scholarly journals Dietary Beta-Hydroxy-Beta-Methyl Butyrate Supplementation Affects Growth, Carcass Characteristics, Meat Quality, and Serum Metabolomics Profile in Broiler Chickens

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhiyi Tang ◽  
Bo Song ◽  
Changbing Zheng ◽  
Jie Zheng ◽  
Yulong Yin ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Methyl Butyrate ◽  
Metabolome Profiling ◽  
Daily Gain ◽  
Serum Metabolomics

This study aimed to explore the effects of beta-hydroxy-beta-methyl butyrate (HMB) on serum metabolic profiles and meat quality of muscles in Wenshi broiler chickens. Birds were fed a basal diet with an additional 0, 0.05, 0.10, or 0.15% HMB, respectively. Results showed that dietary HMB quadratically increased the average daily gain (P = 0.058) and decreased feed:gain (P < 0.05) mainly in the starter phase. At 51 days of age, birds receiving 0.10% HMB diet exhibited less abdominal fat and more breast yield than the control (P < 0.05). Moreover, dietary HMB quadratically decreased the L∗ value and drip loss in selected muscles (P < 0.05) and increased the a∗ value in breast muscle (P < 0.05). Serum metabolome profiling showed that the most differentially abundant metabolites are lipids and lipid-like molecules, including phosphatidylcholines. It was concluded that HMB improved growth performance and meat quality of muscle in broilers.

scholarly journals EFEKTIVITAS BETAIN PADA PAKAN AYAM BROILER RENDAH METIONIN BERDASARKAN PARAMETER BERAT BADAN DAN KARKAS

2017 ◽  
Vol 27 (1) ◽  
pp. 1
Author(s):  
Adi Ratriyanto ◽  
Rysca Indreswari ◽  
Sudiyono Sudiyono
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Methyl Groups ◽  
Broiler Performance ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Daily Gain

<p>This experiment was conducted to investigate the efficacy of methyl groups donor of betaine to spare methionine based on performance and carcass in broiler chickens. In total, 100 day old broiler chickenss were used in this experiment. They were allocated to 4 dieaty treatmants in 5 replicates with 5 broilers each. The basal diet was deficient in methionine. The control diet was obtained from basal diet supplemented with methionine to meet the requirements 5 g/kg diet for starter period and 3.8 g/kg diet for finisher period. The rest 3 treatments were basal diet deficient in methionine supplemented with 1, 2 and 3 g betaine per kg diet. The variables that were observed included average daily gain and carcass characteristics. The data were than analyzed by analysis of variance of Completely Randomized Design and continued with Dunnet test. The result indicated that supplementation of 1 and 2 g betaine per kg diet deficient in methionine resulted the broiler performance which was not different with supplementation of methionine. Accordingly, carcass characteristics for broilers fed diet supplemented with methionine were not different with that supplemented with betaine, which indicated that betaine may reduce the methionine level in the broiler diet. It can be concluded that betaine spares metionine in broiler diets.</p>

Effect of feeding barley based diets on animal performance, carcass characteristics and meat quality of crossbred beef cattle with and without Wagyu genetics

1997 ◽  
Vol 77 (4) ◽  
pp. 655-662 ◽  
Author(s):  
P. S. Mir ◽  
D. R. C. Bailey ◽  
Z. Mir ◽  
S. D. M. Jones ◽  
T. Entz ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Barley Grain ◽  
Crossbred Cattle ◽  
Target Weight ◽  
Meat Samples

