scholarly journals A comparison of the release of phosphorus by a phytase enzyme in pigs fed diets deficient or adequate in phosphorus content

2021 ◽  
Vol 99 (4) ◽  
Author(s):  
Kristin M Olsen ◽  
Stacie A Gould ◽  
John F Patience
Keyword(s):  
Body Weight ◽  
Urinary Excretion ◽  
Fixed Effects ◽  
Dry Matter ◽  
Phosphorus Content ◽  
Experimental Unit ◽  
P Release ◽  
Gross Energy ◽  
Quadratic Effects ◽  
Dietary Treatments

Abstract Previous research indicated that phytase may release less phosphorus (P) from phytate when it is evaluated using diets with P levels above requirement as compared with diets below requirement. The objectives of this experiment were to further test the hypothesis that the P release values determined for phytase are higher when pigs are fed diets that are deficient (DE) in P compared with when they are fed diets that are adequate (AD) in P, and that phytase will increase the digestibility of dry matter (DM), gross energy (GE), nitrogen (N), and calcium (Ca) independent of dietary P status. Twenty-four barrows (body weight: 23.2 ± 1.8 kg) were randomly assigned to one of eight dietary treatments and housed in individual pens for 21 d and then moved to metabolism crates for 9 d, with the collection of urine and feces occurring on the final 5 d. A basal corn–soybean meal diet (P-AD) was formulated at 0.36% standardized total tract digestible (STTD) P and total calcium:STTD P (Ca:STTD P) of 2:1. A P-DE diet was also formulated to maintain a constant Ca:STTD P of 2:1 in both basal diets. Phytase was added to AD and DE diets at 350, 600, 1,000 phytase units (FYT)/kg. Pig was the experimental unit; diet (P-AD or P-DE), phytase level, and replicate were fixed effects. Orthogonal polynomial contrasts were used to test linear and quadratic effects of phytase within P-AD and P-DE diets. Phytase improved apparent total tract digestibility (ATTD) and STTD of P in both P-AD (linear P < 0.001) and P-DE diets (quadratic P < 0.001). Estimates for STTD P release were 0.07%, 0.09%, and 0.09% for 350, 600, and 1,000 phytase units (FYT)/kg in P-DE diets, and 0.02%, 0.03%, and 0.05% in P-AD diets, respectively. In P-DE diets, phytase improved absorption and retention of P and increased urinary excretion of P (quadratic P < 0.001). In P-AD diets, phytase improved absorption of P (linear P = 0.066), tended to improve retention (linear P = 0.066), and increased urinary excretion of P (quadratic P = 0.021). Phytase improved ATTD of Ca in P-DE diets (quadratic P = 0.002) but not in P-AD diets (P > 0.1). In conclusion, the release of P by phytase is lower in diets that are AD in P than those which are DE. Phytase increased the availability of Ca only in the diets DE in P. Finally, phytase increased the ATTD of DM and tended to increase the ATTD of energy, independent of dietary P status.

scholarly journals Effects of graded concentrations of supplemental lead on lead concentrations in tissues of pigs and prediction equations for estimating dietary lead intake

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3936 ◽  
Author(s):  
Kondreddy Eswar Reddy ◽  
Kyu Ree Park ◽  
Sung Dae Lee ◽  
Ji-Hyock Yoo ◽  
Ah Reum Son ◽  
...  
Keyword(s):  
Body Weight ◽  
Soft Tissues ◽  
Prediction Equations ◽  
Independent Variable ◽  
Positive Correlations ◽  
Quadratic Effects ◽  
Highly Correlated ◽  
Dietary Treatments ◽  
Lead Intake ◽  
Pb Concentration

