scholarly journals PSV-11 Effects of plasma protein on growth performance and intestinal health of weaned pigs

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 197-197
Author(s):  
Gabriela E Martinez Padilla ◽  
Ysenia Victoria Silva-Guillen ◽  
Kory Moran ◽  
Xi Lin ◽  
Jack Odle ◽  
...  
Keyword(s):  
Growth Performance ◽  
Plasma Protein ◽  
Control Diet ◽  
Intestinal Morphology ◽  
Watery Diarrhea ◽  
Intestinal Health ◽  
Functional Protein ◽  
Ki 67 ◽  
Cell Counts ◽  
Dietary Treatments

Abstract This study was conducted to evaluate the effects of using plasma protein (PP) as a highly digestible, functional protein source in nursery pig diets on growth performance and intestinal health. Pigs (n = 64; 6.53 ± 0.12 kg BW) weaned at 21 d of age were blocked by litter and BW and randomly assigned within blocks to 1 of 2 dietary treatments in a 35-d study. Four pigs were housed per pen, using a total of 16 pens (8 replicate pens per treatment). Treatments were: 1) control diet (without growth-promoting minerals or antibiotics) without PP, and 2) control diet with 4% of PP replacing SBM on a 1:1 basis. Diets were fed in 3 feeding phases (7, 14, and 14 days, respectively) and PP was included in all phases. Supplementation of PP tended (P = 0.07) to increase ADG (204 vs. 150 g/d) and improved (P = 0.02) gain:feed (812 vs 572 g/kg) during wk 2 only. Individual diarrhea scores (scale from 0=very hard to 6=watery diarrhea) determined using fecal loops changed over time (P < 0.001; 2.1, 2.4, 4.1 and 3.5 for d 1, 3, 7, and 14 respectively), but were not affected by PP. No differences were detected for intestinal morphology measured on d 35 in duodenum, jejunum and ileum. Cell proliferation using Ki-67 staining was increased by PP (86.6 vs. 72.2 positive cells) only in the ileum (P = 0.03). No differences in mucosal concentrations of IL-10, TNF-α, and IFN-γ in the duodenum, jejunum or ileum were detected. Number of eosinophils in blood decreased (14.1 vs. 34.8 cells/µL; P = 0.004), while red blood cell counts (5.9 vs 6.2 x 106 cells/µL; P = 0.09) and neutrophil counts (529 vs. 695 cells/µL; P = 0.07) tended to decrease with PP. Results suggest that PP was not effective in improving overall growth performance and had minimal effects on intestinal health of weanling pigs.

scholarly journals PSIX-6 Effect of dacitic tuff breccia in nursery diets on pig growth performance, blood parameters, and intestinal morphology

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 188-188
Author(s):  
Ricardo M Garcia ◽  
Jon Ferrel ◽  
Morgan T Thayer ◽  
Julie F Mahoney ◽  
Alan W Duttlinger ◽  
...  
Keyword(s):  
Growth Performance ◽  
Control Diet ◽  
Blood Parameters ◽  
Intraepithelial Lymphocytes ◽  
Intestinal Morphology ◽  
Proper Function ◽  
Crypt Depth ◽  
Wbc Count ◽  
Dietary Treatments ◽  
Tuff Breccia

