scholarly journals The Effect of Growth Rate on Some Beef Performance Characteristics of Czech Fleckvieh Heifers

2015 ◽  
Vol 63 (4) ◽  
pp. 1095-1100
Author(s):  
Jiří Andrýsek ◽  
Milan Večeřa ◽  
Jana Javorová ◽  
Milena Velecká ◽  
Daniel Falta ◽  
...  
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Fat Deposition ◽  
Performance Characteristics ◽  
Carcass Weight ◽  
Daily Weight Gain ◽  
Group Iii ◽  
Group I ◽  
Group A ◽  
Daily Gain

The objective of this study was to determine the effect of growth rate on some beef performance characteristics in Czech Fleckvieh heifers. Growth performance characteristics included age at slaughter (months) and daily weight gain (g). The observed beef performance characteristics were carcass weight, conformation class (SEUROP) and external fat deposition. The experimental group consisted of 480 heifers. The animals were assigned into three groups (A, B, C) based on age at slaughter. Group A consisted of 68 animals with the age at slaughter 15–21 months, group B 296 animals, age 22–28 months and group C 116 animals, age 29–35 months. A greater age at slaughter was significantly associated with a greater carcass weight which grew from 250.78 kg in group A to 317.69 kg in group C. The net weight gain decreased with age from 424.06 g in group A to 346.41 g in group C, the conformation improved from 4.46 in group A to 4.17 in group C and the external fat deposition increased from 2.5 in group A to 2.78 in group C. The dataset was again split into three groups differing in the daily weight gain (I, II, III). Group I consisted of 120 heifers with the daily gain up to 599 g, group II 303 animals with the daily gain of 600–799 g and group III only 57 animals with the gain of 800 g and more. A growing weight gain was significantly associated with a greater carcass weight (from 260.40 kg in group I to 338.66 in group III), a greater net weight gain (from 306.29 g in group I to 491.45 g in group III), improved conformation (from 4.75 in group I to 3.70 in group III) and the fat deposition was greater, too (from 2.35 in group I to 2.89 in group III).

scholarly journals A comparison of carcass proportions in Czech Pied and Montbeliarde bulls with a high carcass weight

2011 ◽  
Vol 50 (No. 3) ◽  
pp. 109-115 ◽  
Author(s):  
G. Chládek ◽  
J. Žižlavský ◽  
J. Šubrt
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Live Weight ◽  
Lower Proportion ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Daily Weight Gain ◽  
Breed Differences ◽  
Carcass Conformation

The aim of the experiment was to compare the carcass composition of 20 Montbeliarde bulls (M) and 20 Czech Pied bulls (C). The carcass weight of the animals in one group varied minimally and was about 380 kg. The Montbeliarde bulls showed a higher growth rate, expressed by a significantly lower (P < 0.01) age at slaughter (562.6 vs. 626 days) while the live weight (682.9 vs. 690.6 kg) and carcass weight (380.4 vs. 382.6 kg) were comparable, which resulted in a significantly higher (P < 0.01) daily weight gain (1.142 vs. 1.045 kg) and net weight gain (0.676 vs. 0.615 kg). The Montbeliarde bulls showed a greater (P < 0.05) height at rump (144.0 vs. 140.2 cm), worse carcass conformation according to SEUROP (3.24 vs. 2.84), lower proportion of forequarter (44.7 vs. 45.7%) and higher proportion of hindquarter (55.3 vs. 54.3%). As for the carcass composition, no significant inter-breed differences were found in weights and proportions of shanks, meat trimmings, separable fat, bones, round, loin, filet, flank with rib, flank, shoulder and chuck. The Montbeliarde bulls had a significantly lower (P < 0.05) weight and proportion of neck (10.1 vs. 11.1 kg and 5.4 vs. 5.9%) and weight of brisket and rib (17.6 vs. 18.7 kg) and proportion of brisket and rib (9.4 vs. 9.9%, P < 0.01).    

scholarly journals Effect of Using Zornia glochidiata (shelini) Meal in Replacement of Wheat Bran on Lamb Performance and Feeding Cost Decreasing

2021 ◽  
pp. 123-126
Author(s):  
Idris Idris Adam ◽  
Saed Kiir Mohamed Tagi ◽  
Mohamed Abdalla Suleiman Eshag ◽  
Hammad Dahia Salah Basar ◽  
Jadalla Jumaa Barram ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Wheat Bran ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Daily Weight Gain ◽  
Group Iii ◽  
Group I ◽  
Group Ii ◽  
The Cost

