scholarly journals Effect of source and concentration of zinc on growth performance, meat quality and mineral retention in New Zealand rabbits

2021 ◽  
Vol 29 (3) ◽  
pp. 151
Author(s):  
Hector Luis-Chincoya ◽  
Jose Guadalupe Herrera-Haro ◽  
Arturo Pro-Martínez ◽  
Amalio Santacruz-Varela ◽  
Martha Patricia Jerez-Salas
Keyword(s):  
Weight Gain ◽  
New Zealand ◽  
Meat Quality ◽  
Experimental Treatment ◽  
Experimental Period ◽  
Feed Consumption ◽  
Human Consumption ◽  
Colour Parameter ◽  
Zn Concentration ◽  
Organic Source

<p>Zinc supplementation in rabbit diet favours deposition of this mineral in meat and, therefore, contributes to satisfying the daily requirements of Zn in humans that consume it. A trial was conducted to study the effect of two sources (ZnSO<sub>4</sub> and Zn-methionate) and two concentrations of Zn, along with a control (without Zn supplementation), on weight gain, meat quality and muscle retention in New Zealand White (NZW) rabbits during fattening stage. Treatments were randomly assigned to 100 NZW rabbits 40 days old, in a completely randomised experimental design using a factorial arrangement of treatments (2×2+control). The experimental period was 30 d. In each experimental treatment, weight gain, feed consumption and meat quality were recorded, as well as the retention of Zn in serum, liver, loin and hind leg. Results showed no differences (<em>P</em>&gt;0.05) in weight gain and food consumption, which can be attributed to diet-added Zn sources (ZnSO<sub>4</sub> and Zn-methionate). Food conversion was better with the organic source at the highest concentration (<em>P</em>&lt;0.05). Regarding meat quality, no differences were found (<em>P</em>&gt;0.05) in hind legs for source effect and Zn concentration, while in loin, differences (<em>P</em>=0.02) were found in the colour parameter of L* and B* when the organic source of Zn (Zn-methionate) was supplied. Most retention of Zn on the loin occurred when a concentration of 25 mg Zn kg<sup>–1</sup> of Zn-methionate was added, which could be important to provide larger amounts of Zn for human consumption.</p>

scholarly journals The Effects of Feed Color on Broiler Performance between Day 1 and 21

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1511
Author(s):  
Joseph P. Gulizia ◽  
Kevin M. Downs
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Treatment Effects ◽  
Body Weight Gain ◽  
Experimental Period ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Average Body ◽  
Average Body Weight

Two trials were conducted to determine feed color effects on broiler performance. A completely randomized design was used. Trial 1 included four treatments: control (complete broiler starter diet), red, green, and blue; and Trial 2 included four treatments: control, orange, yellow, and purple. Each trial had 4 treatments with 4 replicates (60 birds/treatment) fed to 240 male Cobb 500 broilers during a 21 d grow out. Data were analyzed using the GLM procedure. In Trial 1, there were no treatment effects on average body weight, body weight gain, and feed consumption (p > 0.05). Adjusted feed conversion for control (1.23) was less than red (1.27; p = 0.001) and green (1.26; p = 0.009), with blue (1.25; p = 0.056) tending to be different during the experimental period. In Trial 2, there were no treatment effects on average body weight, feed consumption, and adjusted feed conversion during this study (p > 0.05). Body weight gain between d 1 to 14 for purple (490.78 g/bird) was more than orange (467 g/bird; p = 0.013) and yellow (461 g/bird; p= 0.004), with control (474 g/bird; p = 0.052) tending to be different. Results indicate that these feed colors had some, albeit limited, influence on broiler performance parameters.

scholarly journals Influence of YEA-SACC 1026 Probiotic on Meat Quality in Chicken Broilers