Abstract Trace element and mineral intake are important for proper function of the immune system and various metabolic processes. The objective of this experiment was to evaluate the effect of a dacitic tuff breccia (DTB), classified as a hydrated sodium calcium aluminosilicate, in the diet of nursery pigs. Dietary treatments were: 1) Control diet (CON), 2) CON + 0.25% DTB (DTB1), and 3) CON + 0.50% DTB (DTB2). Pigs (6.79 + 0.064 kg; 26d of age) were individually housed and fed dietary treatments for 21 d (n=48; 16/trt). At the end of the experiment, blood, jejunal, and ileal samples were collected for a typical metabolic panel and basic histologic and morphologic measurements. DTB2 fed pigs tended (P=0.07) to have greater ADG than CON and DTB1 fed pigs (392, 397, 430g/d for CON, DTB1, DTB2, respectively), and greater (P=0.008) ADFI (591, 592, 669g/d for CON, DTB1, DTB2, respectively). Gain:Feed was not different (P=0.75) among treatments (0.655, 0.663, 0.644 for CON, DTB1, DTB2, respectively). Crypt depth in the jejunum was greater (P=0.04) for DTB1 compared to CON fed pigs but did not differ from DTB2 fed pigs (254.7, 292.0, 275.6mm for CON, DTB1, DTB2, respectively). Villous height, villous:crypt, number of goblet cells and intraepithelial lymphocytes did not differ among treatments in both ileum and jejunum (P &gt;0.17). Total white blood cell (WBC) count did not differ (P &gt;0.10). However, the proportion of WBC that were monocytes was lower (P=0.024) in DTB1 compared to CON and DTB2 fed pigs (1.27, 0.79, 1.45% for CON, DTB1, DTB2, respectively). Blood Urea Nitrogen (BUN) concentration tended (P=0.06) to be linearly decreased with increasing DTB concentrations (9.27, 8.80, 7.75mg/dL). DTB inclusion at 0.5% in nursery pig diets tended to improve growth performance, while inclusion at 0.25% increased jejunal crypt depth and reduced monocytes:WBC and increasing DTB concentrations tended to decreased BUN linearly.

Effect of capsaicin and capsaicin plus DL-methionine hydroxy analog in diet on growth performance and gastrointestinal conditions of nursery pigs

2019 ◽  
Author(s):  
Siriporn Namted ◽  
Theerawit Poeikhampha ◽  
Choawit Rakangthong ◽  
Chaiyapoom Bunchasak
Keyword(s):  
Lactic Acid ◽  
Growth Performance ◽  
Synergistic Effects ◽  
Control Diet ◽  
Intestinal Morphology ◽  
Control Group ◽  
Nursery Pigs ◽  
Crypt Depth ◽  
Gastrointestinal Conditions ◽  
Dietary Treatments

The study was conducted to determine the effect of supplemental capsaicin (CS) or capsaicin plus DL-methionine hydroxy analog (CS+LMA) in diets on growth performance and gastrointestinal conditions of nursery pigs. Seventy-two castrated male piglets (BW 7.79 ± 0.02 kg) were offered diets for 6 weeks as follows: 1) control diet, 2) control diet with capsaicin 2.5 ppm (CS), and 3) control diet with capsaicin 2.5 ppm plus DL-LMA 0.05 % (CS+LMA). The dietary treatments did not influence growth performance, gastrointestinal pH and the bacterial population in the caecum (P>0.05). However, in the caecum, number of Lactobacillus spp. tended to increase (P=0.09), and lactic acid concentration was increased (P less than 0.05) by CS+LMA supplementation. The supplemental CS or CS+LMA increased the villus height (P less than 0.01), and CS+LMA supplementation increased the crypt depth (P less than 0.05) in the segment of duodenum compared to the control group. The blood urea nitrogen (BUN) was not influenced by CS or CSLMA supplementations (P>0.05). In conclusion, supplementing CS improved the small intestinal morphology, and there were synergistic effects on the duodenal crypt depth and caecal lactic acid when LMA was combined with CS.

scholarly journals Protective Effect of Lactobacillus plantarum P8 on Growth Performance, Intestinal Health, and Microbiota in Eimeria-Infected Broilers

2021 ◽  
Vol 12 ◽  
Author(s):  
Yang Wang ◽  
Xiaoguo Lv ◽  
Xuemin Li ◽  
Jinshan Zhao ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Gut Microbiota ◽  
Growth Performance ◽  
Lactobacillus Plantarum ◽  
Control Diet ◽  
Intestinal Barrier ◽  
Intestinal Morphology ◽  
Intestinal Health ◽  
Commercial Broiler ◽  
High Level