The objectives of this experiment were to determine the effects of graded dietary lead (Pb) concentrations on body weight and Pb concentrations in blood, hair, soft tissues, and urine from pigs and to generate equations for estimating daily Pb intake. Sixteen barrows with initial body weight 36.3 kg (standard deviation = 2.3) were allotted to four dietary treatments that consisted of graded supplemental Pb concentrations (0, 10, 25, and 250 mg/kg of diet). Daily feed allowances for each pig were 1 kg for first two weeks and 2 kg for last two weeks. The hair and blood of pigs were collected on d 14 and 28. At the end of experiment, the pigs were euthanized, and the liver, kidneys, muscle, and urine samples were collected. The prediction equations for estimating daily Pb intake of pigs were generated using Pb concentration of blood, hair, tissues, or urine as an independent variable. The Pb concentrations in the blood, hair, liver, kidneys, muscle, and urine linearly increased (P < 0.01) with increasing dietary Pb concentrations. There were quadratic effects (P < 0.05) of increasing dietary Pb concentration on Pb concentrations in the blood, hair, and muscle. There were highly positive correlations between dietary Pb concentration and Pb concentrations in the blood, hair, liver, kidneys, muscle, and urine (r > 0.83;P < 0.01). The equations were significant (P < 0.01) and showed highr2(>0.83), except the equation using Pb concentration in the muscle as an independent variable. In conclusion, the dietary Pb concentration was highly correlated with Pb concentrations in the blood, hair, soft tissues, and urine of pigs. The total dietary Pb intake can be estimated from the Pb concentrations in the blood, hair, soft tissues, or urine for pigs.

scholarly journals Effect of Dietary Modified-Banana-Tuber Meal Substituting Dietary Corn on Growth Performance, Carcass Trait and Dietary-Nutrients Digestibility of Coloured-Feather Hybrid Duck

2021 ◽  
Vol 26 (1) ◽  
pp. 39
Author(s):  
Osfar Sjofjan ◽  
Danung Nur Adli ◽  
Muhammad Halim Natsir ◽  
Yuli Frita Nuningtyas ◽  
Tika Septi Wardani ◽  
...  
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Dry Matter ◽  
Negative Control ◽  
Carcass Trait ◽  
Dietary Nutrients ◽  
Online Edition ◽  
Soyabean Meal ◽  
Dietary Treatments ◽  
Nutrients Digestibility

<p class="abstrak2">In this experiment, we investigate the effect of modified banana tuber meal (M-BTM) to substitute dietary maize in growing-finisher colored-feathered hybrid duck. One hundred and ninety six hybrid ducks (Pekin x Khaki Campbell) with 421.31 ± 0.183g body weight (BW) were allotted to 5 dietary treatments with 9 ducks (unsexed) per pen and 4 replications per treatment. These dietary treatments were: NC (negative control; maize-soyabean-meal based diet), BTM25 (25% maize was replaced by M-BTM-), BTM50 (50% maize was replaced by M-BTM), BTM75 (75% maize was replaced by M-BTM), and BTM100 (100% maize was replaced by M-BTM). The experimental design applied using completely randomize design (CRD). Data of this experiment were statistically analysed by one-way-analysis-of-variance of SAS University version 4.0 red hat (64-bit) University Online Edition. Result demonstrated that M-BTM improved significantly (p&lt; 0.05) digestibility of dry matter and crude protein. It is concluded that M-BTM enhanced apparently growth performaces and digestibility parameters of colored-feathered hybrid duck (Pekin x Khaki Campbell).</p>

Effects of dietary Korean garlic extract aged by Leuconostoc mesenteroides KCCM35046 on growth performance, digestibility, blood profiles, gas emissions, and microbiota in weanling pigs

2020 ◽  
Vol 100 (3) ◽  
pp. 462-469
Author(s):  
J.H. Cho ◽  
S.D. Liu ◽  
I.H. Kim
Keyword(s):  
Growth Performance ◽  
Average Daily Gain ◽  
Dietary Supplementation ◽  
Experimental Unit ◽  
Feed Conversion ◽  
Weanling Pigs ◽  
Gas Emissions ◽  
E Coli ◽  
Gross Energy ◽  
Dietary Treatments

