scholarly journals Effect of Essential Oil of Thyme (Thymus vulgaris L.) or Increasing Levels of a Commercial Prebiotic (TechnoMOS®) on Growth Performance and Carcass Characteristics of Male Broilers

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3330
Author(s):  
Hossein Amouei ◽  
Giulia Ferronato ◽  
Ali Ahmad Alaw Qotbi ◽  
Mehrdad Bouyeh ◽  
Peter G. Dunne ◽  
...  
Keyword(s):  
Essential Oil ◽  
Growth Performance ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Dietary Treatment ◽  
Conversion Ratio ◽  
Thymus Vulgaris ◽  
Feed Conversion ◽  
Basic Diet ◽  
Dietary Treatments

To investigate the effect of thyme (Thymus vulgaris L.) essential oil (TEO) or increasing inclusion of a prebiotic (TechnoMOS®) on growth performance and carcass characteristics of Ross 308 broilers, 400 one-day-old male broilers (43.5 g, as mean of body weight) were placed in 20 pens (2.0 × 1.0 m, with a floor area of 0.10 m2 per bird) in groups of 20, and each pen cage was assigned to a specific dietary treatment (four replicates per each one). The dietary treatments included basic diet (no additive; CTR), basic diet including 0.025%, 0.075%, or 0.125% of TechnoMOS® (MOS025, MOS075, and MOS125, respectively), or basic diet including 0.075% thyme extract (TEO075). All dietary treatments were offered from the beginning of the study until the end of the trial. There were no effects of MOS or TEO on carcass characteristics. No significant effects of treatment on weight gain were obtained on a week-by-week basis; however, CTR birds gained less weight during the grower phase and overall compared with MOS birds. The same contrast for feed intake revealed that CTR birds had greater feed intake than MOS birds during both the grower phase and overall (492.18 g and 486.35 g, respectively). In conclusion, treated groups showed an improved feed conversion ratio.

scholarly journals Effect of replacing maize with pride of barbados (Delonix regia) seed meal on growth performance, carcass, serum and haematological indices of rabbits

2021 ◽  
Vol 42 (2) ◽  
pp. 94-102
Author(s):  
R. Olajide ◽  
O. A. Adeniyi
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Dietary Treatment ◽  
Serum Biochemistry ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Dietary Treatments

Thirty growing rabbits with mean body weight of 516.67g were used in a feeding trial that lasted for 56 days. The animals were randomly distributed into five (5) dietary treatment groups consisting of six (6) animals per group. Each treatment group was replicated six (6) times with individually housed rabbit per replicate. The five dietary treatments contained 0, 25, 50, 75 and 100% replacement levels of Delonix regia seed meal (DRSM) for maize in a completely randomized design experiment. The parameters investigated during the study were feed intake, weight gain, feed conversion ratio and feed cost. At the end of the feeding trial, blood samples were collected from the animals through the ear vein for haematology and serum biochemistry. Fifteen (15) animals at the rate of 3 animals per dietary treatment were stunned and sacrificed for the determination of carcass analysis. Samples of visceral organs and primal parts were collected from the animals for carcass yield evaluation. Data obtained were subjected to one-way analysis of variance. The inclusion of DRSM in rabbit diets did not significantly (p>0.05) influence the daily feed intake, weight gain and feed conversion ratio of the animals. The carcass parameters except the forelegs and all the organ weights were not significantly (p<0.05) affected by the dietary treatments. The highest value (3.85%) of the forelegs was obtained in treatment 4 (75% DRSM). The corresponding values of 3.35, 3.39 and 3.40 respectively for animals in treatments 1, 2 and 5 were similar but lower than that on treatment 4 and higher than 3.19% of treatment 3. Feeding of DRSM to rabbits did not show any significant (p>0.05) variation in both the haematological and biochemical components of the rabbits studied except the globulin. The globulins (g/dl) were 1.50, 3.0, 1.70, 3.30 and 1.75 respectively for animals on treatment 1, 2, 3, 4 and 5. All these haematological and serum biochemical parameters were within the normal physiological ranges for rabbits. Cost per Kg feed and cost of feed per Kg live weight decreased significantly (p<0.05) with increased replacement levels of DRSM for maize in the diets with 100% substitution having the least cost. The results suggest that DRSM could completely replace maize (up to 100%) without any deleterious effect on the growth performance, carcass, haematology and serum biochemistry of rabbits. Therefore DRSM may be a panacea to high cost of maize and can be recommended for rrabbit farmers.

