scholarly journals Research on the Influence of the Light and Sexing on Growth Performance and Slaughter Results at Young Quails from Mixed Baloteşti Population of Eggs-Meat

2017 ◽  
Vol 74 (1) ◽  
pp. 15
Author(s):  
Lucian IONITA ◽  
Elena POPESCU-MICLOSANU ◽  
George NICA ◽  
Cornel Octavian PANA
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Conversion Rate ◽  
Live Weight ◽  
Control Group ◽  
Average Weight ◽  
Feed Conversion ◽  
Feed Conversion Rate ◽  
Average Weight Gain ◽  
Experimental Group

The purposes of determining the influence of the light and sexing on growth performance and slaughter results atyoung quails from Balotesti population, was organized an experiment on 150 quails, betwen age of 28 and 70 days. The chicks were divided into two groups (control and experimental), and growth and slaughter performance were determined separately by sex. Have studied 2 lighting programs, a program of continous lighting with photoperiod duration of 16 hours (16 L + 8 N, control group) and a program with lighting with asymetric hours intervals with photoperiod duration of 16 hours (10L+2N+6L+6N, experimental group).Males and females from the experimental group were recorded average performance of growth high during the period 28 - 70 days. Live weight at age of 70 days was higher with 7.54 %, average weight gain was higher with 14.86 % and feed conversion rate was lower with 13.51 % at males from experimental group compared to males from the control group. Also, the live weight at the age of 70 days was higher with 18.09 %; average weight gain was higher with 35.12 %, while feed conversion rate was reduced with 30.08 % on females from the experimental group compared to females from the control group.The results of the slaughter at 70 days were superior in the caseof females from the both groups versus males. The average weight of the carcase was higher with 17.53 % in case of the females than that of males from the experimental group, and the carcase yield was 65.37 % at the females and 65.56 % for males. Also, the average weight of the carcase was higher with 5.08 % in case of females compared to that males from the control group, and the carcase yield was 64.20 % to females 66.70 % on males.Superior results recorded in the case of females and males from the experimental group recommended the program of lighting with asymmetric hours intervals in the growth of youth quail. Also, the higher slaughter results recorded in the case of females of the two groups recommended them in the meat production through a broiler of quail that combine advantages in the production of both males and females. 

scholarly journals Growth performance, carcass indices and blood profile of broiler chickens fed tiger nut residue

2021 ◽  
Vol 6 (2) ◽  
pp. 50-57
Author(s):  
C. A. Essien ◽  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Average Weight ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Blood Profile ◽  
Final Weight ◽  
Average Weight Gain

A total of two-hundred-and-forty day old broiler chicks were used to study the response of broiler birds to diets containing graded levels of tiger nut residue (TNR) as a replacement for maize. The diets consisted of 0, 10, 20 and 30% of TNR as a replacement for maize as T1 (control), T2, T3 and T4 respectively. The birds were allotted to four dietary treatments of 4 replicates each containing 60 and 15 birds respectively in a completely randomized design. The data obtained from the experiment were subjected to one - way analysis of variance. The results showed that average weight gain (AWG) and final weight gain (FWG) were high for birds fed 10% TNR and increased numerically than the 0, 20 and 30% groups at the starter phase. In the finisher phase the average weight gain (AWG) and final weight gain (FWG) followed the same trend. Feed intake was not significantly affected by the diet at the starter and finisher phases. In the starter phase the T1 (control) recorded the best and the lowest feed conversion ratio but in the finisher phase, the best feed conversion ratio was observed in T2. The TNR inclusion had no significant (p˃0.05) effect on live weight, dressed weight, dressing percentage, cut-parts and organs of the birds. The haematological parameters were not significantly (p˃0.05) affected by the diets. All the biochemical parameters determined; serum protein, albumin, globulin, urea, creatinine, ALT, AST, cholesterol and triglyceride were not significantly (p˃0.05) affected by the treatment diet. It was concluded that tiger nut residue (TNR) as a replacement for maize at a 30% level of inclusion did not cause any deleterious effects on the performance, carcass and blood profiles of broilers

scholarly journals Effect of oligochitosan supplementation on growth and innate immunity of striped catfish (Pangasianodon hypophthalmus) at pond culture

2021 ◽  
Vol 7 (2) ◽  
pp. 32-37
Author(s):  
Ngoc Duy Nguyen ◽  
Van Phu Dang ◽  
Anh Quoc Le ◽  
Kim Lan Nguyen Thi ◽  
Quoc Hien Nguyen ◽  
...  
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Control Group ◽  
Average Weight ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Pangasianodon Hypophthalmus ◽  
Pond Culture ◽  
Striped Catfish ◽  
Average Weight Gain