2017 ◽  
Vol 74 (1) ◽  
pp. 64
Author(s):  
Ionel TOADER ◽  
Aurel ȘARA ◽  
Mihai BENTEA ◽  
Mirela CADAR
Keyword(s):  
Chemical Composition ◽  
Meat Quality ◽  
Experimental Period ◽  
Chicken Meat ◽  
Meat Production ◽  
Human Consumption ◽  
Important Criterion

The use of probiotics, as fodder supplement for chickens, could stimulate meat quality that is a very important criterion especially for human consumption markets. The study had in view the effects of powdery YEA-SACC 1026 probiotic on meat quality in chicken broilers. There were studied 75 meat chickens of Ross-308 hybrid grouped on three lots of 25 capita/lot during an experimental period of 42 days. In the mixed fodder of experimental lots was added powdery YEA-SACC 1026 probiotic in proportion of 0.1% in lot L1(E) and in proportion of 0.25% in lot L2(E). In the experiment end, were effected control slaughtering of 5 chickens per each lot, to establish the meat quality by trenching and meat chemical composition. After YEA-SACC 1026 probiotic administration, as fodder supplement, the chicken meat quality was improved by increasing the weight of superior quality meat in carcass. The obtained results confirm the favourable effects of probiotics on chicken meat production and its quality

Studies on Belgian Pietrain pigs 2. A comparison of growth and carcass characteristics of Pietrain used in three breed crosses with Landrace, Large White and Hampshire breeds

1972 ◽  
Vol 15 (1) ◽  
pp. 11-19 ◽  
Author(s):  
M. K. Curran ◽  
I. J. Lean ◽  
J. E. Duckworth ◽  
W. Holmes
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Consumption ◽  
Unit Weight ◽  
Large White ◽  
Lean Meat ◽  
Live Weight Gain ◽  
Breed Crosses

SUMMARY1. The growth, feed consumption per unit weight gain, carcass characteristics and some aspects of meat quality were studied in two trials with crosses derived from Landrace (L), Pietrain (P), Hampshire (H) and Large White (LW) breeds.2. In Trial 1, 96 pigs of both pure Landrace and LW(× (L♀ × P♂)♂ origin were studied up to slaughter weights of 64 and 91 kg live weight. In Trial 2, Landrace, LW♀ × (L♀ × P♂)♂ and LW ♂x (P♀x L♂)♂, (H♀ × P♂ × L♂ and (H♀ × P♂)♀ × LW♂ pigs were compared up to 91 kg live weight using 48 pigs of each type.3. All crossbred types showed better economy of production than Landrace when assessed by live-weight gain and feed consumption per unit weight gain. Their carcasses contained greater quantities of lean meat and similar quantities of rind, bone and fat than Landrace at comparable weights, but they exhibited a variable tendency to poorer meat quality. LW × (L × P) and LW × (P × L) carcasses at 91 kg live weight were shorter than Landrace; 4% and 14% of pigs in trials 1 and 2 respectively were less than the currently acceptable length of bacon pigs (775 mm). (H × P) × LW and (H×P)×L carcasses at this weight were much shorter; 34% and 38% respectively were less than 775 mm.

scholarly journals Carcass quality and economic benefit of New Zealand White rabbit bucks fed processed mucuna pruriens

2021 ◽  
Vol 48 (3) ◽  
pp. 100-110
Author(s):  
J. S. Ekpo
Keyword(s):  
Weight Gain ◽  
New Zealand ◽  
Meat Quality ◽  
Control Diet ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Mucuna Pruriens ◽  
Carcass Quality ◽  
Low Density