Coccidiosis is one of the major parasitic diseases in the commercial broiler industry. Probiotics can protect poultry against Eimeria infection. However, the mechanisms are not fully known. Therefore, Lactobacillus plantarum P8 (P8) was used to investigate its anti-coccidial property and mechanism. Five hundred broilers were allocated to five treatments: control diet (NC), control diet + Eimeria infection (IC), control diet containing 1 × 107 cfu/g P8 + Eimeria infection (P8L), control diet containing 1 × 108 cfu/g P8 + Eimeria infection (P8H), and control diet + Eimeria infection + Diclazuril (DIC). At day 14, all treatments except NC were inoculated with sporulated oocysts. Results indicated that Eimeria infection increased the mortality and oocysts shedding, and declined the growth performance as well as the intestinal barrier in Eimeria-treated broilers. On the contrary, dietary supplementation of low level P8, high level P8 and DIC decreased the mortality and oocysts shedding, but improved the growth performance and intestinal barrier. The impaired intestinal morphology in the IC group was also improved by P8H and DIC treatments. Besides, the elevated oxidative stress and pro-inflammation in Eimeria-infected broilers were reduced by P8L, P8H, and DIC treatments. Metagenomic analysis indicated P8 altered the structure of the gut microbiota, and the alteration was more obvious at day 21 than day 42. Notably, IC also increased the abundances of Eimeriidae, Eimeria and Eimeria tenella at day 21, while P8L and DIC decreased the abundances. Correlation analysis revealed that bacteria in Eimeria-treated broilers positively correlated with the intestinal permeability, oxidative stress and inflammation, while bacteria in broilers receiving P8L and DIC negatively correlated with the aforementioned pathological indices. Functional prediction demonstrated that the metagenomes of Eimeria-infected broilers were involved in several diseases. But the metagenomes of P8L-treated broilers were involved in energy metabolism and replication repair. In conclusion, dietary P8 supplementation inhibited oocyst shedding and improved the growth performance as well as the intestinal health of broilers infected with Eimeria, which was closely related to the regulation of gut microbiota. Moreover, the effects of P8 may be more effective in the early infection of coccidia.

scholarly journals Protective Effect of Lactobacillus Plantarum P8 on the Growth Performance, Intestinal Health and Microbiota in Eimeria-infected Broilers

2021 ◽  
Author(s):  
Yang Wang ◽  
Xiaoguo Lv ◽  
Xuemin Li ◽  
Jinshan Zhao ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Gut Microbiota ◽  
Growth Performance ◽  
Lactobacillus Plantarum ◽  
Control Diet ◽  
Intestinal Barrier ◽  
Intestinal Morphology ◽  
Intestinal Health ◽  
Commercial Broiler ◽  
High Level

Abstract Background: Coccidiosis is one of the major parasitic diseases in the commercial broiler industry. Probiotics can protect poultry against Eimeria infection. However, the mechanisms are not fully known. Therefore, Lactobacillus plantarum P8 (P8) was used to investigate its anti-coccidial property and mechanism.Methods: Five hundred broilers were allocated to five treatments: control diet (NC), control diet + Eimeria infection (IC), control diet containing 1 × 107 cfu/g P8 + Eimeria infection (P8L), control diet containing 1 × 108 cfu/g P8 + Eimeria infection (P8H), and control diet + Eimeria infection + Diclazuril (DIC). At day 14, all treatments except NC were inoculated with sporulated oocysts. Results: Eimeria infection increased the mortality and oocysts shedding, and declined the growth performance as well as the intestinal barrier in Eimeria-treated broilers. On the contrary, dietary supplementation of low level P8, high level P8 and DIC decreased the mortality and oocysts shedding, but improved the growth performance and intestinal barrier. The impaired intestinal morphology in the IC group was also improved by P8H and DIC treatments. Besides, the elevated oxidative stress and pro-inflammation in Eimeria-infected broilers were reduced by P8L, P8H and DIC treatments. Metagenomic analysis indicated P8 altered the structure of the gut microbiota, and the alteration was more obvious at day 21 than day 42. Notably, IC also increased the abundances of Eimeriidae, Eimeria and Eimeria tenella at day 21, while P8L and DIC decreased the abundances. Correlation analysis revealed that bacteria in Eimeria-treated broilers positively correlated with the intestinal permeability, oxidative stress and inflammation, while bacteria in broilers receiving P8L and DIC negatively correlated with the aforementioned pathological indices. Functional prediction demonstrated that the metagenomes of Eimeria-infected broilers were involved in several diseases. But the metagenomes of P8L-treated broilers were involved in energy metabolism and replication repair. Conclusions: Dietary P8 supplementation inhibited oocyst shedding and improved the growth performance as well as the intestinal health of broilers infected with Eimeria, which was closely related to the regulation of gut microbiota. Moreover, the effects of P8 may be more effective in the early infection of coccidia.

