scholarly journals The evaluation of growth and selected carcass and meat quality parameters in fattening bulls fed a diet based on concentrates or maize silage

2008 ◽  
Vol 53 (No. 9) ◽  
pp. 368-376 ◽  
Author(s):  
E. Štercová ◽  
A. Krása ◽  
R. Lepková ◽  
J. Šterc
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Live Weight ◽  
Quality Parameters ◽  
Diet Group ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Maize Silage ◽  
The Mean

The aim of the study was to evaluate the growth rate and selected carcass and meat quality parameters in bulls fed a high-grain diet and to compare the results with those obtained in bulls fed a diet based on preserved roughage. The trial included 18 Czech-Pied bulls fed a diet with a high proportion of concentrated feed and 18 Czech-Pied bulls fed a diet based on maize silage, used as a control group. The trial was launched after the weaning of calves. During the fattening period, live weight and average daily weight gain were monitored. The bulls were slaughtered at the live weight of 550–600 kg, the mean age at slaughter was 473 days for the high-grain diet group and 474 days for the control group. The carcasses were classified to SEUROP quality grades, and carcass gain and dressing percentage were calculated. Samples of <I>m. longissimus pars thoracis</I> were taken from five bulls in each group to examine selected meat quality parameters. In the period from weaning to slaughter the high-grain diet bulls and the control bulls achieved the average daily weight gain of 1.29 kg and 1.21 kg, respectively. Differences between the groups were not significant. The high-grain diet group showed higher average carcass weight and higher carcass weight gain, differences between the groups were not significant, either. As to meat quality parameters under study, a significant difference was found only in meat lightness (L*), with the mean value in the high-grain diet group being significantly (<I>P</I> ≤ 0.01) lower than in the control group. The other meat quality parameters did not show any significant differences between the groups. In this study, the high-grain diet gave similar performance as the maize silage-based diet in fattening bulls. The high-grain diet group and control group showed comparable average daily weight gain and selected carcass and meat quality parameters.

scholarly journals ADAPTIVE CAPACITY OF STUD RAMS OF ASKANIAN MEAT AND WOOL BREED AND PARAMETERS OF SELECTION OF ZAKARPATTJA-TYPE PRECOCE BREED EWES FOR INTER-BREEDING

2020 ◽  
Vol 21 (1) ◽  
pp. 52-59
Author(s):  
I. V. Goncharenko ◽  
V. M. Agiy ◽  
R. G. Filep ◽  
T. M. Durdinets
Keyword(s):  
Weight Gain ◽  
Thin Layer ◽  
Adaptive Capacity ◽  
Live Weight ◽  
Steppe Zone ◽  
Theory And Practice ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Meat Productivity

The rams of the Askanian meat-wool breed, grown and kept in the conditions of the steppe zone of the south of Ukraine, were investigated for their adaptive capacity and adaptation to the conditions of the lowland regions of Zakarpattja. It was found that the physiological response of the rams to the maximum air temperature was characterized by a slight increase in body temperature and pulse, and a significant increase in respiratory rate per 1 minute. The good adaptive properties of the Askanian meat and wool breed rams are indicated by the high breeding capacity of ewes, at 97%, in both farms. The ewes of the breed prekos with a live weight of 55.9–58.9 kg were involved in the breeding process, and the Askanian rams with a live weight of 93.3–95.1 kg. It was studied the influence of crossbred crossing of crossbred Askanian sheep of meat and wool breed on the development of productive and reproductive features of Zakarpattja sheep ewes of the breed prekos with the purpose of obtaining mixed breeds with improved economic performance. It is proven by theory and practice that one of the main criteria for the rational management of sheep breeding in modern conditions is the study of individual features of growth and development of young sheep. In a market economy, increasing the meat productivity of sheep is an important factor that determines the level of economic efficiency of the industry. Obtained progeny at the age of 4–8 months had a higher intensity of growth. Thus, the average daily weight gain of lambs in the control group was 234 g, and experimental — 265 g, which is 11.3% more than in the control. The average daily weight gain of the bright control group was 205 g, and the experimental one — 244 g, which is 11.9% more than in the control group. At the age of 8 months, the fat mass of slaughtered animals ranged from 32–36 kg and the carcass weight was 15–18 kg with good fat irrigation. The classification of sheep carcasses by fat irrigation according to the EUROP system corresponded to the average level of coverage of carcasses with fat, that is, the whole carcass was covered with a thin layer of fat, at the base of the tail — small accumulations of fat, the kidneys partially or completely covered with a thin layer of fat, with a slight fatty water between visible intercostal muscles .The balanced feeding of experimental animals had a positive effect on the increase in live birth weight and their viability. The minimum selection parameters of breeding sheep ewes, which are involved in the breeding process, are also set for obtaining animals with high multi-farrowing and combined productivity.