Oligochitosan (COS) was prepared by gamma Co-60 irradiation of chitosan/H2O2 solutions and mixed with cornstarch to form the powder with content of 100 000 mg COS/kg. The striped catfish (P. hypophthalmus) was fed with diets containing 100 mg COS/kg feed for 9 months at pond culture. The effects of COS supplementation on growth performance, feed conversion ratio (FCR) and survival rate in striped catfish were investigated. The results indicated that the growth performance and survival rate of striped catfish fed with 100 mg COS/kg were significantly improved and the FCRdecreased. The average weight gain, survival rate and FCR of striped catfish fed with diets containing COS were 971 ± 85 gram, 83.19 ± 0.35 % and 1.477 ± 0.013 in comparison with 896 ± 78 gram, 78.43 ± 0.64 % and 1.578 ± 0.038 of control group, respectively. Thus, COS can be potentially utilized as immunostimulants and growth promoter for aquaculture.

scholarly journals EVALUATION OF FEEDING RATES IN THE PRODUCTION OF LITOPENAEUS VANNAMEI SHRIMP USING ARTIFICIAL SUBSTRATES

2018 ◽  
Vol 19 (0) ◽  
Author(s):  
César Rocha Nunes Antunes ◽  
Carlos Alberto da Silva Ledo ◽  
Clóvis Matheus Pereira ◽  
José dos Santos
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Litopenaeus Vannamei ◽  
Conversion Rate ◽  
Feeding Rate ◽  
Artificial Substrates ◽  
Average Weight ◽  
Feeding Rates ◽  
Feed Conversion ◽  
Feed Conversion Rate

Abstract The objective of this study was to evaluate the the influence of feeding rate and different artificial substrates on both the water quality and growth performance of Litopenaeus vannamei shrimp. The experimental design was randomized blocks with five treatments and four replicates, with a density of 30 shrimp m-2 and mean weight of 2.8 g. The experiment lasted 49 days, and during this period, artificial substrates did not influence the water quality. The increase in the feeding rate influenced the dissolved oxygen of treatments. The final average weight, average final length, final biomass, productivity, and feed conversion rate showed significant differences (p > 0.05). The best food conversion factor was provided by the treatment with a feeding rate of 2%. The treatment with a feeding rate of 4% of biomass showed the best growth performance, except for the feed conversion rate. Results showed that for the percentage of 25% of the area of artificial substrates, there is an optimum feeding rate of between 5.13% and 5.54% of shrimp biomass, resulting in maximum production.

scholarly journals Growth performance and haematological characteristics of pullet chickens fed different feed forms supplemented with or without Oyster mushroom (Pleurotus ostreatus)

2021 ◽  
Vol 48 (5) ◽  
pp. 203-212
Author(s):  
C. Akomah ◽  
O. M. Sogunle ◽  
O. A. Adeyemi ◽  
A. M. Bamgbose
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Conversion Ratio ◽  
Oyster Mushroom ◽  
Average Weight ◽  
Feed Conversion ◽  
Randomized Design ◽  
Final Weight ◽  
Completely Randomized Design ◽  
Average Weight Gain