Effect of expanded diets on growth performance, meat quality and carcass characteristics in finishing pigs

2017 ◽  
Author(s):  
Xin Jian Lei ◽  
Jun Bae ◽  
Ju Lee ◽  
Sang Lee ◽  
In Kim
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Soybean Meal ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Finishing Pigs ◽  
Feed Conversion ◽  
Daily Gain

The objective of the study was to evaluate the effects of expanded diets on growth performance, meat quality, and carcass characteristics in finishing pigs. A total of 80 finishing pigs [(Landrace × Yorkshire) × Duroc] were randomly allotted to two dietary treatments: 1) unexpanded corn-soybean meal diets; 2) expanded corn-soybean meal diets. Each treatment consisted of ten replicate pens with four pigs (2 gilts and 2 barrows) per pen. There were no differences in daily feed intake and daily gain throughout the experiment (P less than 0.05). However, expanded diets decreased feed conversion ratio compared with unexpanded diets (P less than 0.05). Expanded diets had no effect on carcass characteristics and meat quality with the exception of increased sensory evaluation (color) of meat compared with unexpanded diets (P less than 0.05). In conclusion, expanded diets can improve feed conversion ratio but have no effect on daily gain and daily feed intake and sensory evaluation of meat color.

scholarly journals Effect of dietary copper and probiotic supplementation on growth performance and carcass characteristics of broiler chickens

2020 ◽  
Vol 44 (1) ◽  
pp. 245-253
Author(s):  
M. A. Oguntoye ◽  
O. M. O. Idowu
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Carcass Characteristics ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Probiotic Supplementation ◽  
Dietary Copper

This study was conducted to investigate the effect of dietary copper and probiotic supplementation on growth performance and carcass characteristics of broiler Chickens. A total of 180-day old marshal broiler chicks of mixed sex were randomly allotted to six treatment groups of 30 birds each. The Treatments were divided into three replicates of ten birds each; starter and finisher diets were formulated and fed for a period of fifty-six days. The dietary treatments were subjected to completely randomized design experimental layout which was made up of probiotic (0 and 500ppm) and copper (0, 125 and 250mg).The chicks were fed the broiler starter diet for the first 28 days and broiler finisher for the last 28 days. Treatment effect on broiler body weight, feed intake and feed conversion ratio were determined on a weekly basis. Data obtained were analyzed using analysis of variance (ANOVA) and, Duncan's Multiple Range Test was used to separate significant means. Dietary supplementation of copper and probiotic had no significant (P> 0.05) effect on final weight (FW), daily weight gain (DWG), feed intake (FI), and feed conversion ratio (FCR) at the starter phase of the experiment. However, at finisher phase, inclusion of probiotic resulted in higher significant (P < 0.05) values for FW (2214.12g/b) DWG (60.22g/b/d), FI (159.02g/b/d), and FCR (2.64). The carcass yields of the broilers were significantly (P< 0.05) influenced by copper and probiotic supplementations. However, lower value (1.07%) was obtained for abdominal fat in broilers fed 250mg Cu/kg supplemented diet. The study concluded that supplementation of copper and probiotics resulted in improved growth performance and carcass yield of broiler chickens.

Performance, Carcass and Relative Organ Weights of Young Boars Fed Graded Dietary Levels of Raw Icacinia manni (Earth Ball)

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
J.S Ekpo ◽  
I.M Sam ◽  
U.M Okon
Keyword(s):  
Growth Performance ◽  
Carcass Characteristics ◽  
Conversion Ratio ◽  
Feed Conversion ◽  
Large White ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Dressing Percentage ◽  
Young Boars ◽  
Dietary Treatments