This trial was aimed to study the effects of replacing wheat bran with different levels of Zornia glochidiata meal on feed intake, general performance of Desert lambs and feeding cost decreasing. Twelve lambs of four months old and weighing 19.500 kg +500g were divided into three groups each with four animals. Feed intake and body weight change were monitored every ten days up to fifty days. The data were statistically analyzed via analysis of variance and the differences among means were detected least significance (LSD) test. The results indicated that voluntary dry matter intake significantly (P<0.05) increased in the group that consumed a ration with 26% Zornia glochidiata meal (II) followed by those were on a ration with wheat bran only (I) and lastly that had a ration with 42% Z. glochidiata (III). Feed intake was 1090, 970 and 910 for group II, I and III, respectively. Similarly body weight gain was significantly (P<0.05) higher in group II, (6.1kg/50 days) followed by group I (4.9 kg/50 days) and group III with 4.3 kg/50 days. The daily weight gain was 98, 122, 89 g when the lambs consumed rations with 0.00, 26 and 42 % of Z. glochidiata meal, respectively. The cost of kilogram of the first ration was 6.8 SDG when only wheat bran was used, and it decreased to 5.7 SDG when 26% wheat was replaced by Z. glochidiata meal and when Z. glochidiata meal was increased to 41% the cost was further decreased to 5 SDG.

scholarly journals Effect of Zinc Source and Level on Growth Performance and Zinc Status of Weaned Piglets

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2030
Author(s):  
Anna Szuba-Trznadel ◽  
Anna Rząsa ◽  
Tomasz Hikawczuk ◽  
Bogusław Fuchs
Keyword(s):  
Zinc Oxide ◽  
Growth Performance ◽  
Average Daily Gain ◽  
Environmental Damage ◽  
Weaned Piglets ◽  
Group Iii ◽  
Group I ◽  
Therapeutic Doses ◽  
Daily Gain ◽  
Excessive Accumulation

The aim of this study was to evaluate the effect of zinc (Zn) supplementation in different commercial forms on the growth performance, health status, and Zn balance of weaners in field conditions. The animals were fed pre-starter (from the 28th to 47th day of life) and starter (from the 48th to 74th day of life) mixtures differing in Zn form and concentration. Group I was given ZnSO4 at 150 mg kg−1; Group II received pre-starter zinc oxide (ZnO) at 3000 mg kg−1 and starter at 150 mg kg−1; and Group III was given 150 mg kg−1 of zinc oxide nanoparticles (nZnO). We found that the average daily gain in Group I was significantly lower, compared to Groups II and III. A commonly accepted level of Zn (150 mg kg−1) as nZnO can be recommended, instead of therapeutic doses of Zn preparations with the same efficiency. Moreover, a lower level of Zn in the diet can prevent the excessive accumulation of this element in waste and, thus, reduce environmental damage.

scholarly journals Growth and hematology of pacu subjected to sustained swimming and fed different protein levels

2013 ◽  
Vol 48 (6) ◽  
pp. 645-650 ◽  
Author(s):  
Cleujosí da Silva Nunes ◽  
Gilberto Moraes ◽  
Fernando Fabrizzi ◽  
Araceli Hackbarth ◽  
Gustavo Alberto Arbeláez-Rojas
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Specific Growth Rate ◽  
Dietary Protein ◽  
Crude Protein ◽  
Specific Growth ◽  
Daily Weight Gain ◽  
Mean Corpuscular Hemoglobin ◽  
Protein Levels ◽  
Randomized Design

The objective of this work was to evaluate the effect of sustained swimming and dietary protein levels on growth and hematological responses of juvenile pacu (Piaractus mesopotamicus). A completely randomized design was used in a 3x2 factorial arrangement, with three levels of dietary protein (24, 28, and 32% crude protein), two rearing conditions (sustained swimming or motionless water), and 15 replicates. Fish were subjected to sustained swimming at the velocity of two body lengths per second (2 BL s-1), for 45 days. The level of dietary protein and the swimming conditions affected the performance, growth, and hematological profile of pacu. Swimming conditions influenced nutritional factors, increasing daily weight gain, specific growth rate, number of erythrocytes, mean corpuscular volume, and mean corpuscular hemoglobin. Fish under sustained swimming and fed with 24% crude protein showed better growth performance, with higher specific growth rate (4.11±0.88) and higher daily weight gain (2.19±0.47 g per day). Sustained swimming can increase the productive performance of pacu and simultaneously reduce dietary protein levels.