The concern of people about nutritional quality and healthy eating make them to reduce meat consumption due to the fear of hypercholesterolemia. Against this background, there is need to incorporate cholesterol-reducing feed stuff into diets of meat producing animals. This study was therefore carried out to evaluate the performance as well as carcass quality of rabbits fed diets containing processed Mucuna seed meal (MSM) for 84 days. A total of 45 rabbit bucks (New Zealand White) of six weeks old were divided into three treatment groups of 15 rabbits each. Each treatment group was replicated thrice with five rabbits per replicate. The rabbit groups were randomly assigned to three treatment diets in a completely randomized design: The three experimental diets were formulated such that Mucuna pruriens seed (processed by soaking and boiling) replaced maize at 0, 20 and 30% as T1, T2 and T3 respectively. T1 served as the control without Mucuna Pruriens. Data were collected on feed intake, weight gain, feed conversion ratio, carcass traits and meat lipid profile viz: total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL), very low density lipoprotein (VLDL) and high density lipoprotein (HDL). Result obtained revealed that rabbits on mucuna-based diets (T2 and T3) had significant (P<0.05) increase in feed intake and weight gain than rabbits on diet T1 (control). Similarly, carcass characteristics of the animals fed mucuna-based diets showed significant (P<0.05) increase in dressed weight, dressing percentage, cut parts (fore leg, hind leg, loin, thoracic cage) except organ (liver, kidney. heart, lungs) weights which were comparable to rabbits fed control diet. Significant (P<0.05) improvement in meat quality in terms of increase in HDL, protein, muscle, meat to bone ratio and reduction in TC, TG, LDL, VLDL and fat were obtained for the rabbit fed the mucuna-based diets. Economy of production indicated that cost of feed consumed and cost per weight gain reduced for rabbits fed MSM compared to those fed control diet. The results of the trial have shown that processed MSM can be used to substitute maize in diet up to 30% for improved performance, carcass traits and meat quality of rabbit bucks.     Les préoccupations des gens au sujet de la qualité nutritionnelle et d'une alimentation saine les font réduire la consommation de viande en raison de la crainte de l'hypercholestérolémie. Dans ce contexte, il est nécessaire d'incorporer des aliments pour animaux réducteurs de cholestérol dans les régimes alimentaires des animaux producteurs de viande. Cette étude a donc été réalisée pour évaluer la performance ainsi que la qualité de carcasse des lapins nourris à des régimes contenant des farines de graines de Mucuna transformées (le 'MSM') pendant 84 jours. Un total de 45 mâles de lapin (New Zealand White) de six semaines ont été divisés en trois groupes de traitement de 15 lapins chacun. Chaque groupe de traitement a été répliqué trois fois avec cinq lapins par réplique. Les groupes de lapins ont été assignés au hasard à trois régimes de traitement dans une conception complètement randomisée : Les trois régimes expérimentaux ont été formulés de telle sorte que les graines pruriens de Mucuna (traitées par trempage et ébullition) ont remplacé le maïs à 0, 20 et 30% comme T1, T2 et T3 respectivement. T1 a servi de contrôle sans Mucuna Pruriens. Des données ont été recueillies sur la consommation d'aliments pour animaux, le gain de poids, le rapport de conversion des aliments pour animaux, les traits de carcasse et le profil lipidique de la viande viz : cholestérol total (le 'TC'), triglycéride (le 'TG'), lipoprotéine de basse densité (le 'LDL'), lipoprotéine de très faible densité (le 'VLDL') et lipoprotéine de haute densité (le 'HDL'). Le résultat obtenu a révélé que les lapins qui suivreaient un régime à base de mucuna (T2 et T3) avaient une augmentation significative (P<0.05) de la consommation d'aliments pour animaux et du gain de poids que les lapins au régime T1 (contrôle). De même, les caractéristiques de carcasse des animaux nourris à base de mucuna ont montré une augmentation significative (P<0.05) du poids habillé, du pourcentage d'habillage, des parties coupées (jambe avant, patte arrière, longe, cage thoracique) à l'exception des poids des organes (foie, rein, cœur, poumons) comparables aux lapins nourris au régime de contrôle. Une amélioration significative (P<0.05) de la qualité de la viande en termes d'augmentation de la HDL, des protéines, des muscles, du rapport viande/os et de la réduction du TC, du TG, du LDL, du VLDL et de la graisse a été obtenue pour le lapin nourri aux régimes à base de mucuna. L'économie de production a indiqué que le coût des aliments consommés et le coût par gain de poids réduit pour les lapins nourris aux 'MSM' par rapport à ceux nourris régime de contrôle. Les résultats de l'essai ont montré que les 'MSM' transformés peuvent être utilisés pour remplacer le maïs dans l'alimentation jusqu'à 30 % par une meilleure performance, des caractéristiques de carcasse et la qualité de la viande des mâles lapins.

scholarly journals Does the 1 Gy dose of gamma radiation impact the pork quality?