scholarly journals Live weight dynamics and exterior indexes of jersey breed fed on dry brewers waste

2019 ◽  
pp. 95-102
Author(s):  
A. Veres ◽  
M. Kryvyi
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Relative Growth Rate ◽  
Live Weight ◽  
The Body ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Relative Growth ◽  
Experimental Group

The scientific results of the body weight dynamics, the multiplicity of its increase, the average daily weight gain, the relative growth rate and the exterior indicators are presented. The brewers waste is a high-protein product with a high content of carbohydrates, including fiber.For the research, three groups of Jersey breed were formed on the principle of the analogue group: the first was control, the second and the third – experimental. Their rations were introduced by 15 % and 20 % of dry brewers waste from the total diet, respectively. It was established that the live weight of the experimental cows from the 2nd group was 9.3 times bigger. The live weight of the experimental cows from the 1st and 3rd group increased 9 times. The cows from the 2nd group had the highest average daily weight gain (811.4 g) in the period from 2 to 6 months. It was 3.2 % times more than in the control group and 7.4 % times more than in the 3rd experimental group. The cows from the 2nd experimental group had the highest relative growth rate (85.7 %) in the period from 2 to 6 months which was 2.2 % times more than in the 1st control group and 4.2% times more than in the 3rd experimental group. In the period from 6 to 12 months, the 2nd experimental group had the highest average daily weight gain (671.4 g), which was 2.1 % more than in the 1st control group and 3.5 % more than in the 3rd experimental group. From 6 to 12 months the relative growth rate in all groups was almost the same and ranged from 54.2% – 54.7 %. At the age of 12 months, the 1st control group had greater index (120.4). The 3rd experimental group had 119.6 and the 2nd – 118.6. The 2nd group of the same age had better shooting index than the 1st control group 0.7 % times more and the 3rd group 1.4 % times more. It indicated the better development of the body weight. Key words: dynamics, weight gain, repair heifers, Jersey breed, measurements, indicators.

scholarly journals A simple and fast sampling method for chemical analyses and densitometry of bones through rib biopsies in cattle

2017 ◽  
Vol 37 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Pedro Malafaia ◽  
Yury T.G. Salcedo ◽  
Ricardo A.R. Uscategui ◽  
Vinícius C. Souza ◽  
Diogo Fleury A. Costa ◽  
...  
Keyword(s):  
Weight Gain ◽  
Chemical Analysis ◽  
Dry Matter ◽  
Phosphorus Deficiency ◽  
Postoperative Recovery ◽  
Dry Matter Intake ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Simple Method

ABSTRACT: We developed and evaluated a fast and simple method to obtain suitable bone samples for densitometry and chemical analysis through biopsies of the 12th rib of cattle. The postoperative recovery, dry matter intake (DMI) and average daily weight gain (ADG) was evaluated in 36 Nellore steers, nine of which were randomly selected for the control group and 27 others were rib biopsied. Every 30 days, rib biopsy was performed in nine steers, using a corded-electric pistol-grip drill coupled with a hole saw of a 3mm diameter pilot drill bit. This rib biopsy technique provided a suitable sample obtained in a fast way and allowed the surgeon to work alone with the animal slightly sedated and restrained in the crush. Dry matter intake (DMI) was not affected in biopsied animals. At the end of the experimental period (116 days) the average daily weight gain (ADG) was similar in the steers biopsied or not. The described method provided rib samples from cattle suitable for densitometry and chemical analysis of bone tissue without effects on health and performance. This information could greatly increase the accuracy for the diagnosis of phosphorus deficiency in cattle raised on pasture and allow the evaluation of bone metabolism in experimental animals.

scholarly journals Performance of Broilers Supplemented With Peppermint (Mentha piperita L.) Powder