scholarly journals PVMS based on the lupine grain and amido-concentrative additives for young cattle feeding

2019 ◽  
pp. 74-83
Author(s):  
V. Radchikov ◽  
V. Tzai ◽  
G. Besarab ◽  
S. Piluk ◽  
S. Serguchev ◽  
...  
Keyword(s):  
Weight Gain ◽  
Total Nitrogen ◽  
Hematological Parameters ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Feed Additive ◽  
Productivity Cost ◽  
Fourth Group ◽  
Group I ◽  
Young Cattle

The protein, vitamin and mineral supplements have been developed and it was studied the efficiency of feeding with them the young cattle in the composition of the grain production. The scientific and farm experiment has been carried out during 62 days. The study was conducted in four groups of bulls with 12 heads in each. The initial live weight at the beginning of the study was about 300–310 kg. Differences in feeding were in the fact that the grain forage for young animals of group I included PVMS No. 1, II – PVMS No. 2, III –PVMS No.3, IV – PVMS No 4. The grain feed is represented mainly by barley. The protein, vitamin and mineral supplement replenished 20 % of the deficient protein. It was discovered that concentration of hydrogen ions was practically at the same level in the rumen contents of steers of different groups. As for level of ammonia, VFA, total nitrogen, ciliates in the young cattle of I, II and III groups, the differences were insignificant. The concentration of ammonia of group IVcompared to I, II and III group was higher by 15.58, 23.61 and 21.9 %, VFA – by 6.7, 19.4 and 11.1 %, total nitrogen – by 3.32, 31.44 and 24.03 %, ciliates – by 4.35, 14.29 and 9.09 %, respectively. The research results showed that digestibility of protein, fiber and BEV was higher in the fourth group by 1–7 % compared with the rest groups (P>0.05). A slight increase in nitrogen deposition was found in IV group of young animals (by 4.7–11.9 %) receiving PVMS with AFA as a source of protein. The use of calcium and phosphorus by animals was almost at the same level. The research helped to determine that the average daily weight gain of animals of all the groups was within the range 629–710 g. The highest was in the fourth group consuming PVMS No. 4 with AFA as a protein component; the second place in terms is occupied by group I – 660 g, consuming PVMS No. 2, which included lupine, AFA and standard DKMK No. 1; PVMS No. 3 with depleted phosphate used as a source of phosphorus, took the last place in terms of this indicator – 629 g. Feed cost per 1 kg of weight gain was the lowest in IV group – 8.77 feed units, in I, II and III groups, it was higher by 8.32 %; 13.68 and 10.83 %, respectively. The cost of sold products from one animal during experiment turned out to be higher for steers that received PVMS No. 4 as compared to I, II and III groups by 6.82, 11.36 and 9.1 %, respectively. Keywords: feed additive, additives, steers, growth energy, digestibility, hematological parameters, live weight, productivity, cost price.

scholarly journals DYNAMICS OF GROWTH IN THE GOUSES UNDER CONDITIONS OF THE COMBINED PHARMACOPROPHYLACTIC HOMOBIOTICS, PROBIOTICS BASED ON THE RECOMBINANT BASILL AND ENROFLOXACIN STRAIN

2019 ◽  
pp. 104-110
Author(s):  
G. A. Nozdrin ◽  
N. A. Gotovchikov ◽  
M. S. Yakovleva ◽  
N. S. Yakovleva ◽  
M. B. Lazareva
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Physiological State ◽  
Average Daily Gain ◽  
Live Weight ◽  
Absolute Weight ◽  
Probiotic Preparation ◽  
Daily Gain