2021 ◽  
Author(s):  
K Benova ◽  
P Dvorak ◽  
D Mate ◽  
M Spalkova ◽  
J Dolezalova ◽  
...  
Keyword(s):  
Meat Quality ◽  
Gluteus Medius ◽  
Quality Parameters ◽  
Whole Body ◽  
External Irradiation ◽  
Human Consumption ◽  
Affected Area ◽  
Colour Parameter ◽  
Significant Difference ◽  
Longissimus Lumborum

A nuclear accident (e.g., Fukushima), and, in particular, the transport of animals within a radiation-affected area can lead to a whole-body, or partial external irradiation, followed by oxidative stress, which could result in subsequent meat quality changes. In this experiment, live pigs were exposed to half-body irradiation by an external dose of 1.0 Gy. The caudal half of the animal’s body was irradiated. After their slaughter, samples from the muscle tissue of musculus semimembranosus and musculus longissimus lumborum et thoracis at the upper margin of musculus gluteus medius (irradiated body half) and at the 3<sup>rd</sup>–4<sup>th</sup> thoracic vertebra (non-irradiated half) were collected to determine the meat quality parameters. A significant difference (P &lt; 0.05) was observed only in the meat colour parameter (a*) in the irradiated group of pigs. If there is no internal contamination, and the half-body exposure to the external radiation dose does not exceed 1 Gy, pigs from an irradiation-affected area may be used for human consumption.

scholarly journals The effect of papaya (Carica papaya) sap supplementation in ration on performance of male New Zealand White rabbit

2008 ◽  
Vol 6 (1) ◽  
pp. 16-21
Author(s):  
PRAMUWIDHI PEKIK WICAKSONO ◽  
Y.B.P. SUBAGYO ◽  
LUTOJO LUTOJO
Keyword(s):  
Weight Gain ◽  
New Zealand ◽  
Feed Efficiency ◽  
Carica Papaya ◽  
Zealand White Rabbit ◽  
Daily Weight Gain ◽  
Feed Consumption ◽  
Feed Conversion ◽  
New Zealand White Rabbit ◽  
Randomized Design

Wicaksono PP, Subagyo YBP, Lotojo. 2008. The effect of papaya (Carica papaya) sap supplementation in ration on performance of male New Zealand White rabbit. Biofarmasi 6: 16-21. This research aimed to determine the effect of papaya (Carica papaya) sap supplementation on male New Zealand White rabbit performance. The research was conducted at Balai Pembibitan dan Budidaya Ternak Non Ruminansia (BPBTNR), located in Balekambang, Surakarta from 23 April to 18 June 2007. This research used 16 male New Zealand White rabbits divided into four treatments and four replicates, each repetition used a single rabbit. The design used was a Completely Randomized Design (CRD) with unbalanced data. The treatment given was 60% forage, 40% concentrate with papaya (Carica papaya) sap supplementation in feed, consisted of without papaya sap (P0), feed with papaya sap 0.2 g/rabbit (P1), feed with papaya sap 0.4 g/rabbit (P2), and feed with papaya sap 0.6 g/rabbit (P3). The research variables observed were feed consumption, daily weight gain, feed conversion, and feed efficiency. The results of research showed that papaya sap supplementation up to 0.6 g/rabbit did not increase feed consumption, daily weight gain, feed efficiency and did not decrease feed conversion.

scholarly journals Upaya Peningkatan Kualitas Daging Ayam Broiler Melalui Pemberian Ekstrak Meniran