2017 ◽  
Vol 22 (4) ◽  
pp. 703-706 ◽  
Author(s):  
Nematollah Asadi ◽  
Seyed Davood Husseini ◽  
Mohammad-Taghi Tohidian ◽  
Nargess Abdali ◽  
Amir Mimandipoure ◽  
...  
Keyword(s):  
Weight Gain ◽  
Daily Weight Gain ◽  
Control Treatment ◽  
Mentha Piperita ◽  
Control Group ◽  
Broiler Chicks ◽  
Average Daily Weight Gain ◽  
Randomized Design ◽  
Production Period ◽  
And Control

This study was conducted to determine the effects of dietary supplementation of peppermint ( Mentha piperita L.) on the performance of broiler chicks. 500 Ross broiler chicks were divided into 5 treatment groups of 4 replications in a completely randomized design format. The diets were ISO-caloric and ISO-nitrogenous ones and contained 1.5, 3, 4.5, and 6 g/kg of peppermint powder. At start, growing, and end periods, the effects of peppermint powder on average daily weight gain, feed conversation ratio, and mortality rate were studied. The results of the present study showed that over a production period of 42 days peppermint had a significant effect on average daily weight gain and feed conversation ratio when compared with the control group ( P < .05). The level of 4.5 g/kg had the highest average daily weight gain (52.78 g), and control treatment with 46.98 g had the least average daily weight gain among different levels of peppermint. The level of 4.5 g/kg and 6 g/kg of peppermint had the least mortality compared to control treatment during training period ( P < .05). From this experiment, we can conclude that treatment with 4.5 g/kg peppermint powder has better performance and carcass characteristics in broilers.

scholarly journals Performance characteristics and cost benefit of feeding weaner rabbits cashew nut residue based diets

2021 ◽  
Vol 34 (2) ◽  
pp. 203-207
Author(s):  
F.A.O. Akinnusi ◽  
A.M. Bamgbose ◽  
A.B. Ogunola ◽  
A.A. Alade
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Cost Benefit ◽  
Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Average Daily Weight Gain ◽  
Cashew Nut ◽  
Feed Cost ◽  
Dietary Treatments

A 42-day feeding trial was conducted to investigate the performance characteristics and cost benefit of feeding weaner rabbits cashew nut residue (CNR) based diets. Three dietary treatments containing: 0.10 and 20% CNR at the expense of maize on a weight for weight basis were used. Eighteen weaner rabbits (mixed breeds and sexes) were randomly divided into three groups of six rabbits each in a completely randomized design (CRD). The average daily weight gain, average daily feed intake and feed conversion ratio were not significantly influenced (P>0.05) by the dietary treatments. But rabbits fed 10% CNR based diet had the highest values for average daily weight gain and average daily feed intake while rabbits fed the control diet (0% CNR) had the least value for feed conversion ratio. No mortality was recorded for all the dietary treatments. The feed cost/kg diet (₦), feed cost/kg live weight gain (₦/kg) and cost of feed consumed/day (₦) decreased steadily with increasing level of cashew nut residue meal. The saving on feed cost (%) was not significantly affected (P>0.05) by the dietary treatments, but increased across the groups. However, the saving on feed to produce 1kg live weight was significantly (P<0.05) influenced by the CNR based diets. Rabbits fed 10% CNR based diet had the highest value of 9.66% than their counterparts fed other diets. It is concluded that cashew nut residue could be incorporated into rabbit diet at 10% without compromising the performance

scholarly journals THE EFFECT OF BISOLBI ON BIOCHEMICAL AND PRODUCTIVE PROCESSES OF THE HOLSTEIN-FRIESIAN CALVES

2021 ◽  
Vol 6 (1) ◽  
pp. 57-63
Author(s):  
Galina Molyanova ◽  
Maksim Nogotkov
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Average Daily Gain ◽  
The Body ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Glucose Content ◽  
Holstein Friesian ◽  
Experimental Group