A study conducted for a period of fifty (50) days to determine the growth performance, carcass and organ weight of growing boars fed graded dietary levels of raw Icacinia manni tuber meal. Four experimental diets were formulated with Icacinia manni (Earth ball) replacing maize at 0, 5, 10 and 15% levels designated as T1(control), T2, T3 and T4, respectively. Forty-eight (48) young boars (Landrace x Large white) each weighed 7.72+ 0.35kg were assigned to the four dietary treatments and replicated three times of four boars each in a completely randomized design. Carcass traits and relative organs weights were evaluated. These traits were; dressed weight, dressing percentage, head, shank, trotter, belly, thick rib chop, rib chop, loin, chump chop, leg fillet end, Leg shank end, liver, lungs, kidney spleen and heart. The results indicated that apart from T4, diets T1, T2 and T3 did not differ significantly (P>0.05) in terms of feed intake, weight gain and feed conversion ratio. This implies that Icacinia manni did not affect growth performance except at 15% level of inclusion Similarly, Pigs fed diets T2 and T3 showed significant (P<0.05) increase in dressed weight, dressing percentage as well as certain primal cuts such as breast, rib chop, loin and chump chop. However, relative organs weight did not differ (P>0.05) across dietary treatments except the lungs in T4 (15%) signifying the non-deleterious effect of raw icacinia manni, at 10%. To attain optimum performance and carcass characteristics in young boars therefore, inclusion of raw Icacinia manni in young boars’ diet at 10 percent is recommended.

scholarly journals Supplementation of natural minerals on the performance of broiler

2020 ◽  
Vol 48 (2) ◽  
pp. 92-98
Author(s):  
Z Ahamed ◽  
SC Das ◽  
B Dey ◽  
MR Azad ◽  
KMS Islam
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Feed Intake ◽  
Basal Diet ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Natural Minerals ◽  
Commercial Broiler ◽  
Dietary Treatments

An experiment was conducted to evaluate the efficacy of AZOMITE® as source of natural minerals on growth performance of commercial broiler. A total of 1,020 day-old Cobb 500 male broiler chicks were randomly allocated to 5 dietary treatments with 6 replications per treatment having 34 chicks in each pen. The five dietary treatments were: (i) basal diet without AZOMITE®, (ii) basal diet with 0.25% AZOMITE®, (iii) basal diet with 0.50% AZOMITE® which was recommended by manufacturer, (iv) basal diet with 0.75% AZOMITE® and (v) basal diet with 1.0% AZOMITE®. Broilers were reared in open-sided gable type house for a period of 32 days. Results showed that the supplementation of AZOMITE® had significant effect on growth performance (p<0.01) of broilers. Live body weight (LBW), body weight gain (BWG), average daily gain (ADG), feed intake (FI), feed conversion ratio (FCR), European efficiency factor (EEF) and gain cost of the birds fed various levels of AZOMITE® were significantly improved as compared to the control. Meat characteristics results indicated that the treatments had no significant effect on dressing percent, thigh, drumsticks and breast percentage among the dietary groups. Taken together, it may be concluded that the supplementation of AZOMITE® in commercial broiler at 0.50 to 1.0% improved live weight, feed intake and feed conversion ratio of commercial broilers. Bang. J. Anim. Sci. 2019. 48 (2): 92-98

scholarly journals Digestible threonine and its effects on growth performance, gut morphology and carcass characteristics in broiler Japanese quails (Coturnix coturnix japonica)

1970 ◽  
Vol 48 (4) ◽  
Author(s):  
M.F. Rasheed ◽  
M.A. Rashid ◽  
Saima, A. Mahmud ◽  
M.S. Yousaf ◽  
M.I. Malik
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Gut Health ◽  
Feed Conversion ◽  
Villus Height ◽  
Japanese Quails ◽  
Meat Type

