific growth rate (SGR), feed conversion ratio (FCR), protein (RP) and lipid (RL) retention, hepatosomatic index (HSI), lipid and glycogen content of liver, protein and lipid content of meat, edible portion, and fillet textural were calculated. The results of the experiment showed that the highest weight gain and SGR, lowest FCR and meat protein were obtained in the group of fish fed 23%–32% protein diets. In conclusion, 23% protein diets gave the best growth performance and meat quality of Siamese catfish.</p><p class="BasicParagraph"> </p><p class="BasicParagraph">Keywords : growth performance, meat quality, commercial diet, <em>Pangasianodon hypophthalmus</em></p><p class="BasicParagraph"> </p><p class="BasicParagraph"> </p><p class="BasicParagraph" align="center"><strong>ABSTRAK</strong></p><p class="BasicParagraph"> </p><p class="BasicParagraph">Penelitian ini bertujuan untuk mengevaluasi kinerja pertumbuhan dan kualitas daging ikan patin siam <em>Pangasianodon hypophthalmus</em> yang diberi pakan komersial dengan kandungan protein berbeda. Ikan patin yang digunakan dengan bobot awal 33,61 g ditebar sebanyak 30 ekor/hapa ukuran 2×1×1 m<sup>3</sup> dan ikan diberi pakan percobaan dua kali sehari secara <em>at satiation </em>selama 60 hari. Penelitian ini didesain dalam rancangan acak lengkap dengan empat perlakuan dan tiga ulangan. Pakan yang digunakan adalah pakan komersial dengan empat kandungan protein yang berbeda: pakan A (18%), pakan B (23%), pakan C (28%), dan pakan D (32%). Parameter uji pada penelitian ini adalah laju pertumbuhan spesifik (SGR), rasio konversi pakan (FCR), retensi protein (RP), retensi lemak (RL), indeks hepatosomatik (HSI), lemak dan glikogen hati, protein dan lemak daging, serta tekstur daging. Hasil penelitian menunjukan bahwa penambahan bobot tubuh, SGR tertinggi, FCR terendah, dan protein daging diperoleh pada perlakuan protein pakan 23%–32%. Hasil penelitian ini menunjukkan bahwa perlakuan protein pakan 23% memberikan kinerja pertumbuhan dan kualitas daging ikan terbaik.</p><p class="BasicParagraph"> </p><p>Kata kunci: kinerja pertumbuhan, kualitas daging, pakan komersial, <em>Pangasianodon hypophthalmus</em></p>


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 105-106
Author(s):  
Xianyong Ma ◽  
Miao Yu ◽  
Zhenming Li ◽  
Dun Deng ◽  
Ting Rong

Abstract Object: This study aimed to investigate the effects of Hermetia illucens larvae meal on growth performance, carcass traits, and meat quality of finishing pigs. Methods: Seventy-two crossbred (Duroc × Landrace × Large White) pigs (76.0 ± 0.52 kg) were randomly allocated to three experimental treatments, and fed the diet with supplementation of 0%, 4%, or 8% Hermetia illucens larvae meal (HILM), respectively. The experiment lasted 42 days. Results: The average daily gain (ADG) of pigs in 4% HILM group was higher, and the feed gain ratio (F/G) was lower than the control and 8% HILM group (P &lt; 0.05). The loin-eye area, marbling scores, and inosine monophosphate (IMP) content of Longissimus thoracis muscle (LM) in 4% and 8% HILM group were higher than the control group (P &lt; 0.05). There were no diffenences on backfat thickness, pH value, meat color, drip loss among three groups. Compared with the control, 4% HILM significantly increased the content of intramuscular fat (IMF) (P &lt; 0.05). Meanwhile, the mRNA expression level of fatty acid synthase (FAS), acetyl CoA carboxylase α (ACCα), lipoprotein lipase (LPL), and MyHC-IIa in the LM was higher in 4% HILM group than that in 8% Hermetia illucens larvae meal and the control group (P &lt; 0.05). The abundance of Lactobacillus, Pseudobutyrivibrio, Roseburia, Oribacterium, and Faecalibacterium was higher in 4% Hermetia illucens larvae meal group than the control group (P &lt; 0.05); The abundance of Streptococcus was lower and Peptococcus was higher in 4% HILM group than 8% HILM group. Conclusion: HILM can be used as an effective feed ingredient in finishing pig’ diet up to 4% level, which was beneficial for the growth performance, carcass trait, and meat quality of pigs, and the underlying mechanism maybe due to the altered lipogenic potential, myofiber characteristics and the microbial composition regulated by HILM.


2019 ◽  
Vol 5 (4) ◽  
pp. 380-385
Author(s):  
Junqiu Luo ◽  
Dafu Zeng ◽  
Long Cheng ◽  
Xiangbing Mao ◽  
Jie Yu ◽  
...  

2019 ◽  
Vol 99 (1) ◽  
pp. 123-131
Author(s):  
Y.P. Zhu ◽  
P. Zhou ◽  
L. Zhang ◽  
J.L. Li ◽  
F. Gao ◽  
...  