2017 ◽  
Vol 1 (1) ◽  
pp. 46
Author(s):  
Puji Astuti ◽  
Heru Suripta ◽  
Lusia Risyani PM
Keyword(s):  
Drinking Water ◽  
Body Weight ◽  
Weight Gain ◽  
Meat Quality ◽  
Methanol Extract ◽  
Body Weight Gain ◽  
Feed Consumption ◽  
Feed Additive ◽  
Phyllanthus Niruri

This research was conducted to evaluate the effects of extracts Phyllanthus niruri extracted with water and methanol as a substitute for commercial feed additive to determine the impact on the meat quality of broilers. The research use 200  broilers  which were devided  into four treatments and four replication: 1) Control, broilers were given drinking water without Phyllanthus niruri extract,  2) broilers were given  feed additive commercially (bacitracin), 3) broilers were given methanol extract   as much as  40 mg / l; and 4) broilers were given water extract  as much as of 40 mg / l of drinking water. Each replication consisted of  10  broilers. At the end of the research, four  broilers from each treatment were cut. The research used the completely randomized design. The variables observed were  performance (feed intake, body weight gain and feed conversion), characteristics of the carcass (carcass percentage, meat and bone ratio, and percentage of abdominal fat), and the quality of the meat (fat, cholesterol, and unsaturated fatty acids). Data were analyzed variance analysis. The results showed that feed consumption (84,80 vs 89,31; 89,16; 9163 g/head/day), body weight gain (55,87 vs 59,57; 59,34; 59,70 g/head/day), carcass characteristics, and meat quality were influenced by Phyllanthus niruri extract. Water extracts provide better meat quality than the methanol extract.

scholarly journals Protease inclusion in plant- and animal-based broiler diets: Performance, digestibility and biometry of digestive organs

2020 ◽  
Vol 50 (2) ◽  
pp. 291-301
Author(s):  
D.P. Carvalho ◽  
N.S.M. Leandro ◽  
M.A. Andrade ◽  
H.F. De Oliveira ◽  
M.F. Pires ◽  
...  
Keyword(s):  
Weight Gain ◽  
Experimental Period ◽  
Protein Digestibility ◽  
Nutrient Digestibility ◽  
Feed Consumption ◽  
Food Conversion ◽  
Feed Conversion ◽  
Exogenous Enzyme ◽  
Final Weight ◽  
Endogenous Enzymes

The addition of protease to broiler diets may complement the action of endogenous enzymes and improve protein digestibility. Here, the authors evaluated the effect of adding protease to broiler diets that contained animal-based meal on bird performance, digestibility, and biometry of digestive tract organs. Four treatments, which contained animal- or plant-based meals with or without supplementary protease were compared, namely basal vegetable feed (BVF), BVF + protease (BFP), basal vegetable feed + animal by-product meal (BFA), and BFA + protease. In the first experiment, 320 one-day-old Cobb 500® chicks were allocated to eight replicates with 10 birds per replicate. The experimental period was seven days, and nutrient metabolizability was evaluated. In the second experiment, 720 one-day-old Cobb 500® chicks were assigned to treatments in a similar manner, with six replicates and 30 birds per replicate, but the experimental period was 42 days. Significant differences (P <0.05) were observed between treatments for nutrient digestibility, weight gain, feed consumption, average final weight, food conversion, viability, and biometry of the pancreas. Treatments with animal-based meals had the highest digestibility. Birds fed these meals grew faster in the pre-starter phase and consumed less feed between 1 and 21 days. However, between 1 and 42 days old, broilers fed plant-based diets had better feed conversion, and the group that did not receive protease supplementation had a better liveability rate.Keywords: additive, exogenous enzyme, nutrition, organ biometry, poultry

scholarly journals Efficiency of soy protein concentrate in diets of weaned piglets