A total of 150 crossbred pigs [(Duroc × Yorkshire) × Landrace; body weight (BW) = 5.74 ± 1.15 kg; weaned at day 21 after birth] were assigned to one of five dietary treatments (six pens per treatment and five pigs per pen) by BW and sex (two barrows and three gilts) for a 6 wk experiment. The pen was considered the experimental unit in the statistical model. Treatments were corn–soybean meal diets supplemented with 0.0033% tiamulin as well as 0%, 0.05%, 0.10%, or 0.20% fermented garlic (FG). The average daily gain, average daily feed intake (ADFI), and feed conversion ratio were linearly (p < 0.05) increased by FG inclusion during days 21–42 and days 0–42. Dietary supplementation of FG linearly increased (p < 0.05) the coefficient of apparent total tract digestibility of dry matter, nitrogen, and gross energy as well as blood immunoglobulin G concentration during week 6. The fecal ammonia (NH3), total mercaptan emissions, and Escherichia coli counts were linearly (p < 0.05) reduced by FG in the diet. Dietary supplementation of FG increased (p < 0.05) ADFI during days 21–42 and days 0–42 and reduced (p < 0.05) fecal NH3 emissions compared with pigs fed tiamulin. In conclusion, the results indicate that FG can enhance growth performance and digestibility, and reduce fecal E. coli counts as well as fecal gas emissions in weanling pigs.

scholarly journals 389 Effects of energy source on performance and carcass characteristics in hair lambs finished in feedlot

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 155-156
Author(s):  
Roman Castañeda-Serrano ◽  
Fabian Gutierrez-Oviedo ◽  
Marcela Diaz-Cristancho ◽  
Jairo Pardo-Guzman ◽  
Paula Lozano-Morales ◽  
...  
Keyword(s):  
Energy Source ◽  
Body Weight ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Palm Kernel ◽  
Carcass Characteristics ◽  
Dry Matter Intake ◽  
Feeding Trial ◽  
The Mean ◽  
Dietary Treatments

Abstract The objective of this study was to evaluate the effects of different energy sources on performance, and carcass characteristics in hair lambs finished in feedlots. Twenty-eight hair lambs with an initial body weight (BW) 20.8 ± 3.01, were randomly assigned to one of four dietary treatments included with seven lambs per treatment. The dietary treatments included an energy source included at 18% Dry matter: S. spectabilis flour (SF), palm kernel (PK), corn bran (CB) and rice bran (RB) in a diet based in corn silage, ground corn, soybean meal formulated to 13.0% PC and 2.6 Mcal/Kg of DM. The feeding trial was performed for 13 weeks. Water was allowed ad libitum. Animals were slaughtered after the feeding trial, and the carcasses were kept at 4°C for 24 h under Colombian standard guidelines. Data were analyzed by using the ANOVA procedure, SAS version 9.1 to perform a randomized complete experiment with four diets. For each studied variable, the mean and standard error of the mean (SEM) were calculated and differences between means were evaluated Using Tukey′s Test (P ≤ 0.05). Final body weight, hot carcass weight, cold carcass weight, hot dressing carcass (%), and cold dressing weight (%) were not different between the four treatments (P &gt; 0.05). Dry matter intake was superior to the S. spectabilis flour (P &lt; 0,001). Feed efficiency was higher in the CB and RB treatments (P &lt; 0,05). These results indicate that the inclusion of S. spectabilis and palm kernel could improve the dry matter intake and corn bran and rice bran the feed efficiency without effects on carcass characteristics

scholarly journals Effect of Cow Nutrition in the Far-off Period on Colostrum Quality and Immune Response of Calves

2012 ◽  
Vol 56 (2) ◽  
pp. 241-246
Author(s):  
Włodzimierz Nowak ◽  
Robert Mikuła ◽  
Małgorzata Kasprowicz-Potocka ◽  
Marta Ignatowicz ◽  
Andrzej Zachwieja ◽  
...  
Keyword(s):  
Immune Response ◽  
Body Weight ◽  
Dry Matter ◽  
Maternal Diet ◽  
Dry Matter Intake ◽  
Black And White ◽  
Holstein Friesian ◽  
Ad Libitum ◽  
Dietary Treatments

Abstract The aim of the study was to determine the effect of the limitation of energy intake by restrictive dry matter intake in the faroff part (from -56 d to -22 d) of dry period on the colostrum quality and the calf immunological status. Thirty-eight Polish Holstein- Friesian Black and White multiparous cows and their calves were randomly allotted to one of the two dietary treatments in the far-off period. In group ADLIB, diet was offered ad libitum (2.0% body weight), while in group REST, dry matter intake was restricted to 1.5% of body weight. Lowered feed intake in the far-off period did not have a statistically significant influence on the quality of colostrum. On the 3rd d of calves’ life, serum concentrations of immunoglobulins, albumins, globulins, total protein, and IGF-1 were not affected by treatments of dam in the far-off period. The concentrations of total Ig and G and A immunoglobulins of 21-day-old calves from cows fed ad libitum during the far-off period was found to be significantly lower compared to REST group. No significant differences in birth weight and growth rate during the first 21 d of life were found. Limiting maternal diet in far-off period did not affect negatively colostrum quality and calves` immune response during early stages of their life.