scholarly journals 77 The effect of naturally occurring levels of multiple mycotoxins on growth performance and carcass parameters of grow-finish pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 54-55
Author(s):  
Leigh Ruckman ◽  
Stacie Gould ◽  
John Patience
Keyword(s):  
Growth Performance ◽  
Economic Impact ◽  
Environmental Conditions ◽  
Fixed Effects ◽  
Control Diet ◽  
Naturally Occurring ◽  
Carcass Parameters ◽  
Low Levels ◽  
Dietary Treatments ◽  
Over Time

Abstract Mycotoxins may not be an issue every year, but the proper environmental conditions can cause a spike in contaminated grains and cause severe economic impact on pork producers. The objective of this study was to determine the effect of naturally occurring infections of deoxynivalenol, zearalenone and fumonisins (DZF) on growth performance and carcass parameters in grow/finish pigs. One hundred pigs (BW 34.0 ± 0.9 kg; L337 × Camborough, PIC, Hendersonville, TN) were randomly assigned to 1 of 2 dietary treatments with 10 split-sex pens/treatment. The control diet (CTL) contained low levels of DZF and the CTL+DFZ diet contained high levels of DZF. Diets were fed in 4 phases over the 126-d experiment period. The CTL diet contained 1.6, 1.6, 1.8 and 1.2 mg deoxynivalenol/kg and CTL+DZF contained 9.2, 6.9, 5.8 and 3.8 mg deoxynivalenol/kg in the 4 diet phases, respectively. The CTL contained 0.30, 0.32, 0.51 and 0.32 mg zearalenone/kg and 0.7, 0.8, 0.8 and 0.9 mg total fumonisins/kg; CTL+DFZ contained 0.59, 0.72, 0.86 and 0.57 mg zearalenone/kg and 1.0, 1.1, 1.2 and 0.9 mg total fumonisins/kg for phases one through four, respectively. Data were analyzed using PROC MIXED of SAS (9.4) with treatment, sex, and their interaction as fixed effects. Compared to CTL, feeding CTL+DFZ decreased final BW (130.3 vs 120.5 kg; P&lt; 0.001), ADG (0.95 vs 0.79 kg/d; P&lt; 0.001), ADFI (2.73 vs 2.49 kg/d; P=0.016), and G:F (0.35 vs 0.32; P=0.043). Feeding CTL+DFZ decreased HCW (92.3 vs 89.4 kg; P=0.024) and increased dressing percentage (70.9 vs 74.3%; P=0.009) and tended to reduce loin depth (7.0 vs 6.8 cm; P=0.057) compared to CTL. Diet did not affect backfat depth or lean percentage (P &gt;0.10). In conclusion, diets naturally contaminated with multiple mycotoxins reduced growth performance and adversely affected carcass parameters; pigs did not adapt over time to the mycotoxins.

187 Effects of Oligosaccharide-based Polymer on Growth Performance, Diarrhea, and Fecal β-hemolytic Coliforms in Weanling Pigs Experimentally Infected with a Pathogenic E. coli

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 90-90
Author(s):  
Kwangwook Kim ◽  
Yijie He ◽  
Cynthia Jinno ◽  
Seijoo Yang ◽  
Xunde Li ◽  
...  
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Basal Diet ◽  
Watery Diarrhea ◽  
Experimental Unit ◽  
Post Inoculation ◽  
Weaned Pigs ◽  
E Coli ◽  
Diet Control ◽  
Dietary Treatments

