scholarly journals Analiza parametara kakvoće junećih polovica s obzirom na pasminu i spol

Meso ◽  
2017 ◽  
Vol 19 (2) ◽  
pp. 141-145
Author(s):  
Tomislav Fabijanec ◽  
Lidija Kozačinski
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Quality Parameters ◽  
Daily Weight Gain ◽  
Beef Carcasses ◽  
Dressing Percentage ◽  
Parameter Values

Effect of breed and sex on analysed quality parameters of beef carcasses The aim of this study was to determine level of the influence of breed and sex, as well as their interaction on slaughtering traits of beef halves. The study was conducted on 80 beef cattle of which 40 were Simmental (20 male and 20 female) and 40 beef cattle (20 male and 20 female) were meat crossbreeds of Charolais, Limousin, Blonde d’Aquitaine cattle. Sex had a significant effect on slaughtering traits (P<0,001). Male of beef cattle had a significantly more favorable parameter values of weight slaughtering halves and netto daily weight gain (P<0,001). The breed had also a significant impact on slaughtering parameters (P<0,001). Significantly better parameter values of weight slaughtering halves, netto daily weight gain and dressing percentage were found in a group of crossbred beef cattle (P<0,001). Therefore, from the obtained results it can be concluded that the crossbreed cattle had a significantly better quality of beef halves (P<0,001).

scholarly journals VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE

Irriga ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 143-161
Author(s):  
Jardel Henrique Kirchner ◽  
Adroaldo Dias Robaina ◽  
Marcia Xavier Peiter ◽  
Rogério Ricalde Torres ◽  
Wellington Mezzomo ◽  
...  
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Rio Grande ◽  
Production Costs ◽  
Daily Weight Gain ◽  
Rio Grande Do Sul ◽  
Forage Sorghum ◽  
Financial Feasibility ◽  
Santa Maria ◽  
Sorghum Bicolor L

VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE     JARDEL HENRIQUE KIRCHNER1; ADROALDO DIAS ROBAINA2; MARCIA XAVIER PEITER3; ROGÉRIO RICALDE TORRES4; WELLINGTON MEZZOMO5 E BRUNA DALCIN PIMENTA   1 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Nelsi Ribas Fritsch, nº 1111, bairro Esperança, Ibirubá, RS, Brasil, CEP: 98200-000, [email protected] 2 Eng. Agrônomo, Doutor, Professor Titular do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 3 Eng. Agrônoma, Doutora, Professora Associada do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 4 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Eng. João Viterbo de Oliveira, nº 3061, Zona Rural, Vacaria, RS, Brasil, CEP: 95219-899, [email protected] 5 Eng. Agrônomo, Mestre, Doutorando no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 6 Eng. Agrônoma, Mestra, Doutoranda no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]     1 RESUMO   A bovinocultura de corte mantida em pasto de sorgo forrageiro caracteriza-se como um dos principais meios de produção bovina no Rio Grande do Sul. Contudo, há irregularidade das precipitações e os produtores utilizam a irrigação como alternativa para o problema. Porém, há uma necessidade de determinação dos custos de produção e da viabilidade financeira da atividade. O trabalho objetivou avaliar a viabilidade financeira da irrigação em sorgo forrageiro para a bovinocultura de corte para diferentes expectativas de ganho de peso médio diário dos animais. Conduziu-se dois experimentos em 2015/2016 e 2016/2017 em Santa Maria/RS, e avaliou-se as produtividades de seis lâminas de irrigação por aspersão convencional (0, 25, 50, 75, 100 e 125 % da ETo), em quatro repetições, delineamento blocos ao acaso. Com as produtividades, gerou-se funções de produção e determinou-se a carga animal possível de ser alimentada para cada tratamento. Simulou-se três cenários de ganho de peso diário por animal (0,5, 1 e 1,5 kg-1animal-1 dia-1), e os custos de produção para cada condição hídrica estabelecida, além do retorno financeiro para cada cenário testado. Verificou-se viabilidade financeira para a maioria das situações simuladas avaliadas e que os custos dependem do regime das precipitações.   Palavras chave: Sorghum bicolor L. (Moench), irrigação de pastagem, viabilidade financeira, custos de produção.     KIRCHNER, J. H.; ROBAINA, A. D.; PEITER, M. X.; TORRES, R. R.; MEZZOMO, W.; PIMENTA, B. D. FINANCIAL FEASIBILITY OF IRRIGATION IN FORAGE SORGHUM IN ASPERSION SYSTEM FOR MEAT CATTLE BREEDING   2 ABSTRACT   Beef cattle kept in pasture of forage sorghum is characterized as one of the main means of bovine production in Rio Grande do Sul. However, rains are irregulat and producers  use  irrigation as  alternative to the problem. However, there is a need to determine production costs and  financial viability of the activity. The objective of this work was to evaluate the financial feasibility of irrigation in forage sorghum for beef cattle for different expectations of average daily weight gain of the animals. Two experiments were conducted in 2015/2016 and 2016/2017 in Santa Maria / RS, and the yields of six conventional irrigation depths (0, 25, 50, 75, 100 and 125% of the ETo) were evaluated, in four replications, and randomized block design. With the productivities, production functions were generated and the possible animal load to be fed for each treatment was determined. Three scenarios were simulated of daily weight gain per animal (0.5, 1 and 1.5 kg-1animal-1day-1), and the production costs for each established water condition, in addition to the financial return for each scenario tested. Financial feasibility has been verified for most of the simulated situations evaluated and costs depend on the precipitation regime.   Keywords: Sorghum bicolor L. (Moench), forage irrigation, financial viability, production costs.