The combined effect of homobiotics, probiotics based on recombinant strains of g. Bacillus, & enrofloxacin on the dynamics of body weight gain in geese was studied. According to the principle of steam-analogs, one control and five experimental groups of 10 goslings in each group were formed. Gosyatam experimental groups used homobiotics vetom 15.1; vetom 13.1 incombination with enrofloxacin followed by replacement with a probiotic preparation Vetom 1.2. The absolute body weight and average daily gain in geese under the influence of the studied drugs increases. The severity of the effect depended on the pharmacological composition of the drugs used. The maximum absolute weight gain was observed when using the drugs according to the scheme: vetom 13.1 at doses of 25–50 mg/kg for 16 days, with further use of a 10% enrofloxacin solution at a dose of 0.5 ml/kg for 5 days and in The experiment period was 1.2 at a dose of 50 mg/kg for 16 days. After the cessation of the use of drugs, the growth rate increased for 30 days when prescribing the drugs according to the scheme: veto 13.1 at a dose of 50 mg/kg for 16 days and with further introduction of homobiotic veto 1.2 into the bird in a dose of 50 mg/kg for 16 days. The maximum average daily gain in live weight of geese was observed in the period from the 16th to the 32nd day with the administration scheme: homobiotic vetom 13.1 at a dose of 25 mg/kg of body weight 1 time per day for 5 consecutive days, then every other day for 16 days, then daily 10 % solution of enrofloxacin at a dose of 0.5 ml/kg of body weight for 5 days, then vetom 1.2 at a dose of 25 mg/kg once a day for 16 days in a row. And the maximum average daily gain in the post using period of the drug was observed on the 32nd day of the study according to the scheme: homobiotic veto 15.1 at a dose of 50 mg/kg of body weight 1 time per day for 16 days, then daily with vetom 1.2 at the same dose 1 once a day for 16 days. The studied drugs in the applied doses did not have a toxic effect on the physiological state of geese.

scholarly journals Effect of organic minerals and alpha-ketoglutarate in pheasant diet on performance, hatchability and the composition of eggs

2021 ◽  
Vol 77 (12) ◽  
pp. 6598-2021
Author(s):  
MARIAN FLIS ◽  
DARIUSZ GUGAŁA
Keyword(s):  
Control Group ◽  
Group Iii ◽  
Group I ◽  
Supplement Group ◽  
Mineral Components ◽  
Group A ◽  
Commercial Breeding ◽  
Inorganic Mineral ◽  
Organic Minerals ◽  
Copper Chelates

This study determined the effect of supplementation of the pheasant diet with mineral components (Ca, Fe, Zn and Cu) from organic sources with or without the addition of alpha-ketoglutarate (AKG) on productivity, hatchability parameters, nutrients and mineral content in pheasant eggs. Studies were performed on three groups of laying pheasants, which were kept in aviaries and received a standard mixture (Group I, the control group), a mixture with Ca, Fe, Zn, and Cu glycinates which replaced 50% of the mineral components in inorganic form (Group II), or a mixture with chelates and a 200 mg alpha-ketoglutarate supplement (Group III). Supplementation of the diet with chelates raised the content level of the mineral components in the whole egg and yolk, mainly the contents of calcium, zinc and iron. The addition of 200 mg of alpha-ketoglutarate to the diet with calcium, zinc, iron and copper chelates of glycine (50% of the supplemented elements) resulted in improved laying capacity and rates of reproduction and rearing of chicks, with a slight decrease in the size and weight of eggs. The eggshell was thinner, and the albumen and the Haugh Unit score were higher. Inorganic mineral components can be replaced by glycine chelates at up to 50%, especially with the addition of 200 mg of AKG, in the pheasant diet in commercial breeding.

Haematology and growth performance characteristics of broiler birds fed abattoir wastes (bovine blood and rumen content)

2020 ◽  
Vol 47 (3) ◽  
pp. 67-76
Author(s):  
D. N. Onunkwo ◽  
O. A. Ekine
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Performance Characteristics ◽  
Daily Weight Gain ◽  
Rumen Content ◽  
Broiler Chicks ◽  
Bovine Blood ◽  
Feed Conversion ◽  
Final Body Weight

This study was conducted to assess the effects of abattoir wastes (bovine blood and rumen content mixture) on the haematology and growth performance characteristics of broiler birds. One hundred and twenty (120) unsexed day old Abor acre broiler chicks were randomly assigned to 4 treatments and replicated 3 times in a completely randomized design (CRD) experiment. Four experimental diets were formulated to meet the nutrient requirement of broilers such that the birds were fed sundried abattoir waste (bovine blood and rumen content mixture) included at 0%, 5%, 10% and 15% representing Diet 1, 2, 3 and 4 respectively, with Diet 1 as the control. Each dietary treatment consists of 30 birds with 10 birds per replicate. The experimental diets and clean water were supplied at- libitum throughout the experimental period. Data were collected on feed intake, daily weight gain, final body weight, weight gain. Feed conversion ratios were calculated. Blood samples for hematology was collected, analyzed and recorded. At the end of the 56 days feeding trials, data collected on different parameters were subjected to analysis of variance (ANOVA). Results showed that mixtures of bovine blood and rumen content significantly (P<0.05) improved the final weight (1767.02g -1931.44g), weight gain (1367.02g -1528.44g), feed intake (107.47g -118.99g) and feed conversion ratio (4.87 – 4.08) of the broilers. Significant (P<0.05) improvements were observed on the RBC, WBC, MCV, MCH, eosinophyls and the lymphocytes of the haematological parameters of the broilers. These results showed the complementary potentials of bovine blood and rumen content mixture in broiler diets, which can be included up to 15% in the ration of broilers without detrimentally affecting the growth performance and haematology of the broilers.

