scholarly journals Effects of Long-Term Supplementation with Brown Seaweeds and Polyphenols in Rabbit on Meat Quality Parameters

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2443
Author(s):  
Raffaella Rossi ◽  
Francesco Vizzarri ◽  
Sabrina Ratti ◽  
Marisa Palazzo ◽  
Donato Casamassima ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Control Diet ◽  
Brown Seaweed ◽  
Quality Parameters ◽  
Feed Additive ◽  
Feed Conversion ◽  
Brown Seaweeds ◽  
Natural Mixture

The objective of the present study was to evaluate the effects of dam and offspring dietary supplementation with a natural feed additive on the growth performance and meat quality parameters of growing rabbits. The growing rabbits are selected from lactating does receiving a control diet (C) or diets supplemented with 0.3% (SP1) and 0.6% (SP2) of feed additive containing brown seaweeds (Laminaria spp.) and plant extracts. In the postweaning phase, the growing rabbits remained in the treatment group defined by their does and the trial lasted 42 days. The average daily feed intake and feed conversion ratio were improved in the rabbit fed 0.6% of the natural feed additive. The cholesterol content tended to be lower in Longissimus lumborum (LL) muscle and decrease in Semimembranosus (SM) muscle (in SP2 −41.36% than controls). The α tocopherol and retinol content were enhanced in both muscles of rabbit fed the natural mixture (SP1 and SP2 groups). An improvement of sensory attributes of texture was observed in both muscles from rabbit fed natural mixture. In conclusion, long term supplementation of both lactating does and offspring with the high dosage of brown seaweed and plant polyphenols improves growth performance and enhances meat nutritional and sensory parameters.

scholarly journals Black soldier fly larval meal in feed enhances growth performance, carcass yield and meat quality of finishing pigs

2021 ◽  
pp. 1-16
Author(s):  
S.Y. Chia ◽  
C.M. Tanga ◽  
I.M. Osuga ◽  
A.O. Alaru ◽  
D.M. Mwangi ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Body Weight Gain ◽  
Control Diet ◽  
Protein Source ◽  
Feed Conversion ◽  
Large White ◽  
Black Soldier Fly ◽  
Pig Feed

Using black soldier fly (BSF, Hermetia illucens) larvae as a novel protein source substituting fishmeal (FM) in animal feeds is globally gaining momentum. BSF can be reared on agro-industrial residues. However, incorporating BSF larval meal (BSFLM) into finisher pig diets has received inadequate attention. This study evaluated the effects of replacing dietary FM with BSFLM on growth, carcass traits and meat quality of finisher pigs. A control diet (including FM: 0% BSFLM) was compared with four dietary levels of replacement of FM with BSFLM at 25, 50, 75 or 100%. Forty hybrid pigs (crossbreeds of purebred Large White and Landrace) were randomly allocated to the five different dietary treatments. Feed intake, body weight gain and feed conversion ratio were measured. After 98 days of feeding, all pigs were slaughtered for the evaluation of carcass and nutritional content of the organ and muscle tissues. Diet significantly affected pig growth performance. Carcass weight of pigs fed diets with BSFLM replacing FM by 50, 75 or 100% (w/w) was higher than for pigs fed control diet with 100% FM as protein source. Crude protein content of pork tissues was high (65-93% on dry-matter basis) across all dietary groups. Therefore, BSFLM can replace FM in pig feed. This is relevant for commercial pig feed production and provides for the first time a nutritional analysis of pork derived from pigs raised on BSFLM.

scholarly journals Preliminary Study on the Effect of Bacillus amyloliquefaciens TL on Cecal Bacterial Community Structure of Broiler Chickens

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Yuxuan Hong ◽  
Yingxian Cheng ◽  
Yanjuan Li ◽  
Xiaowen Li ◽  
Zutao Zhou ◽  
...  
Keyword(s):  
Growth Performance ◽  
Bacillus Amyloliquefaciens ◽  
Broiler Chickens ◽  
High Throughput Sequencing ◽  
Control Diet ◽  
Probiotic Strain ◽  
Feed Additive ◽  
Control Group ◽  
Feed Conversion ◽  
Cecal Microbiota