Growth performance, carcass characteristics and meat quality of European and British crossbred (EBC; no Wagyu genetics; 28 heifers and 30 steers) cattle were compared with crossbred cattle with 75% Wagyu genetics (WC; seven heifers and 14 steers) to determine the influence of Wagyu genetics on marbling grade of beef cattle fed barley-based diets in a factorial design experiment. Weaned calves (250 d average age) were fed, one of two diets (diet 1, 35% barley grain; diet 2, 40% hay cubes on DM basis, with barley silage, protein and vitamin/mineral premix) for 84 d and then fed diet 1 until they weighed 394 to 432 kg. All cattle were finished on an 80% (DM basis) rolled barley diet and slaughtered. Carcasses were graded and samples procured for meat quality and Warner–Bratzler shear force determination. Number of days on backgrounding diets to arrive at target weight (380 kg) was greater (P < 0.05) for the WC cattle, owing to relatively lower ADG, but days on the finishing diet were fewer for these cattle, compared with EBC cattle. Warm carcass yield (dressing percent) was greater (P < 0.05), but backfat depth was lower (P < 0.05) for WC cattle relative to that of EBC cattle, yet proportion of lean meat yield was similar. Eighty three percent of WC cattle carcasses had Canada AAA (small or more) marbling grade compared with 13% for EBC cattle carcasses. Mean shear force of meat samples from EBC and WC cattle was 4.2 and 3.8 kg, respectively. Results indicated that the extent of carcass marbling can be increased by incorporating Wagyu genetics but age at slaughter of WC cattle was 19 d greater than that of EBC cattle and carcass size was reduced. Key words: Average daily gain, carcass characteristics, European and British crossbred, feed to gain ratio, meat quality, Wagyu crossbred cattle

scholarly journals Effects of xylo-oligosaccharide and flavomycin on the immune function of broiler chickens

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4435 ◽  
Author(s):  
Lin Yuan ◽  
Wanli Li ◽  
Qianqian Huo ◽  
Chenhong Du ◽  
Zhixiang Wang ◽  
...  
Keyword(s):  
Immune Function ◽  
Growth Performance ◽  
Mrna Expression ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Interleukin 2 ◽  
Test Group ◽  
Basal Diet ◽  
Toll Like Receptor 5 ◽  
Daily Gain

This study investigated the effects of xylo-oligosaccharide (XOS) and flavomycin (FLA) on the performance and immune function of broiler chickens. A total of 150 ArborAcres broilers were randomly divided into three groups and fed for six weeks from one day of age in cascade cages. The diets of each test group were (1) a basal diet, (2) the basal diet supplemented with 2 mg/kg FLA, and (3) the basal diet supplemented with 2 mg/kg XOS. At 21 and 42 days, the growth performance index values and short-chain fatty acid (SCFA) concentrations in the cecum were quantified. Furthermore, immunoglobulin G (IgG) and plasma interleukin 2 (IL-2) as well as mRNA expression of LPS-Induced TNF-alpha Factor (LITAF), Toll-like receptor-5 (TLR5) and interferon gamma (IFNγ) in the jejunum were quantified. The results showed that administration of XOS or FLA to chickens significantly improved the average daily gain. Supplementation with XOS increased acetate and butyrate in the cecum, while FLA supplementation increased propionate in the cecum. An increase in plasma IgG was observed in XOS-fed 21-day-old broilers, but FLA supplementation decreased IgG in the plasma of 42-day-old broilers and increased plasma IL-2. Furthermore, FLA or XOS supplementation downregulated mRNA expression of IFNγ, LITAF and TLR5. The above data suggest that addition of XOS and FLA to the diet could improve the growth performance of broilers and reduce the expression of cytokine genes by stimulating SCFA.

Comparison of 2 growth patterns during the growing period in fattening bulls. 3. slaughter characteristics, carcass composition and meat quality

1993 ◽  
Vol 1993 ◽  
pp. 217-217
Author(s):  
A. Clinquart ◽  
C. Van Eenaeme ◽  
T. Van Vooren ◽  
J. Van Hoof ◽  
L. Istasse
Keyword(s):  
Meat Quality ◽  
Food Restriction ◽  
Early Stage ◽  
Average Daily Gain ◽  
Live Weight ◽  
Growth Patterns ◽  
Carcass Composition ◽  
Growing Period ◽  
Daily Gain

The degree to which growth patterns are modified after a period of food restriction affects the compositional changes of the carcasses(Carstens et al., 1992), furthermore, the growth rate has a direct effect on the physical properties of meat (Fishell et al., 1985). The objective of this experiment was to evaluate the effects of a severe food restriction at a early stage of maturity on the slaughter characteristics and meat quality of Belgian Blue bulls.Twelve Belgian Blue bulls (dual purpose type) weighing 233 kg were offered two different planes of nutrition during the growing period. Six bulls (Group-) received a restricted diet so that their average daily gain was 0.34 kg/d (Group+) during 202 days. By contrast six other bulls were given a more conventional growing diet and their average daily gain was 1.13 kg/d. Both Groups were fattened with similar diet and slaughtered when the live weight was close to 600 kg. Carcass weight was measured and killing-out proportion calculated, the composition of the carcass was estimated after dissection of ribs 7, 8, 9 removed 48 h post-mortem.