In a bid to decrease cost of production and increase performance in poultry, the study aimed at determining the growth performance and haematological characteristics of pullet chicken fed different feed forms supplemented with or without oyster mushroom (OM), three hundred and twenty (320) day old Harco Black pullet chicks were brooded for five weeks before they were allocated based on weight equalization on the basis of feed forms (mash and pellet) and OM supplementation (without and with 1g of OM per kg of feed) into four (4) treatments for an experiment which lasted for eleven weeks. Each treatment consisting of 80 birds was replicated eight (8) times with ten (10) birds per replicate. Data collected were arranged in a 2 × 2 factorial layout and subjected to Analysis of Variance in a Completely Randomized Design. Final weight, average weight gain and average feed intake in the grower phase were significantly (p<0.05) higher (1244.69g, 11.13g and 106.11 g) in birds given pelletized feed and lower (1146.25g, 9.27g and 105.08 g) in birds fed mash. Also, PCV, WBC, and Hb obtained in the starter phase were significantly (p<0.05) higher (30. 00%, 2.70 x 10 /l and 10.10 g/dl, respectively) in pullet chicken fed diet supplemented with oyster mushroom than those (26.75%, 2.12 x 10 /l and 8.85 g/dl, respectively) recorded by birds fed diets without oyster mushroom. Therefore, improved weight gain, feed conversion ratio, and immunity can be achieved by feeding pullet chickens with pelletized feed supplemented with oyster mushroom.     Dans le but de diminuer les coûts de production et d'augmenter les performances des volailles, l'étude visait à déterminer les performances de croissance et les caractéristiques hématologiques de poulettes nourries de différentes formes d'aliments supplémentées avec ou sans pleurotes (MO), trois cent vingt (320) jours de vieux poussins de poulettes Harco Black ont été couvés pendant cinq semaines avant d'être répartis sur la base d'une égalisation de poids sur la base des formes d'aliments (purée et granule) et d'une supplémentation en MO (sans et avec 1 g de MO par kg d'aliment) en quatre (4) traitements pour une expérience qui a duré onze semaines. Chaque traitement composé de 80 oiseaux a été répliqué huit (8) fois avec dix (10) oiseaux par répliquant. Les données recueillies ont été organisées selon une disposition factorielle 2 × 2 et soumises à une analyse de la variance dans un plan complètement randomisé. Le poids final, le gain de poids moyen et la prisealimentaire moyenne pendant la phase de croissance étaient significativement (p<0,05) plus élevés (1244,69 g, 11,13 g et 106,11 g) chez les oiseaux ayant reçu des aliments granulés et inférieurs (1146,25 g, 9,27 g et 105,08 g) chez les oiseaux. oiseaux nourris de purée. De plus, les PCV, GB et Hb obtenus lors de la phase de démarrage étaient significativement (p<0,05) plus élevés (30,00 %, 2,70 x 109/l et 10,10 g/dl, respectivement) dans le régime alimentaire des poulettes supplémentées en pleurotes que ceux (26,75 %, 2,12 x 109/l et 8,85 g/dl, respectivement) enregistrés par des oiseaux nourris avec des régimes sans pleurotes. Par conséquent, une amélioration du gain de poids, du taux de conversion alimentaire et de l'immunité peut être obtenue en nourrissant des poulettes avec des aliments granulés complétés aux pleurotes.

scholarly journals Study on some biologcal performance of mule ducks with discontinued probiotic treatment

2020 ◽  
Vol 18 (4) ◽  
pp. 328-333
Author(s):  
D. Penkov ◽  
M. Petkova ◽  
P. Petkova
Keyword(s):  
Weight Gain ◽  
Research Study ◽  
Live Weight ◽  
Control Group ◽  
Feed Conversion ◽  
Negative Results ◽  
Three Phase ◽  
Probiotic Treatment ◽  
Genus Lactobacillus ◽  
Experimental Group

Aim: To establish the effect of the new for Bulgaria probiotic ProMixAn Forte® in discontinued treatment of mule ducks for the first 28 days, when reared up to 72 days of age. Material and Methods: A research study was carried out with two groups of 50 female ducks each. The ducks were reared under a three-phase feeding regime, given the same feed, the forage of the experimental group being supplemented with the probiotic from 1 to 28 days of age (starter), after which the probiotic was stopped. Results: After 14 days, the experimental ducks showed significantly higher weight gain (5% – 9% in average for the separate periods), the tendency continuing for 15 days after stopping the probiotic (43 days of age), after which the weight gain decreased by more than 4 times compared to the control group. After 56-th day of age, the experimental ducks had a higher growth rate than the control, but they could not compensate for the lag. At the end of the period, the experimental fowl showed 17% lower final live weight compared to the untreated. The results of the feed conversion ratio (FCR) to produce a kg of live weight were analogous, but opposite in value. FCR was 8 to 13% lower in the experimental birds from 14 to 43 days of age, over 4.5 times higher from 43 to 57 days and 40% lower from 57 to 72 days, thus the negative results in the previous period were compensated. The differences in the separate periods were statistically significant. Conducted microbiological examination of caecum and fresh droppings showed that on the day of discontinuing the probiotic treatment, the ratio of lactic acid to coli bacteria in the experimental group was in favour of the genus Lactobacillus, while 4 weeks later it changed in favour of the coli bacteria.

scholarly journals The effect of neem (Azadirachta indica) leaf meal on the growth performance and carcass characteristics of broiler chickens

2015 ◽  
Vol 42 (2) ◽  
pp. 141-150
Author(s):  
A. A. Ayoola ◽  
L. T. Egbeyale ◽  
D. A. Ekunseitan ◽  
A. V. Adegoke ◽  
O. P. Adeyeri
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Azadirachta Indica ◽  
Broiler Chickens ◽  
Growth Parameters ◽  
Carcass Traits ◽  
Control Group ◽  
Average Weight ◽  
Leaf Meal ◽  
Average Weight Gain