Threonine is the third limiting amino acid in corn-soy-based poultry diets and has an important role in body and intestinal development of chicken. Although work on threonine (Thr) in chicken is well established, information about the effects of digestible threonine (dThr) on quail performance is limited. Therefore, the current study was designed to determine the impact of increasing levels of dThr on growth performance, feed conversion ratio (FCR), gut health and carcass characteristics in meat-type quails. A total of 324 mixed-sex day-old quail were randomly allocated to three treatments with six replicates per treatment and 18 birds per replicate. There were three dietary treatments, namely control (C) with recommended levels of dThr according to the Brazilian Tables guidelines for Japanese quails: 10% dThr (C diet supplemented with 10% more dThr) and 20%dThr (C diet supplemented with 20% more dThr). At day 35 of the experiment, three birds from each pen were slaughtered. A duodenal sample was collected and preserved to evaluate gut health. The carcass characteristics were determined from the slaughtered birds. Total feed intake and average daily feed intake were higher in the C treatment than in 10% dThr. Final bodyweight (BW), weight gain and average daily gain (ADG) increased linearly. The birds fed diets supplemented with 20% extra dThr had the highest final weight and bodyweight gain (BWG) compared with those birds that were fed on C and 10% dThr supplemented diets. Feed conversion ratio was improved in 10% dThr compared with the C birds. Villus height (VH) was similar among treatments. The highest crypt depth (CD) was observed in C, followed by 10% dThr and 20% dThr. The birds fed 20% dThr had higher VH:CD than 10% dThr. The birds in the C treatment had lowest VH:CD. Carcass weights with and without giblets were higher in the 20% dThr than in the 10% dThr and C treatments. Breast mass yield (BMY) was greatest in 20% dThr compared with C and 10% dThr. It may be concluded that supplementation of Thr higher than the requirements referred to in Brazilian Tables improves growth performance and gut health of meat-type quail.Keywords: Crypt depth, mucin, performance, quail, villus height

scholarly journals Etlik Piliçlerde Karma Yeme Farklı Esansiyel Yağlar ve Karışımlarının İlavesinin Performans ve Karkas Özellikleri Üzerine Etkisi

2017 ◽  
Vol 5 (8) ◽  
pp. 964
Author(s):  
Behlül Sevim ◽  
Yusuf Cufadar
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Essential Oil ◽  
Body Weight Gain ◽  
Carcass Characteristics ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Thymus Vulgaris ◽  
Feed Conversion

This study was conducted to determine the effect of dietary supplementation of thymus (Thymus vulgaris L.), rosemary (Rosmarinus officinalis L.) and French lavender (Lavandua stoechas L.) essential oils and their mixtures on body weight and body weight gain, feed consumption, feed conversion ratio, carcass characteristics in broiler. A total of one day old 640 broiler chicks (Ross 308) were used divided into 8 groups each having five replicates, ramdomly. There were 80 chicks in each experimental group. The experimental diets were consisted of control (0 mg/kg), addition to thymus essential oil (50 mg/kg), rosemary essential oil (50 mg/kg), lavandula essential oil (50 mg/kg) tymus + rosemary (25+25 mg/kg), tymus + lavandula (25+25 mg/kg), rosemary + lavandula (25+25 mg/kg), tymus + rosemary + lavandula (16.7+16.7+16.7 mg/kg), respectively. Feed and water were provided as ad libitum. Experimental period was six weeks. The according to results that dietary different essential oil and their combinations did not significantly effect on body weight, body weight gain, feed consumption, feed conversion ratio and carcass characteristics.

Influence of soybean bioactive peptides on performance, foot pad lesions and carcass characteristics in broilers

2018 ◽  
Vol 6 ◽  
Author(s):  
M. R. Abdollahi ◽  
F. Zaefarian ◽  
Y. Gu ◽  
W. Xiao ◽  
J. Jia ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Biologically Active ◽  
Feed Conversion ◽  
Functional Protein ◽  
Inclusion Level ◽  
Poultry Diets ◽  
Foot Pad ◽  
Dietary Treatments

SummaryThe influence of different inclusion levels of a biologically active peptide derived from soybeans by enzymatic hydrolysis, on growth performance, foot pad lesions and carcass characteristics in broilers were examined in this study. Starter (1 to 21 d) and finisher (22 to 42 d) diets, based on maize and soybean meal, were subjected to seven inclusion levels of a commercial soybean bioactive peptide (SBP) product (Fortide, Chengdu Mytech Biotech Co. Ltd., Chengdu, Sichuan, China) at 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g/kg of diet. All diets were equivalent in respect of energy density, digestible amino acids and other nutrients. A total of 840, one-day-old male broilers (Ross 308) were allocated to 42 pens (20 birds/pen), which were randomly assigned to seven dietary treatments. During the starter period, there was no significant effect of SBP on weight gain and feed intake of the birds. However, a significant (P < 0.05) effect of SBP was observed for the feed conversion ratio (FCR), with SBP inclusion at 3.0 g/kg and above showing lower (P < 0.05) FCR values compared to the diet with no SBP. No effect of SBP was observed for weight gain and feed intake over the whole trial period. However, SBP inclusion tended (P = 0.06) to influence the FCR of birds. Increasing SBP inclusion level resulted in gradual decrease in FCR values, with SBP inclusion at 5.0 and 6.0 g/kg showing lower FCR values compared to the diet with no SBP. Overall, the present study suggests that dietary supplementation of SBP in broiler diets has the potential to improve FCR and to be used as a novel functional protein in poultry diets.