scholarly journals Evaluation of 2'fucosyllactose and Bifidobacterium longum subsp. infantis Supplementation to Formula on Growth, Organ Weights, and Intestinal Development of Piglets

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 789-789
Author(s):  
Marcia Monaco ◽  
Victoria Daniels ◽  
Mei Wang ◽  
Johanna Hirvonen ◽  
Henrik Max Jensen ◽  
...  
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Fixed Effects ◽  
Dry Matter ◽  
Bifidobacterium Longum ◽  
Milk Replacer ◽  
Intestinal Development ◽  
Organ Weights ◽  
Body Weights ◽  
The Impact

Abstract Objectives Human milk contains both prebiotic oligosaccharides and live bacteria, which are thought to bring health benefits to breastfed infants. Herein, we investigated the impact of formula supplementation with 2'-fucosyllactose (2'FL) and Bifidobacterium longum subsp. infantis (Bi-26) alone or in combination on growth, organ weights, and intestinal development of neonatal piglets. Methods Two-day-old intact male piglets (N = 53) were randomized to be fed a nutritionally-adequate milk replacer ad libitum without (CON) or with 1.0 g/L 2'FL (FL). Pigs were further stratified to receive either 12% glycerol solution alone or Bi-26 (109 CFU) in glycerol orally once daily (BI and FLBI). Body weights and food intake were monitored from postnatal day (PND) 2 to 33/34. On PND 34/35, animals were euthanized, intestine, liver and brain weights were assessed, and intestinal samples were collected for morphological analyses and disaccharidase activity. Dry matter of intestinal contents was also measured. Growth and food intake were analyzed as a 3-way, repeated-measures ANOVA with fixed effects of prebiotic, probiotic, and day, whereas all other variables were analyzed by a 2-way ANOVA with fixed effects of prebiotic and probiotic. Level of significance was set at P ≤ 0.05 and trends are reported at 0.05 &gt; P &lt; 0.1. Results All diets were well tolerated and food intake did not differ among the treatment groups. Daily body weights were affected by 2’FL, Bi26, and day, but no interaction was observed. However, there was a trend (p = 0.075) for greater body weight gain in CON vs. all other groups. No differences were observed for intestine, liver, or brain weight per kg body weight, jejunal or ileal lactase or sucrase activities, or fecal dry matter among the groups. Histomorphological outcomes in jejunum, ileum, and ascending colon were similar in all groups, except for a trend (p = 0.069) for larger ileal crypt volume in FL vs. CON piglets. Conclusions The addition of 2'FL and/or Bi-26 to milk replacer supported piglet growth with no detrimental effects on body and organ weights, or intestinal structure and function. Funding Sources DuPont Nutrition & Biosciences.

scholarly journals Effect of bis-glycinate bound zinc or zinc sulfate on zinc metabolism in growing lambs

2021 ◽  
Vol 99 (9) ◽  
Author(s):  
Erin L Deters ◽  
Allison J VanDerWal ◽  
Katherine R VanValin ◽  
Aubree M Beenken ◽  
Katie J Heiderscheit ◽  
...  
Keyword(s):  
Fixed Effects ◽  
Nitrogen Retention ◽  
Neutral Detergent Fiber ◽  
Experimental Unit ◽  
Longissimus Dorsi ◽  
Zinc Metabolism ◽  
Deficient Diet ◽  
Apparent Absorption ◽  
Zinc Retention ◽  
Dietary Treatments