Abstract The objective of this experiment was to investigate dietary supplementation of oligosaccharide-based polymer on growth performance, diarrhea, and fecal β-hemolytic coliforms of weaned pigs experimentally infected with a pathogenic F18 Escherichia coli (E. coli). Forty-eight pigs (7.23 ± 1.11 kg BW) were individually housed in disease containment rooms and randomly allotted to one of four treatments with 12 replicate pigs per treatment. The four dietary treatments were a nursery basal diet (control), and 3 additional diets supplemented with 50 mg/kg Mecadox (AGP), 10 or 20 mg/kg of oligosaccharide-based polymer. The experiment lasted 18 d [7 d before and 11 d after the first inoculation (d 0)]. The doses of F18 E. coli inoculum were 1010 cfu/3 mL oral dose daily for 3 days. Growth performance was measured on d -7 to 0 before inoculation, and d 0 to 5 and 5 to 11 post-inoculation (PI). Diarrhea score (DS; 1, normal, to 5, watery diarrhea) was daily recorded for each pig. Fecal samples were collected on d 2, 5, 8, and 11 PI to test the percentage of β-hemolytic coliforms in total coliforms. All data were analyzed by ANOVA using the PROC MIXED of SAS with pig as the experimental unit. Inclusion of oligosaccharide-based polymer linearly increased (P &lt; 0.05) ADFI on d 0 to 5 PI, and feed efficiency on d 0 to 5 PI and d 5 to 11 PI (P = 0.07), compared with the control. Supplementation of AGP or oligosaccharide-based polymer reduced (P &lt; 0.01) frequency of diarrhea of pigs from d 0 to 11 PI. No differences were observed in overall growth performance and percentage of fecal β-hemolytic coliforms on d 8 PI among pigs in AGP and oligosaccharide-based polymer treatments. In conclusion, supplementation of oligosaccharide-based polymer enhanced feed efficiency and reduced diarrhea of weaned pigs infected with a pathogenic E. coli.

Effects of graded levels of xylo-oligosaccharides on growth performance, serum parameters, intestinal morphology and intestinal barrier function in weaned piglets

2021 ◽  
Author(s):  
Yuxia Chen ◽  
Yining Xie ◽  
Ruqing Zhong ◽  
Hui Han ◽  
Lei Liu ◽  
...  
Keyword(s):  
Growth Performance ◽  
Intestinal Barrier ◽  
Intestinal Morphology ◽  
Intestinal Barrier Function ◽  
Weaned Piglets ◽  
Villus Height ◽  
Expression Levels ◽  
Small Intestinal ◽  
Dietary Treatments ◽  
Mrna Expression Levels

Abstract The objective of this study was to investigate the effects of xylo-oligosaccharides (XOS) supplementation on growth performance, serum parameters, small intestinal morphology, intestinal mucosal integrity, and immune function in weaned piglets. A total of 240 weaned piglets with an average body weight (BW) of 8.82 ± 0.05 kg (28 d of age) were assigned randomly to 4 dietary treatments in a 28-d trial, including a control diet (CON), 3 diets with XOS supplementation at the concentration of 100, 500 and 1000 mg/kg (XOS100, XOS500, and XOS1000). There were 4 replicates per treatment with 15 pigs per pen. From d 1 to 14, there were no differences (P &gt; 0.05) in average daily gain (ADG), average daily feed intake (ADFI), and gain to feed ratio (G:F) during the different treatments. The different doses of XOS showed a quadratic effect on BW on d 28, ADG and G:F d 1-28 of piglets (P &lt; 0.05). From d 15 to 28, ADG of pigs fed the XOS500 diet was higher (P &lt; 0.05) than pigs fed the CON diet. During the overall period (d 1 to 28), pigs fed the XOS500 diet had a higher BW, ADG and G:F than pigs fed the CON diet (P &lt; 0.05). In addition, compared with the CON group, the XOS500 group had significantly higher serum total antioxidant capacity (T-AOC), total superoxide dismutase (T-SOD) and catalase (CAT) levels and lower malondialdehyde (MDA) levels on d 14 and 28 (P &lt; 0.05). The serum immunoglobulin G (IgG) concentration in the XOS500 group was also significantly higher compared with the CON group on d 14 and 28 (P &lt;0.05). However, serum immunoglobulin A (IgA) and immunoglobulin M (IgM) were not affected by the dietary treatments. Supplementation of XOS500 to the feed significantly increased the villus height (VH) and villus height to crypt depth ratio (VH:CD) in the jejunum and ileum in comparison with the CON and XOS1000 group. Moreover, the XOS500 group significantly elevated the expression levels of Occludin and zonula occludens protein-1 (ZO-1) in the ileum compared to the CON group. The ileal interleukin (IL)-1β, IL-8 and interferon (IFN)-γ mRNA expression levels in the XOS100 and XOS500 group were markedly lower than in the CON group. In contrast, the ileal IL-10 mRNA expression levels were remarkably higher in the XOS500 than CON group. In conclusion, xylo-oligosaccharides have a beneficial effect on growth performance by improving serum antioxidant defense system, serum IgG, small intestinal structure and intestinal barrier function in weaned piglets.