The aim of this study was to investigate the effects of dietary crude protein levels and cysteamine (CS) supplementation on meat quality and related indices in longissimus dorsi muscle of finishing pigs. One hundred and twenty barrows were randomly allocated to a 2 × 2 factorial arrangement with five replicates of six pigs each. The primary variations were crude protein levels (14% or 10%) and CS supplemental levels (0 or 140 mg kg−1). After 41 d, 10 pigs per treatment were slaughtered. The results showed that low-protein level diets (LPDs) decreased Warner–Bratzler shear force (P < 0.01) and increased the content of intramuscular fat (P < 0.01). The mRNA expressions of lipogenic genes were up-regulated (P < 0.01), and the mRNA expressions of lipolytic genes were down-regulated (P < 0.01) in pigs fed LPD. LPDs increased the mRNA expressions of μ-calpain, and decreased the mRNA expression of calpastatin (P < 0.01). In addition, CS supplementation increased the mRNA expression of μ-calpain (P < 0.01). In conclusion, LPD improved the meat quality probably through regulating the lipogenesis, lipolysis, and the proteolysis process in muscle. The CS supplementation did not affect the meat quality of finishing pigs. Moreover, no significant interaction between dietary protein levels and CS supplementation for the meat quality of finishing pigs was observed.


2020 ◽  
Vol 46 (2) ◽  
pp. 193-201
Author(s):  
A. O. Yusuf ◽  
T. O. Ajayi ◽  
O. S. Ajayi ◽  
O. A. Yusuf

Eighteen West African Dwarf Goats (WAD) were used in 77-days experimental period to test the efficacy of high protein levels on growth performance and parasite loads of WAD goat. The goats were grouped into three treatments of six animals each per group using their FAMACHA scores (C3-E5) in a completely randomized design. Concentrate diets of varying levels of protein were fed at 7.5 % (low protein, LP), 10.5 % (medium protein, MP) and 14.5% (high protein, HP) inclusion level, respectively while Megathyrsus maximums and water was providedad libitum. Data were collect on FAMACHA score, weight changes. oocyst count and egg per gram of the faeces. The result of this study indicated that the supplemented protein decreased the FAMACHA score from the onset of the experiment to the end of the experiment. Animals fed high protein diet displayed highest growth performance, followed by animals fed with medium protein diet while animals fed with low protein diets had a slight increase in their growth performance.Goats fed high proteinous diet (HP) had a reduced oocyst and egg per gram of the faeces compared to their counterparts fed medium and low protein diets. It can be concluded that feeding WAD goats up to 14% crude protein inclusion is quite adequate to cover their protein requirements and increase their growth performance.Feeding high proteinous diets to goats is an economic and cost effective way of controlling gastrointestinal parasite.


2021 ◽  
pp. 1-7
Author(s):  
Zhongyang Guo ◽  
Xiaoling Chen ◽  
Daiwen Chen ◽  
Mingzhou Li ◽  
Jingdong Yin ◽  
...  

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 195-196
Author(s):  
Vetriselvi Sampath ◽  
Hyun Ju Park ◽  
Inho Kim ◽  
Huan Wang ◽  
Raihanul Hoque

Abstract The study was conducted to assess the effect of black pepper (BP) supplementation on the growth performance, nutrient digestibility, fecal microbial, fecal gas emission, and meat quality of finishing pigs. A total of 180 crossbred [(Landrace × Yorkshire) × Duroc] finishing pigs with average initial body weight (BW) of 53.72 ± 1.42 kg were used in 10-week trial and allotted to 6 dietary treatments (6 replications pens/treatment with 5 pigs per pen). The dietary treatments were: CON (basal diet), TRT1- CON + 0.025% BP, TRT2- CON + 0.05% BP, TRT3- CON + 0.1% BP, TRT4- CON + 0.2% BP, TRT5- CON + 0.4% BP. A linear increase (P = 0.0380, 0.0061) in body weight gain (BWG) and average daily gain (ADG) were observed respectively, during the overall trial in pigs fed BP supplemented diet compared to control. The dietary supplementation of BP showed a linear increase (P=0.0065) in gain and feed ratio (G: F) at week 10. However, there were no significant results observed on average daily feed intake (ADFI) during the overall experiment. The total tract digestibility of dry matter (DM) was linearly improved (P=0.0531) in BP treatment groups compared to control. In addition, BP diet supplementation had linearly increased fecal Lactobacillus counts (P=0.0482) and decreased E. coli counts (P=0.0306) in pigs at week 10. Furthermore, NH3, methyl mercaptans, and acetic acid was linearly decreased (P=0.0227, 0.0555,0.0541) in pigs fed BP supplementation compare to control. The inclusion of BP supplementation in pigs diet had linearly increased (P=0.0146) the backfat thickness at week 10. Thus, we concluded that BP supplementation had positively enhanced the growth performance, nutrient digestibility, fecal microbial, fecal gas emission, and meat quality of finishing pigs.


2018 ◽  
Vol 99 (5) ◽  
pp. 2096-2107 ◽  
Author(s):  
Yang Zhao ◽  
Chao Jin ◽  
Yuedong Xuan ◽  
Pan Zhou ◽  
Zhengfeng Fang ◽  
...  

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