Growth performance, jejunum morphology and mucin-2 gene expression of broiler Japanese quails fed low-protein diets supplemented with threonine

Abstract Moderately low protein (MLP) diets can help decrease nutrient excretion from the swine production. However, MLP diets negatively impact growth performance. We hypothesized that supplementing MLP diets with phytogenics may reduce the negative effects of these diets on growth. The objective of this study was to investigate the effect of a phytogenic water additive (PWA; Herbanimal®) on growth performance, blood metabolite and gene expression of amino acids transporters in pigs fed with MLP diets. Forty-eight weaned barrows were allotted to six dietary treatments (n = 8) for 4 weeks: >CON-NS: standard protein diet-no PWA; CON-LS: standard protein diet-low PWA dose (4 ml/L); CON-HS: standard protein diet-high PWA dose (8 ml/L); LP-NS: low protein diet-no PWA; LP-LS: low protein diet-low PWA dose (4 ml/L); LP-HS: low protein diet- high PWA dose (8 ml/L). Feed intake and body weight were recorded daily and weekly, respectively. At week 4, blood and tissue samples were collected and analyzed for metabolites using a chemistry analyzer and amino acid transporters using qPCR, respectively. The data were analyzed by univariate GLM (SPSS®) and the means were separated using paired Student’s t-test corrected by Benjamini-Hochberg. Pigs fed CON-HS improved the average daily gain and serum calcium and phosphorus concentrations compared to CON-NS. Pigs fed LP-LS had higher serum phosphorus and blood urea nitrogen compared to the pigs fed with LP-NS. The mRNA abundance of SLC7A11 in the jejunum was lower in CON-LS and CON-HS compared to CON-NS. Additionally, mRNA abundance of SLC6A19 in the jejunum of pigs fed with LP-LS was higher compared to LP-NS and lower in CON-HS relative to pigs fed with CON-LS. In conclusion, PWA improved the growth performance of pigs fed standard protein diets but not low protein diets. Further, the PWA improved the concentrations of blood calcium and phosphorous in pigs fed MLP diets. Funding: Agrivida and Animal Health and Production and Animal Products: Improved Nutritional Performance, Growth, and Lactation of Animals from the USDA-NIFA.

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Effect of feed level and supplementary rumen protected lysine and methionine on growth performance, rumen fermentation, blood metabolites and nitrogen balance in growing Tan lambs fed low protein diets

Animal Feed Science and Technology ◽

10.1016/j.anifeedsci.2021.115024 ◽

2021 ◽

pp. 115024

Author(s):

Hu Liu ◽

Guo Yang ◽

Allan Degen ◽

Kaixi Ji ◽

Dan Jiao ◽

...

Keyword(s):

Growth Performance ◽

Nitrogen Balance ◽

Rumen Fermentation ◽

Blood Metabolites ◽

Low Protein ◽

Protein Diets

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214 Dietary Supplementation with a Combination of Valine and Isoleucine Annuls the Negative Effects of Very Low Protein Diets on Growth and Gut Development of Young Pigs

Journal of Animal Science ◽

10.1093/jas/skab235.205 ◽

2021 ◽

Vol 99 (Supplement_3) ◽

pp. 112-113

Author(s):

Mohammad Habibi ◽

Parniyan Goodarzi ◽

Cedrick N N Shili ◽

Julia Sutton ◽

Caitlyn Wileman ◽

...

Keyword(s):