Probiotics can promote the health and growth performance of animals through modulation of intestinal microbiota. When used as a feed additive, they have the potential to minimize or abolish the use of antibiotics. In this study, we investigated the effect of the probiotic strain Bacillus amyloliquefaciens TL on the growth performance and cecum microflora composition in Cobb 500 broiler chickens. In total, 180 broilers were randomly divided into three groups—each group comprised 4 pens, and each pen contained 15 chickens. The three groups were fed either a control diet, or a diet supplemented with either the antibiotic chlortetracycline or B. amyloliquefaciens TL. Broilers were weighed, and cecum contents were collected on days 7, 14, 21, and 35, respectively. The broilers in both the antibiotic and probiotic groups exhibited significant weight gain compared with controls, exhibiting increases of 16.02% and 13.40%, respectively, after 35 days (P<0.01). Similarly, the feed conversion ratio (FCR, 1–35 days) of broilers in the chlortetracycline and B. amyloliquefaciens TL groups was lower than that of the controls. HiSeq high-throughput sequencing of 16S rRNA of the cecal microbiota was performed on days 7, 14, 21, and 35, respectively. The Firmicutes/Bacteroidetes ratio was higher in the chlortetracycline and B. amyloliquefaciens TL groups than in the control group on days 14, 21, and 35, and especially on day 21. The prevalence of genera Oscillospira, Ruminococcus, Butyricicoccus, and Faecalibacterium (Firmicutes) was higher in the antibiotic and probiotic groups, while that of Bacteroides, Parabacteroides (Bacteroidetes), and Lactobacillus was higher in the control group. In this study, the changes in the microbiota of the probiotic group were similar to those in the antibiotic group. These results suggest that the probiotic strain B. amyloliquefaciens TL can modulate the cecal microbiota of broilers similar to chlortetracycline.

scholarly journals Effect of Excessive or Restrictive Energy on Growth Performance, Meat Quality, and Intramuscular Fat Deposition in Finishing Ningxiang Pigs

Animals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 27
Author(s):  
Jiayi Chen ◽  
Fengming Chen ◽  
Xue Lin ◽  
Yaodong Wang ◽  
Jianhua He ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Meat Quality ◽  
Fatty Acid Synthase ◽  
Control Diet ◽  
Average Daily Gain ◽  
Intramuscular Fat ◽  
Feed Conversion ◽  
Cross Sectional ◽  
Fatty Acid Binding

This study investigated the effects of excessive or restrictive energy on growth performance, meat quality, intramuscular fat (IMF) deposition, and related gene expression in finishing Ningxiang pigs. A total of 36 Ningxiang pigs (43.26 ± 3.21 kg) were randomly assigned to three treatments (6 pens of 2 piglets per treatment) and fed by one of three dietary treatments until the pigs of each treatment weighed approximately 75 kg equally. The three treatments were control diet (digestible energy, DE:13.02 MJ/kg, CON), excessive energy diet (DE 15.22 MJ/kg, EE), and restrictive energy diet (DE 10.84 MJ/kg, RE). Results showed that EE improved average daily gain (ADG) and feed conversion ratio (FCR) (p < 0.01), while nothing significantly changed by RE except FCR increasing (p < 0.01). EE increased the content of IMF and triglycerides (TG) (p < 0.05), L*24h and b*45min (p < 0.01), while decreasing cooking loss and meat tenderness in longissimus thoracis (LT) (p < 0.05). b*24h was significantly increased with the increase of energy level (p < 0.01). Meanwhile, EE increased the cross-sectional area (CSA) of muscle fiber and the mRNA expression of myosin heavy chain (MyHC) IIb, acetyl CoA carboxylase (ACC), fatty acid synthase (FAS), and adipocyte fatty-acid binding protein (FABP4) (p < 0.05). In addition, throughout: A diet supplemented with excessive energy promoted IMF deposition by positively changing lipogenic potential while decreasing tenderness by increasing glycolytic muscle fibers, which together affected meat quality. In terms of growth performance and meat quality, the present study suggests that the low-energy diet is suitable for finishing Ningxiang pigs.