Abstract To assess the efficacy of bis-glycinate bound Zn, 36 crossbred wethers (34 ± 2 kg) were sorted by body weight into three groups and stagger started on a Zn-deficient diet (18 mg Zn/kg dry matter [DM]; 22.5% neutral detergent fiber [NDF]) for 45 d prior to a 15-d metabolism period (10 d adaptation and 5 d collection). On day 46, lambs were randomly assigned to dietary treatments (four lambs treatment−1group−1): no supplemental Zn (CON) or 15 mg supplemental Zn/kg DM (ZINC) as Zn sulfate (ZS) or bis-glycinate (GLY; Plexomin Zn, Phytobiotics). Blood was collected from all lambs on days 1, 44, 56, and 61. Liver, jejunum, and longissimus dorsi samples were collected after euthanasia on day 61. Gene expression was determined via quantitative real-time polymerase chain reaction. Data were analyzed using ProcMixed of SAS (experimental unit = lamb; fixed effects = treatment, group, and breed) and contrast statements assessed the effects of supplemental Zn concentration (ZINC vs. CON) and source (GLY vs. ZS). After 15 d of Zn supplementation, plasma Zn concentrations were greater for ZINC vs. CON and GLY vs. ZS (P ≤ 0.01); tissue Zn concentrations were unaffected (P ≥ 0.27). Liver Cu concentrations were lesser for ZINC vs. CON (P = 0.03). Longissimus dorsi Mn concentrations were greater for ZINC vs. CON (P = 0.05) and tended to be lesser for GLY vs. ZS (P = 0.09). Digestibility of DM, organic matter (OM), and NDF was lesser for ZINC vs. CON (P ≤ 0.05); acid detergent fiber digestibility tended to be greater for GLY vs. ZS (P = 0.06). Nitrogen retention (g/d) tended to be greater for GLY vs. ZS (P = 0.10), and N apparent absorption was lesser for ZINC vs. CON (P = 0.02). Zinc intake, fecal output, retention, and apparent absorption were greater for ZINC vs. CON (P ≤ 0.01). Apparent absorption of Zn was −5.1%, 12.8%, and 15.0% for CON, ZS, and GLY, respectively. Nitrogen and Zn retention and apparent absorption were not correlated for CON (P ≥ 0.14) but were positively correlated for ZINC (retention: P = 0.02, r = 0.52; apparent absorption: P &lt; 0.01, r = 0.73). Intestinal expression of Zn transporter ZIP4 was lesser for ZINC vs. CON (P = 0.02). Liver expression of metallothionein-1 (MT1) tended to be greater for GLY vs. ZS (P = 0.07). Although Zn apparent absorption did not differ between sources (P = 0.71), differences in post-absorptive metabolism may be responsible for greater plasma Zn concentrations and liver MT1 expression for GLY-supplemented lambs, suggesting improved bioavailability of GLY relative to ZS.

scholarly journals PSII-2 The impact of essential oil supplementation on sow milk composition and fecal dry matter

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 229-229
Author(s):  
Shannon L Dierking ◽  
H J Monegue ◽  
Merlin D Lindemann
Keyword(s):  
Dry Matter ◽  
Milk Composition ◽  
Late Gestation ◽  
Gross Energy ◽  
Group 3 ◽  
Group 2 ◽  
The Individual ◽  
Dietary Treatments ◽  
The Impact ◽  
Group 1

Abstract The transition from gestation to lactation greatly impacts the sow body. The expulsion of piglets, placenta, and fluids can result in dehydration and consequently constipation post-farrowing. The objective of this study was to determine the effects of an EO product (tradename Absorbezz) on sow fecal dry matter and milk composition. A total of 101 late-gestation sows from three farrowing groups (Group 1: 110 ± 3 d GEST, 263 ± 28 kg initial BW, Group 2: 109 ± 1 d GEST, 259 ± 26 kg initial BW, Group 3: 73 ± 5 d GEST, 238 ± 30 kg initial BW) were allotted to one of two treatments based on parity and BW in each group (Groups 1 and 2: CON: No EO, TRT: 10 mL/d of EO top-dressed; Group 3 received the EO as part of their diet, with a range dependent on the individual sow’s daily feed intake). Sows remained on their respective dietary treatments throughout the remainder of gestation and lactation. Samples were collected from each group (feces; d 110 of gestation, d 4 to 6 and day 14 to 17 of lactation; milk (Group 2 and 3); d 14 to 17). Analysis of variance was performed using PROC GLM of SAS. The TRT group did not experience any differences in the components of fat, protein, and total solids (P > 0.10), there was an increase in lactose (5.97 vs 5.84, P = 0.04), but a decrease in solids non-fat (10.91 vs. 11.00, P = 0.07), and gross energy compared to those of the CON group (4.29 mJ/kg vs. 4.45 mJ/kg, P = 0.08). Fecal DM was not affected at any collection time (P > 0.10). Overall, the addition of EO did not affect fecal DM, but did influence several milk components.