2008 ◽  
Vol 53 (No. 1) ◽  
pp. 9-16 ◽  
Author(s):  
J. Šiugždaité ◽  
A. Jerešiúnas ◽  
R. Stankevičius ◽  
J. Kulpys
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Soy Protein ◽  
Fish Meal ◽  
Experimental Period ◽  
Feed Consumption ◽  
Soy Protein Concentrate ◽  
Protein Concentrate ◽  
Weaned Piglets

The aim of this experiment was to determine the influence of “HP 300” soy protein concentrate (SPC) on the wellness, intestine microflora, growth rate and feed consumption compared with that of fish meal in weaned piglets. To create a balanced experiment on breed, gender, age and weight, two groups of 19 weaned piglets were composed. The first group was a control while the second group was experimental. The experiment was divided into two periods: the first period lasted for 27 days while the second lasted for 14 days. The duration of the experiment was 41 days in total. The composition of feed and sustenance were the same in both periods. The piglets from the second group receiving the feed without fish meal gained 69 g or 18.4% more (<I>P</I> > 0.05) weight on average than the piglets from the first group during the whole period. No essential differences in feed consumption per 1 kg of weight gain between the groups were identified during the whole period. While examining the amount of enterobacteria in faeces it was estimated that the amount of enterobacteria in the faeces of piglets of the second group decreased during the whole experimental period. At the end of experiment the amount of enterobacteria in the faeces of piglets of the second group gradually decreased by 12% compared with the enterobacteria amount at the start of experiment. The amount of enterobacteria in the faeces of piglets of the first group also decreased by 12%. However, the amount of enterobacteria in the faeces of piglets of the first group decreased more sharply than in piglets of the second group.

scholarly journals Productive parameters of growing lambs fed an extruded ration with different roughage: concentrate ratios

2019 ◽  
Vol 40 (6Supl3) ◽  
pp. 3641
Author(s):  
Karla Alves Oliveira ◽  
Gilberto de Lima Macedo Júnior ◽  
Carolina Moreira Araújo ◽  
Marco Tulio Santos Siqueira ◽  
Maria Júlia Pereira de Araújo ◽  
...  
Keyword(s):  
Weight Gain ◽  
Dry Matter ◽  
Subcutaneous Fat ◽  
Great Influence ◽  
Carcass Characteristics ◽  
Experimental Period ◽  
Body Growth ◽  
Dry Matter Intake ◽  
Feed Consumption ◽  
Average Weight

Feed consumption has a great influence on the growth and performance of animals since the intake of dry matter supplies the quantity of nutrients that are necessary to meet the maintenance and production requirements of these animals. The objective of this study was to evaluate the dry matter intake, body growth, weight gain and carcass characteristics (by ultrasonography) of lambs fed an extruded ration at different roughage (R): concentrate (C) ratios. Thirty mixed race (Santa Inês x Dorper) lambs, aged 3 months and with an average weight of 20 kg, were used. The treatments consisted of an extruded ration in 30R:70C and 70R:30C ratios, completely randomised to 2 treatments and 15 replicates. The means of the variables were evaluated using a Tukey test and a regression at the 5% significance level. Dry matter intake (DMI), weight gain, body growth, evaluated through biometric measurements, and carcass characteristics, evaluated by ultrasonography, were assessed. There was a reduction of DMI in relation to body weight during the experimental period, with lower DMI amongst the animals in the 30R:70C treatment. There was a quadratic effect for the growth variables hindlimb height, forelimb height, body length, thoracic and barrel circumference over time, indicating that the animals presented adequate body growth, with intense development during the experimental period and stabilisation at the end of the experiment. There was no difference in the animals' weight gain, with an average daily gain of 182.79 g day-1. There was a difference in carcass characteristics throughout the evaluation period, with a larger loin eye area, body condition score and subcutaneous fat thickness at the end of the experimental period. The use of an extruded ration with a 30% roughage and 70% concentrate ratio promotes better feed efficiency in lambs, since it achieved the same weight gain and body development with lower dry matter intake.

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