A feeding trial was conducted for 56days to investigate the effect of neem (Azadirachta indica) leaf meal on the growth performance and carcass traits of broiler chickens. The neem leaf meal was used in replacing parts of wheat offal in the diets of 192 day-old broiler chickens fed ad libitum at 0.1, 0.2 and 0.3% levels of inclusion. The experimental birds were randomly distributed into four treatments. Each treatment was sub-divided into three replicates of sixteen (16) birds. Medications were administered only to the birds in treatment 1(control group) while vaccination was administered across the treatment during the course of the experiment. Growth parameters were taken on weekly basis and data obtained were subjected to one way analysis of variance (ANOVA) in a completely randomized design. There was a significant (P<0.05) effect of varying dietary inclusion of NLM only on average weight gain among the birds at the starter phase. Groups fed 0.3% NLM recorded the highest average weight gain (430.63g) as against 421.00, 392.57 and 394.97g recorded for the control, 0.1% and 0.2% NLM groups, respectively. Neem leaf meal had nosignificant (P<0.05) effect on broiler performance at the finisher phase across the treatment groups. Mortality was not affected (P>0.05) at any of the growth phases. Carcass traits; cut-parts (except neck) and organs showed no influence (P>0.05) of NLM inclusion. It can then be recommended that the neem leaf meal inclusion up to 0.3% in the diets of the broiler chickens can be used as growth promoters during the chick phase of growth.

scholarly journals Performance and intestinal development of chicks submitted to different rations and different types of incubation

2021 ◽  
Vol 15 (2) ◽  
pp. 154-161
Author(s):  
Eliete Souza Santana ◽  
José Neto Cassiano de Camargo ◽  
Michele Laboissière ◽  
Roberto Moraes Jardim Filho
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Block Design ◽  
Phase 1 ◽  
Live Weight ◽  
Experimental Unit ◽  
Average Weight ◽  
Intestinal Development ◽  
Feed Conversion ◽  
Feed Processing

The objective of this work was to evaluate the effects of two types of incubation and two types of feeding on the performance of chickens and intestinal development of chicks during the pre-starter phase (1 to 7 days of age). One-year-old male Ross® chicks were used. The experimental design was a randomized complete block design, in a 2x2 factorial design, with two types of feed processing (bran and micropelleted) and two types of incubation machines (single and multiple stage), totaling four treatments, with four treatment repetitions each. Twelve birds per experimental unit were used, totaling 192 animals. Performance evaluations were conducted, such as mean weight, weight gain, feed intake, feed conversion, bowel weight and size, and percentage of intestine in relation to live weight. Histomorphometric tests on the height of the villi and depth of the duodenal crypts were also performed. The two incubation machines did not influence any of the analyzed variables. Even though both had the same composition, the micropelleted feed resulted in positive gains for the performance variables: average weight, weight gain, feed intake, and feed conversion when compared to the meal, but was unable to significantly influence the morphometric measurements of the duodenum of chicks in the pre-starter phase.

CONVERSION OF NUTRIENTS AND FEED ENERGY INTO MEAT PRODUCTS DURING FATTENING OF YOUNG KALMYK BREED IN YAKUTIA

2020 ◽  
Vol 15 (5) ◽  
pp. 719-724
Author(s):  
I.I. Sleptsov ◽  
◽  
A.A. Martynov ◽  
Keyword(s):  
Dietary Protein ◽  
Conversion Rate ◽  
Meat Products ◽  
Live Weight ◽  
Control Group ◽  
Food Protein ◽  
Meat Productivity ◽  
Experimental Group

The article presents the results of studies of the bioconversion of nutrients and feed energy into meat products when fattening young Kalmyk breed in Yakutia. The studies were carried out on the basis of the SCHPK Soloyun Megino-Kangalassky region. The experiment was organized on Kalmyk gobies fed from 17 to 18 months of age. For the experiments, 2 groups of animals were formed, which were divided into control and experimental groups. The control group consumed the main diet, the experimental group additionally consumed 200 g of Suntarsky zeolite per head. The main diet of animals by structure consisted of meadow hay 46%, haylage – 22% and mixed fodder 32% or 11.95 ECU per day. During the experiment, the live weight of the animals was almost identical. At the end of fattening, the animals of the control group yielded to the bulls of the experimental group by 3.5%. It was found that the gobies of the experimental group had higher indicators of meat productivity, which affected bioconversion. The analysis showed that the control group of bulls yielded to the experimental group in terms of pulp by 26.9%, in the deposition of food protein by 13.6%. The conversion rate of protein into food protein in the control group was 12.0%, and in the experimental group the indicator was 21.3%. The yield of dietary protein in the control group was 8.08 g, which is 33.6% less than in the experimental group. Thus, the calculation of bioconversion showed that the animals of the experimental groups, which additionally consumed Suntarsky zeolite, had a higher ability to transform nutrients and feed energy into meat products.