The purpose of the research is increasing the average daily gain of animals due to the use of the Bisolbi drug. The effect of Bisolbi preparation based on Bacillus subtilis H-13 1.5×108 (LLC «Bisolbi-Inter») on the biochemical and productive life of calves was studied. The scientific and production experiment was carried out on the basis of a dairy farm of the State «Kupinskoe» Unitary Enterprise of the Samara region involving 30 Holstein-Friesian calves. The biological effect of the drug is provided due to its adsorption properties, the ability to enhance the activity of a number of enzyme systems and increase the digestive and systemic immunity of the body. The drug use increases the integration intensity of animals: the amount of total protein in the blood serum of calves of the experimental group at 120 days of age was higher by 8.9% (p<0.05), albumin – by 9.2% (p<0.01), compared with the animal data of con-trolled group. The Bisolbi indication contributed to an increase in the intensity of carbohydrate-lipoid metabolism: the cholesterol amount was higher by 23% (p<0.01), the glucose content – by 0.4 mmol/l (p<0.05) in the blood of 120 day old calves of the experimental group, compared with the data of controlled animals. It was found that the body weight of calves in the control group of 100 days age was 105.23±2.11 kg, in the experimental group – 108.6±2.19 kg, which is 3.37 kg higher. The average daily weight gain of animals in experimental group was signif-icantly higher by 0.075 kg (p<0.01). At 120 days of age, the body weight of the experimental calves was higher by 4.19 kg (p<0.05), the average daily weight gain by 0.080 kg (p<0.05), compared with the data of the controlled ani-mals. The indication of Bisolbi 5-10 ml (LLC «Bisolbi-Inter») to calves daily for 2 months resulted in an additional profit constructively of 137 rubles from each head.

scholarly journals Beef performance of Holstein calves slaughtered at 300 kg of live weight

2006 ◽  
Vol 54 (4) ◽  
pp. 13-20 ◽  
Author(s):  
Gustav Chládek ◽  
Daniel Falta
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Great Majority ◽  
High Ratio ◽  
Daily Weight Gain ◽  
Feedlot Performance ◽  
Holstein Calves ◽  
Holstein Bulls ◽  
Young Cattle ◽  
The Mean

The aim of this work was to quantify basic feedlot performance and carcass value characteristics of Holstein bulls slaughtered as “young cattle” at 300 kg of live weight. The observation was carried out in a group of 12 Holstein bulls fattened in identical conditions and fed on a diet consisting of ad libitum amount of crushed grain (barley and wheat) and a limited amount of protein concentrate.The mean overall values were as follows: age and live weight at slaughter 275.9 days and 299.3 kg, daily weight gain and net weight gain since birth 0.962 kg and 0.527 kg, dressing percentage 48.3%, weight of cold right carcass half 71.0 kg, weight of bones 17.5 kg, weight of muscle 53.0 kg and separable fat 0.54 kg. The mean weight of hide was 21.6 kg. The great majority of calves were classified as O2, one calf graded R2. The forequarter to hindquarter ratio was 1.4 with mean weights 29.1 kg and 41.9 kg. The mean weight of neck was 3.9 kg, chuck 3.6 kg, shoulder 5.9 kg, fore shank 3.4 kg, loin 4.1 kg, filet 1.5 kg, round 18.2 kg and hind shank 1.3 kg. We found highly significant (P<0.01) coefficients of correlation between carcass weight and live weight at slaughter (r=0.963) or daily weight gain (r=0.723). Net weight gain since birth was highly significantly (P<0.01) correlated to live weight at slaughter (r=0.723) or to daily weight gain (r=0.982) and significantly correlated (P<0.05) to age at slaughter (r= –0.665).Despite the average or worse-than-average feedlot performance parameters our experimental Holstein bulls had an adequate proportion of muscle (comparable with other literature sources), a high ratio of bones and a very low proportion of fat. Thanks to small meat trim, weights of the main dissection parts of fore-and hindquarters were comparable to those usually found in young Holstein bulls.

scholarly journals On-farm evaluation of growth and reproductive performances of Washera and Gumuz sheep in northwestern Ethiopia: Basics for setting up breeding objectives/goals

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254924
Author(s):  
Sisay Asmare ◽  
Kefyalew Alemayehu ◽  
Solomon Abegaz ◽  
Aynalem Haile
Keyword(s):  
Weight Gain ◽  
Reproductive Performance ◽  
Interaction Effect ◽  
Growth Traits ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Breed Type ◽  
Breeding Objectives ◽  
Performance Traits