Effects of dietary supplement of mulberry leaf (Morus alba) on growth and meat quality in rabbits

2018 ◽  
Author(s):  
Q.R. Hou ◽  
J. Zhang ◽  
T. Chen ◽  
W.G. Zhao ◽  
L. Li
Keyword(s):  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
B Value ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Leg Muscles ◽  
Mulberry Leaf ◽  
Leaf Powder ◽  
Daily Gain

This research evaluated the effects of mulberry leaf in diet on growth and meat quality in rabbits. Five treatment diets were prepared by using a proportion of 0% (CK), 5% (ML5), 10% (ML10), 15% (ML15) and 20% (ML20) mulberry leaf powder (MLP), respectively. Results showed that average daily gain (ADG) in the ML20 group was significantly (P£ 0.05) lower than that in the CK, ML5 and ML10 treatments. Feed conversion ratio (FCR) in the ML20 treatment was significantly (P£ 0.05) higher than that in all other treatments. Most of the carcass characteristics had no significant differences among the five treatments (P>0.05), however, abdominal fat percentage in the four MLP treatments was significantly (P£ 0.05) lower than that in the CK. The L* and a* values in most of MLP treatment samples of longissimus dorsi and hind leg muscles were significantly increased, and the b* value significantly declined than those in the CK (P£ 0.05). Drip loss values in the ML10, ML15 and ML20 group were significantly (P£ 0.05) lower than those in the CK. Moisture, fat and ash contents in the higher MLP level treatments (ML15 and ML20) were significantly (P£ 0.05) lower than those in the CK. In conclusion, MLP for a certain proportion in diet (£ 15%)is greatly valuable for improvement of growth and meat appearance of rabbits, and a high proportion of MLP (e.g. ³ 20%) may impede growth of young rabbits.

Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle

2012 ◽  
Vol 92 (3) ◽  
pp. 327-341 ◽  
Author(s):  
E. M. McGregor ◽  
C. P. Campbell ◽  
S. P. Miller ◽  
P. P. Purslow ◽  
I. B. Mandell
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
High Energy ◽  
Ad Libitum ◽  
Limit Feeding ◽  
Daily Gain

McGregor, E M., Campbell, C. P., Miller, S. P., Purslow, P. P. and Mandell, I. B. 2012. Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle. Can. J. Anim. Sci. 92: 327–341. The effects of nutritional management regimen and breed on growth performance, carcass attributes, and meat quality were evaluated in 68 British (BRIT) and Continental (CONT) crossbred steers, managed on one of three nutritional regimens: (1) ad libitum access to a 77% corn diet (ALGRAIN), (2) limit feeding initially of the 77% corn diet, followed by ad libitum access to the 77% corn diet (LFGRAIN), and (3) limit feeding initially of a 90% haylage diet, followed by ad libitum access to the 77% corn diet (LFHAYL). Nutritional regimen by breed interactions (P<0.02) were present for average daily gain, dry matter intake (DMI), gain to feed, and shear force. LFHAYL regimen decreased gains to a greater extent for BRIT steers than CONT steers managed on ALGRAIN or LFGRAIN. Feed intakes were similar across nutritional regimens for CONT steers, while DMI was depressed in BRIT on LFHAYL as compared with steers started on ALGRAIN or LFGRAIN. Gain to feed was greater in BRIT cattle on LFGRAIN vs. ALGRAIN, while gain to feed was similar in CONT started on grain (ALGRAIN, LFGRAIN). Shear force was lower for beef from LFHAYL BRIT vs. beef from BRIT on ALGRAIN or LFGRAIN, while the converse was true for CONT. Limit feeding of a high-energy diet may be appropriate for cattle of British background to reduce feed input costs, while ensuring tenderness.

scholarly journals Influence of Maternal Carbohydrate Source (Concentrate-Based vs. Forage-Based) on Growth Performance, Carcass Characteristics, and Meat Quality of Progeny

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2056
Author(s):  
Erin R. Gubbels ◽  
Janna J. Block ◽  
Robin R. Salverson ◽  
Adele A. Harty ◽  
Warren C. Rusche ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Late Gestation ◽  
Carbohydrate Source ◽  
Ultrasound Measurements ◽  
Concentrate Treatment ◽  
Progeny Performance