Thermal Radiation ◽

Growth Performance ◽

Nitrogen Excretion ◽

Gut Development ◽

Negative Effects ◽

Final Body Weight ◽

Low Protein ◽

Feed Cost ◽

Young Pigs ◽

Protein Diets

Abstract Increased feed cost, post-weaning diarrhea, and nitrogen excretion are challenging the modern swine industry. Very low-protein (LP) diets (>4% units reduced protein) may reduce feed cost, diarrhea and nitrogen excretion; however, these diets impair growth performance of pigs despite supplementation of limiting amino acids (i.e., lysine, threonine, methionine and tryptophan). The objective of this study was to investigate the effect of valine, isoleucine and combination of both supplemented to VLP diet on growth, thermal radiation, and gut development in young pigs. Forty three-week-old weaned barrows were weighed (6.75 ± 0.14 kg) and randomly assigned to five groups (8 pigs/group) including: 1) standard diet or positive control (PC), 2) LP diet, 3) LP + valine (LPV), 4) LP + isoleucine (LPI) and 5) LP + both valine and isoleucine (LPVI) for five weeks. Daily feed intake and weekly growth characteristics were measured and weekly thermal images were captured. All pigs were euthanized at week 5 and tissue samples collected. All data were analyzed with univariate GLM followed by Tukey’s post-hoc test (SPSS®). Compared to PC, final body weight, average daily gain, average daily protein intake and gain:feed ratio were reduced in LP group, but feeding pigs with LPVI partially or completely recovered these parameters. Pigs fed with LPVI had higher thermal radiation than those fed with PC, LP, and LPI on days 28 and 35 of study and had a greater the area under the curve for thermal radiation than LP and LPI. Duodenal villus width and crypt depth, and ileal villus height were decreased in LP relative to PC, but LPVI either partially or fully recovered these measurements. In conclusion, supplementing a combination of valine and isoleucine recovered the negative effects of very low-protein diets on growth performance and gut development, but increased the thermal radiation in weaned pigs.

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Growth performance, duodenal morphology and the caecal microbial population in female broiler chickens fed glycine-fortified low protein diets under heat stress conditions

British Poultry Science ◽

10.1080/00071668.2018.1440377 ◽

2018 ◽

Vol 59 (3) ◽

pp. 340-348 ◽

Cited By ~ 13

Author(s):

E. A. Awad ◽

Z. Idrus ◽

A. Soleimani Farjam ◽

A. U. Bello ◽

M. F. Jahromi

Keyword(s):

Heat Stress ◽

Growth Performance ◽

Broiler Chickens ◽

Microbial Population ◽

Stress Conditions ◽

Low Protein ◽

Protein Diets

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IMPACT OF DIETARY SUPPLEMENTATION OF PREBIOTICS ON THE GROWTH PERFORMANCE AND IMMUNITY IN BROILERS FED LOW PROTEIN DIETS

Assiut Veterinary Medical Journal ◽

10.21608/avmj.2021.100505.1027 ◽

2021 ◽

Vol 0 (0) ◽

pp. 103-119

Author(s):

NAGLAA S.K. IBRAHIM ◽

ABDEL-BASET N.S. AHMED ◽

GHADA S.E. ABDEL-RAHEEM

Keyword(s):

Growth Performance ◽

Dietary Supplementation ◽

Low Protein ◽

Protein Diets

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Effects of supplementing taurine in all‐plant protein diets on growth performance, serum parameters, and cholesterol 7α‐hydroxylase gene expression in black sea bream, Acanthopagrus schlegelii

Journal of the World Aquaculture Society ◽

10.1111/jwas.12611 ◽

2019 ◽

Vol 51 (4) ◽

pp. 990-1001 ◽

Cited By ~ 4

Author(s):

Shengli Tong ◽

Lei Wang ◽

Hameeda Kalhoro ◽

Josie A. Volatiana ◽

Qingjun Shao

Keyword(s):

Gene Expression ◽

Growth Performance ◽

Black Sea ◽

Plant Protein ◽

Sea Bream ◽

Serum Parameters ◽

Acanthopagrus Schlegelii ◽

Hydroxylase Gene ◽

Protein Diets

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Effect of antibiotic-free, low-protein diets with specific amino acid compositions on growth and intestinal flora in weaned pigs

Food & Function ◽

10.1039/c9fo02724f ◽

2020 ◽

Vol 11 (1) ◽

pp. 493-507 ◽

Cited By ~ 2

Author(s):

Junyan Zhou ◽

Yuming Wang ◽

Xiangzhou Zeng ◽

Tao Zhang ◽

Peili Li ◽

...

Keyword(s):

Amino Acid ◽

Growth Performance ◽

Intestinal Flora ◽

Amino Acid Profile ◽

Gut Health ◽

Weaned Pigs ◽

Specific Amino Acid ◽

Amino Acid Compositions ◽

Low Protein ◽

Protein Diets

This study investigated the effects of modulation of the amino acid profile on growth performance and gut health in weaned pigs fed an antibiotic-free, low-protein diet.

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