scholarly journals Effect of extruded full-fat soybeans on performance, amino acids digestibility, trypsin activity, and intestinal morphology in broilers

2013 ◽  
Vol 58 (No. 10) ◽  
pp. 470-478 ◽  
Author(s):  
M. Foltyn ◽  
V. Rada ◽  
M. Lichovníková ◽  
I. Šafařík ◽  
A. Lohniský ◽  
...  
Keyword(s):  
Amino Acids ◽  
Body Weight ◽  
Growth Performance ◽  
Intestinal Morphology ◽  
Trypsin Activity ◽  
Villus Height ◽  
Isoleucine Leucine ◽  
Final Body Weight ◽  
Dietary Treatments ◽  
Different Levels

The influence of different levels of extruded full-fat soybean (EFFSB) in the diet on growth performance, apparent ileal amino acids digestibility (AIAAD), intestinal morphology, and trypsin activity in digesta of broilers was determined. In the first experiment, two-hundred sixty ROSS 308 male chickens were used to investigate the effect of EFFSB on growth performance, intestinal morphology, and trypsin activity in the digesta and AIAAD. Five dietary treatments were used, containing 0, 40, 80, 120, and 160 g/kg of EFFSB. The experiment lasted from day 10 till day 38 of age. The inclusion of EFFSB at the level of 160 g/kg in the diet significantly (P &lt; 0.05) decreased final body weight (2443 g in 0 group vs. 2093 in 160 group) and worsened feed efficiency. AIAAD was lower when diet contained more than 40 g/kg EFFSB. But at the level of 160 g/kg AIAAD increased in several amino acids (threonine, isoleucine, leucine, histidine). Trypsin activity increased with increasing EFFSB in the diets. There were no significant (P &gt; 0.05) differences in AIAAD between groups 80, 120, and 160. Villus height (groups 0: 966.2; 4: 852.1; 8: 792.6; 12: 836.3; 16: 926.7 &micro;m) and crypt depth (groups&nbsp;0: 160.1; 4: 134.8; 8: 122.9; 12: 129.5; 16: 134.6 &micro;m) of ileum decreased with inclusion of EFFSB in the diet, but villi/crypt ratio increased. In the second experiment, male chickens ROSS 308 were divided into 4&nbsp;groups with 2 replicates per 100 chicks each. The groups were fed 0, 40, 80, and 120 g/kg of EFFSB. The experiment lasted from day 10 till day 38 of age. Final body weight (2594 g in 0 group vs. 2624 g in 120 group) was not significantly (P &gt; 0.05) affected by the diet. The study showed that EFFSB at the level of 120 g/kg in grower broiler diet had no adverse effect on performance. &nbsp;

scholarly journals Effects of amino acid biomass or feed-grade amino acids on growth performance of growing swine and poultry12

2019 ◽  
Vol 4 (1) ◽  
pp. 49-58
Author(s):  
Madie R Wensley ◽  
Jason C Woodworth ◽  
Joel M Derouchey ◽  
Steve S Dritz ◽  
Mike D Tokach ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Growth Performance ◽  
Control Diet ◽  
Positive Control ◽  
Negative Control ◽  
Suitable Alternative ◽  
Poultry Diets ◽  
Dietary Treatments