Phosphorus digestibility in low-phytate barley fed to finishing pigs

2003 ◽  
Vol 83 (1) ◽  
pp. 101-104 ◽  
Author(s):  
P. A. Thacker ◽  
B. G. Rossnagel ◽  
V. Raboy
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Finishing Pigs ◽  
Randomized Block Design ◽  
Gross Energy ◽  
Selection For ◽  
Acclimatization Period ◽  
Dietary Treatments ◽  
Phytate Content

Twenty-four crossbred barrows (Camborough 15 Line female × Canabred sire) weighing an average of 51.3 ± 5.1 kg were used in a trial conducted during two periods according to a completely randomized block design. The pigs were assigned to one of six dietary treatments comprised of a normal two-rowed, hulled variety of barley (CDC Bold) or three low-phytate genotypes selected to contain approximately 68, 41 or 3% of the normal level of phytate. A normal hulless barley (CDC Dawn) and a hulless genotype selected to contain 54% of the normal phytate content were also included. The diets fed contained 99.5% barley and 0.5% chromic oxide. The marked feed was provided for a 7-d acclimatization period, followed by a 3-d fecal collection. At the conclusion of the first replicate, the pigs were assigned to different treatments and the procedure was repeated resulting in eight observations per treatment. Selection for phytate content had no effects on the apparent fecal digestibility of dry matter, crude protein or gross energy (P > 0.05). The digestibility coefficients for dry matter and energy were significantly higher for the hulless varieties of barley than the hulled genotypes. Phosphorus digestibility increased as the level of phytate in the barley declined. The linear relationship relating phosphorus digestibility (y) to phytate content (x) was: y = 67.7 − 12.54x       (r2= 0.64; P < 0.0001).

Apparent faecal digestibility and nitrogen retention in piglets fed whole and peeled Cambodian field cricket meal

2017 ◽  
Vol 3 (4) ◽  
pp. 279-288 ◽  
Author(s):  
P. Miech ◽  
J.E. Lindberg ◽  
Å. Berggren ◽  
T. Chhay ◽  
A. Jansson
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Block Design ◽  
Control Diet ◽  
Nitrogen Retention ◽  
Field Cricket ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Dry Matter Digestibility ◽  
Dietary Treatments

This study evaluated diets including whole or peeled (legs removed) crickets (Teleogryllus testaceus) in terms of diet digestibility, growth and nitrogen retention, using pigs as an animal model. The experiment included three iso-nitrogenous diets (18.4% crude protein) including either whole cricket meal (WC), body cricket meal (legs removed, BC) or fish meal (control) as the main protein source. Castrated male piglets (n=21, 30-45 days) with initial body weight 13.0±0.3 kg were allocated to one of the dietary treatments (7 piglets/treatment) in a fixed block design. The piglets were kept in single bamboo/wooden stalls with slatted floors and were adapted to the feeds and the housing for 5 days before starting the 25-day experiment. The diets were offered ad libitum, but close to appetite (approximately 5% of body weight). Feed intake was recorded and piglets were weighed every 5 days. During days 20-25, total collection of faeces and urine was performed. Dry matter and nutrient intake were higher for piglets fed the WC and BC diets than for those fed the control diet. From day 10, piglets fed BC and WC were heavier than piglets fed the control diet, but there were no differences between WC and BC. Dry matter digestibility was highest for diet WC, and ash, crude fibre and crude fat digestibility was higher for BC and WC than for the control diet. Feed conversion ratio was lower for the WC and BC diets than for the control diet, and nitrogen retention (% of digested) was higher. We concluded that field cricket meal is a nutritious feedstuff for mono-gastric animals, and most likely also for humans. Removal of legs did not facilitate or improve the digestibility values and nitrogen retention. Thus, in order to minimise food waste, crickets should not be peeled in this way if they are going to be processed into meal.

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