Growth performance and carcass characteristics of Australian prime lambs supplemented with pellets containing canola oil or flaxseed oil

2018 ◽  
Vol 58 (11) ◽  
pp. 2100 ◽  
Author(s):  
Don V. Nguyen ◽  
Bunmi S. Malau-Aduli ◽  
Peter D. Nichols ◽  
Aduli E. O. Malau-Aduli
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Canola Oil ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Flaxseed Oil ◽  
Free Access ◽  
Omega 3 ◽  
Feed Conversion ◽  
Body Conformation

The objective of this study was to investigate the effects of enriched omega-3 oil supplemental pellets, breed and gender on lamb liveweight (LWT), body conformation and carcass characteristics, and to assess the relationships between body conformation and growth under an intensive finishing condition. Sixty ewe and wether prime lambs 7 months old were randomly allocated to one of five dietary treatments: no oil inclusion (Control); 2.5% canola oil; 5% canola oil; 2.5% flaxseed oil and 5% flaxseed oil, balanced by breed (purebred Merinos (M × M) and Corriedale × Merino (C × M) and White Suffolk × Corriedale (W × C) first crosses). Lambs were individually supplemented with 1 kg pellets per day and had free access to lucerne hay and water throughout the 7-week feeding trial, after a 3-week adaptation. Dietary oil inclusion did not cause significant differences in daily feed intake, growth performance and carcass characteristics (P > 0.05). However, first-cross W × C lambs had significantly higher feed intake, chest girth and body conformation score (P < 0.05) than M × M and C × M lambs. Carcass weight, dressing percentage and fat depth of crossbred lambs were significantly higher than those of M × M (P < 0.05). Significant interactions between oil inclusion and breed on average daily gain (ADG) and feed conversion ratio were observed. There were positive and highly significant correlations among LWT, ADG and body conformation measurements (P < 0.01). These findings suggest that prime lamb producers can better manage and match their breeding goals with feed resources by supplementing first-cross C × M lambs with pellets containing 5% canola oil or feeding first-cross W × C lambs with 5% flaxseed oil pellets during the 10-week intensive finishing period.

scholarly journals Growth Performance, Nutrient Digestibility and Carcass Characteristics of Pigs Fed Diets Containing Amarula (Sclerocarya Birrea A. Rich) Nut Cake as Replacement To Soybean Meal

2021 ◽  
Author(s):  
Maggy Palesa Mabena ◽  
Moses Ratsaka ◽  
Thobela Nkukwana ◽  
Ingrid Malebana ◽  
Douglas Nkosi
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Feed Conversion ◽  
Large White ◽  
Sclerocarya Birrea

Abstract This experiment evaluated varying levels of Amarula (Sclerocarya birrea A. Rich) nut cake (ANC) on growth performance, nutrient digestibility and carcass characteristics in pigs. Thirty Large White × Landrace (LW × LR) pigs were stratified by weight (average live weight of 20 ± 5 kg) and randomly allocated to the five experimental diets that contained 0 (control), 50, 100, 150 and 200 g ANC/kg DM. Each pig served as a replicate unit, housed individually. Bodyweight, feed intake, average daily gain (ADG) and feed conversion ratio (FCR) were recorded weekly throughout the trial period. On completion of the growth trial, following a 3-day adaptation, a nutrient digestibility study was conducted over 5 days. Thereafter, pigs were fasted for twelve hours, weighed, slaughtered, and carcass samples were collected for analysis. Feed intake was not affected by dietary treatment, but ADGs were reduced at ANC levels > 15%, resulting in poor FCR. Protein digestibility was reduced at ANC levels > 15%, while ether extract and fibre levels increased. Warm and cold carcass weights were lower at ANC levels > 15, with improved meat redness and lightness. It was concluded that ANC could replace SBM in the diet of growing pigs at less than 15% inclusion level.

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