scholarly journals Effects of African Nutmeg (Monodora myristica) spice in aflatoxin-infected diets on growth Performance of Japanese Quails (Cortunix Cortunix)

2020 ◽  
Vol 44 (1) ◽  
pp. 290-295
Author(s):  
O. A. Ukoha ◽  
D. N. Onunkwo
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Egg Quality ◽  
Control Diet ◽  
Research Work ◽  
Liver Weight ◽  
Daily Weight Gain ◽  
Feed Additive ◽  
Feed Conversion ◽  
Monodora Myristica

A research work was carried out to evaluate the effects of toasted Monodora myristica spice as feed additive in quail diet in a completely randomized design. The proximate, vitamin and mineral composition and anti-nutritional factors, growth performance, cut parts and organ characteristics, biochemical parameters and egg quality traits were evaluated in this study that lasted for fifteen weeks. A total of 120 day-old quail chicks were brooded for 14 days. Thereafter, they were allocated to four dietary treatments designated D1, D2, D3 and D4 also having 0, 0.5, 1.0 and 1.5% Monodora myristica respectively. Each treatment was replicated three times at 10 quails (2 males: 8 females) per replicate. Growth performance and carcass characteristics study lasted for 7 weeks while eggs were collected for four weeks. Daily feed intake was reported to be 2.39g/bird/day, 2.83g/bird/day, 3.22g/bird/day and 3.15g/bird/day respectively for 0, 0.5, 1.0 and 1.5% Monodora myristica-flavoured diets. There was no significant (P>0.05) increase in the daily feed intake though it increased only numerically as level of inclusion increased from 0% to 1.0% but decreased at the level above 1.0%. There were significant (P<0.05) differences in the average daily weight gain and feed conversion ratio among the varying treatments. Average daily weight gains for the groups were 1.68g/b/d, 2.18g/b/d, 3.35g/b/d and 3.37g/b/d respectively for D1, D2, D3 and D4. Significant (P<0.05) differences were observed in the cut parts and organ characteristics. From the results, Monodora myristica was not observed to be detrimental to the quails with respect to the weight of organs and cut parts. Dressed weight increased as level of inclusion increased up to 1.0% but then declined afterwards to 137.69g. Liver weights were 3.55%, 2.55%, 1.79% and 1.77% respectively for D1, D2, D3 and D4. Quails fed the control diet recorded the highest liver weight (P<0.05) of 3.55% indicating stress condition. The low liver weight in quails fed Monodora-flavoured diet indicates potential of Monodora to protect the liver from free radicals that cause stress. Breast meat was significantly reduced at 1.0% and 1.5% M. myristica inclusion

scholarly journals Spirulina (Arthrospira fusiformis) as a potential protein source in practical diets for fry mariculture of Rufiji tilapia (Oreochromis urolepis urolepis)

2019 ◽  
Vol 18 (2) ◽  
pp. 57-67
Author(s):  
Deogratias P. Mulokozi ◽  
Matern S. Mtolera ◽  
Aviti J. Mmochi
Keyword(s):  
Growth Performance ◽  
Culture Media ◽  
Salt Water ◽  
Control Diet ◽  
Survival Rates ◽  
Daily Weight Gain ◽  
Feed Additive ◽  
Control Fish ◽  
Control Group ◽  
Feed Conversion

The effects on growth performance, feed utilization, survival and whole fish body proximate composition of replacing fishmeal (Rastrineobola argentea) with a locally available spirulina species (Arthrospira fusiformis) as a protein ingredient in the feed of Rufiji tilapia (Oreochromis urolepis urolepis) fry was examined. Fishmeal replacement with A. fusiformis was carried out at 5%, 15%, 25%, 35% and 100% (S5, S15, S25, S35 and S100), and the effect of the replacement was compared with the control diet (S0, 0% spirulina). Fish fry were stocked at an average initial weight of 0.57 g at 10 fish per 0.1 m3 and cultured for 60 days using full strength salt water (30-35 ppt). A. fusiformis was isolated from Momela Lake in Arusha National Park, Tanzania and propagated using selected culture media. It was observed that fish fry fed spirulina at a 5% fishmeal substitution level diet had better (p<0.05) final weight (8.48), average daily weight gain (0.132), specific growth rate (4.47), feed conversion rate (2.08) and protein efficiency ratio (1.37) compared to the control fish group. Growth performance in fish fed diet S15 was comparable with the control group (p>0.05). Spirulina supplementation had no effect on fish survival rates and meat quality. It appears that the Momella Lake spirulina may be an appropriate growth-stimulating plant protein when used as a feed additive in Rufiji tilapia mariculture. 