Enrichment strategy of object combination on the behaviour of growing pigs

2020 ◽  
Vol 46 (4) ◽  
pp. 9-15
Author(s):  
A. A. Famakinwa ◽  
O. A. Adebiyi ◽  
T. O. Bankole ◽  
P. O. Idahosa
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Repeated Measures ◽  
Environmental Enrichment ◽  
Growing Pigs ◽  
Performance Data ◽  
Average Weight ◽  
Feed Conversion ◽  
Large White ◽  
Average Weight Gain

This study was carried out to determine the effect of object combination as environmental enrichment on behaviour of growing pigs. Thirty-six (36) crossbreed (Large White X Landrace) growing pigs with average weight of 34-36Kg were allotted randomly into four treatments, replicated three times in a completely randomized design. The four treatments were; Control (without enrichment), PRope (2 pieces of polyester rope), treatment SWood (2 pieces of soft wood) and treatment PRope+SWood (1 piece of soft wood and 1 piece of polyester rope). Behavioural observations were monitored by CCTV and recordings were made for 6 hours/day and 3days/week. At the end of the experiment, data collected includes average feed intake and average weight gain while feed conversion ratio was calculated. Likewise, behavioural observations; enrichment use, general activities, pen manipulation and pen-mate manipulation were observed. Behavioural data were analyzed using repeated measures analysis of variance (ANOVA) while performance data were analysed using one-way ANOVA. Performance data were significantly influenced (P<0.05) by enrichments for all the parameters measured. PRope+SWood had the highest value for the final weight (50.63kg), average weight gain (15.95kg) and average feed intake (56.61kg) while PRope had the highest FCR 4.18). Penmate manipulation (10.48%), pen manipulation (19.02%) and general activities (14.62%) were lower and significantly better for PRope+SWood compared to PRope and SWood and the highest interaction with enrichment objects was observed in the PRope+SWood (55.88%). It can be concluded that the use of combination of enrichment objects enhanced the performance and behaviour of pigs.

scholarly journals The use of amaranth (genus AmaranthusL.) in the diets for broiler chickens

2012 ◽  
Vol 51 (No. 7) ◽  
pp. 399-407 ◽  
Author(s):  
B. Pisarikova ◽  
Z. Zraly ◽  
S. Kracmar ◽  
M. Trckova ◽  
I. Herzig
Keyword(s):  
Broiler Chickens ◽  
Live Weight ◽  
Control Group ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Control Groups ◽  
Broiler Performance ◽  
Amaranth Grain ◽  
Percentage Yield ◽  
Experimental Group

The objective of our study was to test amaranth grain or dried biomass in the diet for broiler chickens as a resource of protein replacing animal protein. Further, the effect of amaranth on broiler performance, carcass characteristics and meat quality were assessed in a feeding trial. The experimental groups of broilers were fed feed mixtures with crude amaranth grain (AC), heat processed amaranth grain (AP) or dried above-ground biomass (AB). Control groups (C) received the diet containing animal proteins. The results obtained in the experimental groups of broiler chickens can be compared to the control group in all the production indicators under investigation. On day 42 of the experiment, live weight (g) of female broilers ranged from 2 205.1 &plusmn; 152.5 (AP) to 2 254.0 &plusmn; 136.5 (C), and that of male broilers from 2 375.1 &plusmn; 233.0 (AC) to 2 506.0 &plusmn; 286.0 (C). Feed conversion ranged from 1.80 kg in control group of male broiler chickens to 1.91 kg in experimental group of male broilers (AB). Percentage yield in female broiler chickens ranged from 70.8 &plusmn; 1.74 (AB) to 72.4 &plusmn;3.34(AC) or 72.4 &plusmn; 1.98 (C), and in male broilers from 72.8 &plusmn;3.55(AP) to 75.1 &plusmn;2.44(AB). Our results showed that amaranth can fully replace meat-and-bone meals in the diets for broiler chickens.

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