scholarly journals Effect of feeding urea-molasses blocks with incorporated fenbendazole on grazing dairy heifers naturally infected with gastrointestinal nematodes

2003 ◽  
Vol 74 (2) ◽  
Author(s):  
R.M. Waruiru ◽  
C.O. Onyando ◽  
R.O. Machuka
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Experimental Period ◽  
Gastrointestinal Nematodes ◽  
Group Iii ◽  
Dairy Heifers ◽  
Helminth Infections ◽  
Group I ◽  
Body Weights ◽  
The Mean

Between June 1999 and August 2000, the effects of feeding medicated urea-molasses supplement blocks on the growth of dairy heifers in a marginal area of central Kenya were assessed by comparing the live-weight gain of supplemented and unsupplemented heifers grazing the same pasture. Thirty-nine heifers with an average age of 9.6 months were initially treated orally with albendazole (10 mg / kg body weight) and assigned to 3 groups : group I was fed urea-molasses blocks with incorporated fenbendazole (MUMB), group II was fed urea-molasses blocks (UMB) and group III heifers (control) received no block supplementation (NBS). Body weights of the heifers and faecal egg counts (FECs) were measured monthly and larval cultures were made of positive faecal samples of each group. The mean cumulative live-weight responses of the MUMB and UMB groups were significantly greater than the NBS group (P < 0.05). However, at the end of the experimental period, the mean weight gain of the MUMB group did not differ from that of the UMB group (P >0.05). The FECs were moderate to low in all groups and decreased progressively with increasing age of the animals; FECs for the urea-molasses-supplemented groups remained significantly lower than those of the NBS group throughout the experimental period (P <0.05). Haemonchus and Trichostrongylus were the predominant nematode genera found in the heifers, but Cooperia, Bunostomum and Oesophagostomum were also present. These results indicate that feeding of urea-molasses blocks substantially reduced production losses attributable to nematode infection of young grazing cattle, and confirms previous observations that well-fed animals are better able to overcome the effects of helminth infections.

scholarly journals Manipulation of growth of the Amazonian fish tambaqui, Colossoma macropomum (Characiformes: Serrasalmidae): analysis of physiological and zootechnical aspects

2018 ◽  
Vol 48 (3) ◽  
pp. 197-206 ◽  
Author(s):  
Arlan de Lima PAZ ◽  
Adalberto Luis VAL
Keyword(s):  
Growth Hormone ◽  
Growth Rate ◽  
Weight Gain ◽  
Hematological Parameters ◽  
Experimental Period ◽  
Daily Weight Gain ◽  
Efficient Production ◽  
Feed Conversion ◽  
Experimental Conditions ◽  
Colossoma Macropomum

ABSTRACT Colossoma macropomum, known locally as tambaqui, is the native fish most farmed in Brazil, however, technological advances are needed to reach efficient production rates. Modulating growth factors, such as growth hormone, may be associated with improved growth rate and feed efficiency. The use of exogenous hormone for fish rearing is prohibited in Brazil, yet the experimental use of bovine hormone can be useful in research aimed at understanding how to stimulate endogenous growth hormones in fish. Therefore, the present study had the strict objective of understanding the effects of growth hormone on the physiology and zootechnical parameters of C. macropomum under experimental conditions. The animals were intraperitoneally injected every fifteen days with 1, 10 and 100 μg g-1 of bGH using 0.9% NaCl saline as diluent. The 10 and 100 μg g-1 bolus had a positive effect on the performance indexes of C. macropomum: weight gain (g), growing length (cm), daily weight gain (g), feed conversion and specific growth rate (% per day). The bGH promoted a greater increase in length than in mass, which caused a reduction in condition factor of the individuals receiving a bolus of 10 and 100 μg g-1. Furthermore, bGH caused no changes in glucose levels, cortisol, hematological parameters, plasma levels of Na+ and K+, and activity of gill’s H+-ATPase and Na+, K+-ATPase, at least during the experimental period considered in the present study.

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