scholarly journals Efficacy of a Synergistic Blend of Organic Acids and ß-1,4 Mannobiose on Cecal Salmonella Counts and Growth Performance in Salmonella Challenged Broiler Chickens: A Meta-Analysis

Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2988
Author(s):  
Sandra J. A. van Kuijk ◽  
Yanming Han
Keyword(s):  
Organic Acids ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Meta Analysis ◽  
Control Diet ◽  
Conversion Ratio ◽  
Feed Additive ◽  
Control Group ◽  
Post Inoculation ◽  
Feed Conversion

This study aimed at investigating the effect of a functional synergistic feed additive blend, containing organic acids and ß-1,4 mannobiose, on cecal Salmonella counts and growth performance of broiler chickens. A meta-analysis combining 13 individual studies, executed in Salmonella-challenged broilers comparing a control diet with and without the synergistic blend, was performed. Cecal Salmonella colonies and overall growth performance were measured. Raw data from all studies were combined and analyzed using PROC MIXED in SAS, taking the within and between-study variation into account. In the first 14 days post-inoculation (DPI), cecal Salmonella was reduced by 0.429 log CFU/g (p = 0.011, n = 10 comparisons from five studies) when feeding the synergistic blend compared to the control group. During 15–34 DPI, the overall means were not different between treatments (0.069 log CFU/g; p = 0.519, n = 12 comparisons from eight studies). The feed conversion ratio was improved when feeding the synergistic blend compared to the control diet (1.474 vs. 1.482, respectively; p = 0.002). In conclusion, feeding a synergistic blend, containing organic acids and ß-1,4 mannobiose amongst other ingredients, reduced cecal Salmonella counts during the first 14 DPI and improved growth performance of Salmonella challenged broilers compared to a control diet.

scholarly journals The effect of herbal feed additive on the growth performance, carcass characteristics and meat quality of broiler chickens fed low-energy diets

2019 ◽  
Vol 62 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Krzysztof Lipiński ◽  
Zofia Antoszkiewicz ◽  
Sylwia Kotlarczyk ◽  
Magdalena Mazur-Kuśnirek ◽  
Joanna Kaliniewicz ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Efficiency Index ◽  
Energy Concentration ◽  
Feed Additive ◽  
Dietary Energy ◽  
Feed Conversion

Abstract. The aim of this study was to determine the effect of herbal feed additive on growth performance, carcass characteristics, the chemical composition of breast muscles and selected meat quality parameters in broiler chickens. The experiment was performed on 1080 Ross 308 chickens, which were randomly divided into six groups with six replicates per group. In experimental groups, dietary energy concentration was reduced by 0.10 or 0.25 MJ kg−1, and the diets were or were not supplemented with the Superliv herbal formula at 500 g t−1 of diet. A statistical analysis revealed that Superliv had a beneficial influence on the final body weights (BWs) of birds, average daily gain (ADG), feed conversion ratio (FCR), European Efficiency Index (EEI) and the proportion of heart relative to total carcass weight. However, meat acidity measured 15 min post mortem was higher in experimental groups. A decrease in dietary energy concentration contributed to a highly significant increase in the water-holding capacity (WHC) of meat and natural drip loss, an increase in pH15, an increase in color lightness, a decrease in redness, an increase in the fat content of meat, and a decrease in malondialdehyde (MDA) concentration.