Growth and reproductive performance traits are traits of economic importance for sheep selection and productivity improvement interventions. This study aimed at comparative evaluation of growth and reproductive performance traits of sheep in the highland and lowland agro-ecologies of northwestern Ethiopia. Data on growth performance traits were collected from 144 Washera (78 males and 66 females) lambs and 72 Gumuz (37 males and 35 females) lambs. Data on reproductive performance traits were collected from 260 Washera (130 rams and 130 ewes) sheep and 150 Gumuz (75 rams and 75 ewes) sheep. General linear model univariate procedure was employed to analyze the collected data. Breed, the interaction effect between breed and season of birth as well as the interaction effect between breed and type of birth all exerted very high significant effect (P<0.001) on live weight at all age groups. Breed type affected pre-weaning average daily weight gain significantly (P<0.01). Pre-weaning average daily weight gain of Washera (70 g/day) was found much better performance than 60 g/day of Gumuz. Breed type exerts significant (P<0.05) effect on age at first lambing, lambing interval, annual reproductive rate and number of lambs born per ewe life time. Average age at first lambing and lambing interval of Washera sheep were 11.69 months and 9.27 months, respectively. The corresponding values for Gumuz sheep were 12.51 months and 10.43 months, respectively. Production and reproduction performance values of traits varied across the two breeds and sexes as well. These values can be used to set up breeding objectives or goals for selective breeding of sheep giving special emphasis to growth traits believed to have medium heritability values.

scholarly journals Evaluating the growth of replacement heifers from different seed bulls

2021 ◽  
Vol 282 ◽  
pp. 03008
Author(s):  
O.V. Gorelik ◽  
S. Yu. Harlap ◽  
O.P. Neverova ◽  
M.N. Sen ◽  
P.S. Galushina ◽  
...  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Genetic Potential ◽  
Different Ages ◽  
Weight Gains ◽  
Second Period

In the Sverdlovsk region Holsteinized Black Pied cattle of the Ural type are bred which are represented by large, highly productive animals with a high genetic potential for productivity. Great importance is attached to the rearing replacement calves. The aim of the study was to study the dynamics of the live weight of replacement heifers from different seed bulls during rearing and its dependency on the age of the first insemination. The highest average daily weight gains were in the dairy period of heifers development, they ranged from 989 g for the daughters of the bull Thunderline to 1054 g for their peers from the bull Maximum. There were also high average daily gains during this period when rearing heifers from the bull Renigend. In the second period of rearing from 6 to 10 months of age there was a decrease in the average daily weight gain in all groups. Heifers from different seed bulls reach the required live weight for the first insemination at different ages. Maximum’s daughters, which had the weight of 399.4 kg at the age of 12.9 months. reached the required live weight most quickly. Their peers from other seed bulls reached the aforementioned live weight only at the age of 13.7 months.

Estimates of the energy required for maintenance by adult sheep 1. Housed sheep

1963 ◽  
Vol 5 (1) ◽  
pp. 1-9 ◽  
Author(s):  
J. P. Langlands ◽  
J. L. Corbett ◽  
I. McDonald ◽  
J. D. Pullar
Keyword(s):  
Organic Matter ◽  
Weight Gain ◽  
Functional Relationship ◽  
Live Weight ◽  
Heat Emission ◽  
Daily Weight Gain ◽  
Direct Calorimetry ◽  
Adult Sheep ◽  
Digestible Organic Matter ◽  
The Mean

SUMMARYEight adult ewes were fasted for 114 hr. During the last 48 hr. the heat emission of each sheep was measured by direct calorimetry and was found to be 35·2 kcal./kg.0·87/24 hr., that is, 973 kcal./24 hr. for a sheep of 45·4 kg. (100 lb.) live-weight. From this value it is estimated that the 100 lb. sheep would require daily 0·79 lb. digestible organic matter (DOM) from pasture herbage for maintenance.In a second experiment, 49 adult sheep were kept indoors and fed on fresh herbage for a period of 72 days. Measurements were made of the mean daily DOM intake (D), mean live-weight (W) and mean daily weight gain (G) of each sheep. The regression of D on Wk and G, and the underlying or functional relationship between D, Wk and G were both estimated for k = 0·73 and k = 1·0. From the underlying relationships, the preferred equations, the maintenance requirement of a 100 lb. sheep was estimated to be 0·82 lb. DOM daily. This value and those calculated for other live-weights are approximately two-thirds of the corresponding values given in ‘Rations for Livestock’ (Evans, 1960).

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