Abstract Three experiments were conducted to determine the effect of three fermented amino acids (AA) with their respective biomass compared to crystalline AA on the growth performance of swine and poultry. In experiment 1, 315 barrows (DNA 200 × 400, initially 11.3 ± 0.69 kg) were allotted to 1 of 4 dietary treatments with 5 pigs per pen and 15 or 16 pens per treatment. Dietary treatments included a negative control (16% standardized ileal digestible [SID] Tryptophan:lysine [Trp:Lys] ratio), positive control (21% SID Trp:Lys ratio from crystalline Trp), or diets containing Trp with biomass to provide 21 or 23.5% SID Trp:Lys ratios, respectively. Pigs fed the positive control or low Trp with biomass diet had increased (P &lt; 0.05) ADG compared to pigs fed the negative control diet, with pigs fed the high Trp with biomass diet intermediate. Pigs fed the low Trp with biomass diet had increased (P &lt; 0.05) G:F compared to the negative control diet, with others intermediate. In experiment 2, 1,320 1-d-old male broilers (Cobb 500, initially 45.2 g) were allotted to one of four dietary treatments with 33 birds per pen and 10 pens per treatment. Dietary treatments included a negative control (58/58% Threonine:lysine [Thr:Lys] ratio), positive control (65/66% Thr:Lys ratio from crystalline Thr), or diets containing Thr with biomass to provide 65/66 or 69/70% Thr:Lys ratios in starter and grower diets, respectively. Broilers fed the positive control or Thr with biomass diets had increased (P &lt; 0.05) ADG compared to broilers fed the negative control diet. Broilers fed the positive control or the low Thr with biomass diet had increased (P &lt; 0.05) G:F compared to the negative control and high Thr with biomass treatments. In experiment 3, 2,100 one-day-old male broilers (Cobb 500, initially 39.4 g) were allotted to one of four dietary treatments with 35 birds per pen and 15 pens per treatment. Dietary treatments included a negative control (59/63% Valine:lysine [Val:Lys] ratio), positive control (75/76% Val:Lys ratio from crystalline Val), or diets containing Val with biomass to provide 75/76 or 84/83% Val:Lys ratios in starter and grower diets, respectively. Broilers fed the positive control or Val with biomass diets had increased (P &lt; 0.05) ADG, ADFI, and G:F compared to those fed the negative control diet. In conclusion, Trp, Thr, or Val with their respective biomass appear to be equally bioavailable and a suitable alternative to crystalline AA in swine and poultry diets.

scholarly journals Inclusion of yeast-derived protein in weanling diet improves growth performance, intestinal health, and anti-oxidative capability of piglets 

2014 ◽  
Vol 59 (No. 7) ◽  
pp. 327-336 ◽  
Author(s):  
L. Hu ◽  
L. Che ◽  
G. Su ◽  
Y. Xuan ◽  
G. Luo ◽  
...  
Keyword(s):  
Innate Immunity ◽  
Growth Performance ◽  
Control Diet ◽  
Intestinal Health ◽  
Feed Conversion ◽  
Daily Growth ◽  
Copy Numbers ◽  
Weanling Piglets ◽  
Weaning Piglets ◽  
Total Bacteria

The effects of yeast-derived protein (YP) on growth performance, intestinal health, and oxidative status of weanling piglets were investigated. A total of 80 weaned piglets (PIC 327 &times; 1050, 26 &plusmn; 2 days old, 6.20&nbsp;&plusmn; 0.10 kg) were randomly allocated into 2 groups, 5 pens per each group and 8 piglets per each pen, receiving control diet and diet with inclusion of 4% YP at the expenses of fish meal (YP diet) for a period of 28 days. The diets were formulated to contain similar nutrient levels. Compared with control, piglets fed YP diet had markedly higher overall average daily growth (+14%, P &lt; 0.05) and lower final feed conversion ratio (&minus;8%, P &lt; 0.01). Concentrations of serum serine, cystathionine, histidine, hydroxyproline, and urea were decreased in piglets fed YP diet (P &lt; 0.05), whereas alanine and aspartate were increased (P &lt; 0.01). Moreover, serum antioxidant enzyme activity (glutathione peroxidase) was markedly increased (+19%, P &lt; 0.01) in piglets fed YP diet relative to piglets fed control diet. In addition, feeding YP diet considerably (P &lt; 0.05) increased the copy numbers of lactobacilli and total bacteria in the colon of piglets at the end of the experiment. Furthermore, the mRNA abundance of innate immunity-related genes (TLR4, NF-&kappa;B1, and IL-6) was increased (P &lt; 0.06) in the ileum of piglets fed YP diet. Collectively, results of this study indicated that diet with the inclusion of YP improved growth performance and partially enhanced anti-oxidative capability as well as intestinal innate immunity of weaning piglets.

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