scholarly journals Partial and Total Replacement of Soybean Meal with Full-Fat Black Soldier Fly (Hermetia illucens L.) Larvae Meal in Broiler Chicken Diets: Impact on Growth Performance, Carcass Quality and Meat Quality

Animals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2715
Author(s):  
Daria Murawska ◽  
Tomasz Daszkiewicz ◽  
Wiesław Sobotka ◽  
Michał Gesek ◽  
Dorota Witkowska ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Control Diet ◽  
Experimental Period ◽  
Taste Intensity ◽  
Feed Conversion ◽  
Hermetia Illucens ◽  
Meal Protein

The aim of this study was to compare selected growth performance parameters and slaughter characteristics in broiler chickens fed diets with a different content of full-fat Hermetia illucens L. (HI) larvae meal. The experiment was performed on 384 male broiler chickens (Ross 308) reared to 42 d of age and assigned to four dietary treatments (HI0—control diet and diets where soybean meal protein (SBM) was replaced with HI protein in 50%, 75% and 100%, respectively). The final body weights of chickens were as follows: 3010.0 g (HI0), 2650.0 g (HI50), 2590.0 g (HI75) and 2375.0 g (H100, p < 0.05). The carcasses of chickens from the experimental groups contained less meat and more abdominal fat. The feed conversion ratio for the entire experimental period was similar in groups HI0, HI50 and HI75 and more desirable than in group HI100 (p < 0.05). The meat of broiler chickens from groups HI75 and HI100 was characterized by significantly (p < 0.05) lower juiciness and taste intensity than the meat of birds from groups HI0 and HI50. The replacement of SBM protein with full-fat HI larvae meal in broiler diets exceeding 50% significantly compromised the growth performance of birds and the carcass and meat quality.

scholarly journals Effect of dietary supplementation of seaweed (Ulva lactuca) and Azolla on growth performance, haematological and serum biochemical parameters of Aseel chicken

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Vijayalingam Thavasi Alagan ◽  
Rajesh Nakulan Vatsala ◽  
Ilavarasan Sagadevan ◽  
Vairamuthu Subbiah ◽  
Venkataramanan Ragothaman
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Well Being ◽  
Ulva Lactuca ◽  
Feed Conversion ◽  
Serum Biochemical

Abstract Background An effort was made to assess the effectiveness of dietary supplementation of Ulva lactuca (U. lactuca), a seaweed and Azolla individually and in combination on different physiological parameters of Aseel chicken. A total of 40 Aseel chicks of 8 weeks old were allocated into four groups, C1 (control), T1 (Azolla alone), T2 (seaweed alone) and T3 (seaweed plus Azolla). Aseel chicks in C1 were fed with formulated grower feed alone, birds in T1 had control diet with 5% Azolla, birds in T2 had control diet with 3% U. lactuca and birds in T3 had control diet admixtured with 5% of Azolla and 3% of U. lactuca. Parameters were recorded for a continuous period of 2 months in 15 days interval. Results The growth performance was found to be significant (P ≤ 0.05) during 30 days of feed trials and highly significant (P ≤ 0.01) during 45 and 60 days of treatment. Birds in T3 had a higher body weight gain, shank length and feed conversion efficiency followed with T1 and T2 compared to C1. PCV, RBC, WBC and heterophil counts were not influenced (P ≥ 0.05) by dietary treatments. Uric acid, creatinine, AST, glucose, triglycerides and magnesium levels revealed a high significant (P ≤ 0.01) variation, and cholesterol level showed significant (P ≤ 0.05) changes during 30th and 60th day of feed trials between the control and treatment groups. Total protein, globulin, phosphorus and electrolytes like Na, K and Cl levels were not significant (P ≥ 0.05) during 30th day and were highly significant (P ≤ 0.01) during the 60th day of the trial. Conclusions It could be noted that inclusion of U. lactuca and Azolla as feed supplement in grower chicken had a better body weight gain when given in combination (U. lactuca and Azolla) rather than supplemented with the sole entity. Based on the haematological and serum biochemical analysis, the supplementation of U. lactuca and Azolla at the levels included in this trial did not pose any threat to the physiological well-being of Aseel chicken.

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