The objective of this research was to investigate the influence of maternal prepartum dietary carbohydrate source on growth performance, carcass characteristics, and meat quality of offspring. Angus-based cows were assigned to either a concentrate-based diet or forage-based diet during mid- and late-gestation. A subset of calves was selected for evaluation of progeny performance. Dry matter intake (DMI), body weight (BW), average daily gain (ADG), gain to feed (G:F), and ultrasound measurements (muscle depth, back fat thickness, and intramuscular fat) were assessed during the feeding period. Carcass measurements were recorded, and striploins were collected for Warner-Bratzler shear force (WBSF), trained sensory panel, crude fat determination and fatty acid profile. Maternal dietary treatment did not influence (p > 0.05) offspring BW, DMI, ultrasound measurements, percent moisture, crude fat, WBSF, or consumer sensory responses. The forage treatment tended to have decreased (p = 0.06) 12th rib backfat compared to the concentrate treatment and tended to have lower (p = 0.08) yield grades. The concentrate treatment had increased (p < 0.05) a* and b* values compared to the forage treatment. These data suggest variation in maternal diets applied in this study during mid- and late-gestation has limited influence on progeny performance.

Nano selenium improves humoral immunity, growth performance and breast-muscle selenium concentration of broiler chickens

2020 ◽  
Vol 60 (16) ◽  
pp. 1902
Author(s):  
Esmail Mohammadi ◽  
Hossein Janmohammadi ◽  
Majid Olyayee ◽  
Javad Ashrafi Helan ◽  
Somayeh Kalanaky
Keyword(s):  
Growth Performance ◽  
Humoral Immunity ◽  
Broiler Chickens ◽  
Sodium Selenite ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Breast Muscle ◽  
Breast Meat ◽  
The Impact ◽  
Daily Gain

Context Selenium (Se) is an essential trace element and plays pivotal roles in poultry nutrition. Aims The present study was designed to compare the impact of dietary supplementation of different sources of Se on growth performance, Se concentration of breast meat, and immune response of broiler chickens. Methods In total, 300 1-day-old as hatched broilers were randomly allocated to six dietary treatments, with five replicates of 10 birds per each. The experimental diets were as follows: (1) corn–soybean meal-based diet supplemented with 0.30 mg/kg of sodium selenite, (2) basal diet supplemented with 0.30 mg/kg of Se-enriched yeast, and (3–6) basal diet supplemented with 0.15, 0.30, 0.90 and 1.50 mg/kg of nano-Se respectively. Humoral immunity was assessed by antibody titer against a 5% sheep red blood-cell suspension and cellular immunity was measured by administration of phytohaemagglutinin-p at 38 days. Key results Results indicated that during the periods from 1 to 10 days, from 11 to 24 days, from 25 to 42 days and from 1 to 42 days, average daily gain, average daily feed intake, and feed conversion ratio did not differ among the treatments (P &gt; 0.05). Assessment of orthogonal contrasts at the whole phase of feeding showed that the average daily gain in the broilers fed organic Se was significantly (P &lt; 0.05) higher than that in those fed inorganic Se, as well as nano-Se in comparison to organic Se; such effects were not observed in earlier feeding stages. Se supplementation significantly increased the Se concentration of breast muscle (P &lt; 0.0001). The birds that received 1.50 mg/kg of diet nano-Se showed higher (P &lt; 0.05) total immunoglobulin and IgG titers in primary and secondary immune responses against sheep erythrocytes respectively. Toe web swelling after 24 h and 48 h of receiving phytohaemagglutinin-p was not affected by Se supplementation (P &gt; 0.05). Conclusions In conclusion, the addition of nano-Se gave better results than did inorganic (sodium selenite) and organic (yeast selenium) forms of Se in performance traits, breast meat Se concentration and antibody response of broilers. Implications Novel elemental nanometer particulates, including nano-Se, exhibit new characteristics and a different mode of actions in comparison with organic and inorganic forms of Se sources in poultry diets. Inclusion of the nano form of Se in broiler diets and study of productive performance, immunity responses and meat quality leads to improve balanced broiler diets formulation in view of Se.

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