Wool quality and daily weight gain in native lambs from the Central Region of Argentina

2021 ◽  
Vol 29 (1-2) ◽  
pp. 21-28
Author(s):  
María Bettina Gómez ◽  
Melina Castillo
Keyword(s):  
Weight Gain ◽  
Textile Industry ◽  
Meat Product ◽  
Great Variability ◽  
Daily Weight Gain ◽  
Handling Practices ◽  
Productive Systems ◽  
Outstanding Quality

The ovine population of the central Argentine territory is the result of constant introductions of different animal biotypes, which determined the existence of ovine populations with great variability. The main objective of the breeders is to produce a lamb for self-consumption and sale of surpluses, without considering the wool product. The production of a lamb for the market is compatible with the production of wool for the textile industry, having to evaluate the feasibility for the commercialization of lamb wool that they produce. This work aimed to provide information and tools to evaluate the quality of lamb’s wool and the evolution of the weight of lambs belonging to the native flocks of the area. Characterization of the productive systems was carried out, seeking to highlight the attributes of meat and wool of native lambs. The characteristics of wool and meat lamb product were evaluated under two treatments, either in free rage conditions or lambs supplemented under confinement. The analysis of the behaviour of the productive systems did not show significant differences between lamb biotypes, which allows affirming that the variation within an animal biotype is even more important than the expected one between biotypes. This indicates that both treatments can be used according to the particular situation of each productive unit. Therefore, it is possible to produce wool and meat of outstanding quality looking for the goodness of the wool produced and optimizing through proper handling practices the meat product.

Effects of dietary selenium-yeast concentrations on growth performance and carcass composition of ducks

2017 ◽  
Vol 57 (8) ◽  
pp. 1731 ◽  
Author(s):  
Milan Ž. Baltić ◽  
Marija Dokmanović Starčević ◽  
Meho Bašić ◽  
Amir Zenunović ◽  
Jelena Ivanović ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Subcutaneous Fat ◽  
Conversion Ratio ◽  
Carcass Composition ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Control Group ◽  
Feed Conversion ◽  
Dressing Percentage

The aim of the present study was to assess effects of selenium (Se)-yeast diet supplementation on performance and carcass composition in ducks. The study was performed on 240 1-day old ducklings of the same origin (Cherry Valley hybrid), during a 49-day period, which were fed diets supplemented with the following four different levels of Se yeast (ALKOSEL® R397): groups with Se at 0 mg/kg of the diet as-fed, 0.2 mg/kg, 0.4 mg/kg and 0.6 mg/kg. Growth performance (bodyweight, daily weight gain, daily feed intake, feed-conversion ratio) and carcass characteristics (hot and cold carcass weight, chilling losses, dressing percentage, carcass cut yields, and percentage of tissues in breast and thighs with drumsticks) of the ducks were determined. Animals fed high-Se diets (0.4 mg/kg) had higher (P < 0.05) final bodyweight and daily weight gain (from 15 to 49 days) compared with those fed diets with inadequate (0 mg/kg) or with supranutritional (0.6 mg/kg) Se levels. Ducks fed only with basal diet showed a higher (P < 0.05) feed-conversion ratio (from 15 to 49 days) compared with those supplemented with Se at 0.4 mg/kg and 0.6 mg/kg. Dressing percentage was higher (P < 0.01) in the control group (69.50%) than in the group with Se added at 0.6 mg/kg (66.85%). The weights of basic cuts from the duck carcasses did not significantly differ among compared groups. Moreover, the percentage of skin with subcutaneous fat in breast and thighs with drumsticks increased in Se-supplemented groups compared with the control group, while the opposite was determined with the percentage of muscle. It was concluded that a diet containing 0.4 mg of added Se per kilogram produced the greatest growth-performance results in ducks.

scholarly journals Feeding different cultivars and quality levels of faba bean to broiler chickens

2021 ◽  
Author(s):  
Miranda N Smit ◽  
Liangfei He ◽  
Eduardo Beltranena
Keyword(s):  
Faba Bean ◽  
Broiler Chickens ◽  
Frost Damage ◽  
Daily Weight Gain ◽  
Quality Level ◽  
High Quality ◽  
Dressing Percentage ◽  
D 12 ◽  
High Quality Seed

Abstract A concern of both pulse growers and poultry producers is how frost damage around harvest time affects the nutritional quality of faba bean for broiler chickens. To investigate, 2 zero-tannin cultivars (Snowbird, Snowdrop) and 1 low vicine and convicine cultivar (Fabelle) sourced from seed growers were spring planted 3 weeks later than recommended (mid-May) and harvested late October to purposely increase frost damage. Parent, certified seed (high quality) and harvested frost damaged beans (low quality) of the 3 cultivars were fed to 740 chickens housed in 64 floor pens in a 2 x 3 factorial plus control (9 pens of 11 or 12 birds per treatment). Starter (d 0 to 11), grower (d 12 to 24) and finisher (d 25 to 40) diets included 15, 30, and 45% faba bean in partial (starter, grower) or total replacement of soybean meal (SBM; control). Harvested Snowbird, Snowdrop, Fabelle averaged 52, 62, 17% blackened hull and 35, 43, 51% immature beans, respectively. There was a cultivar x quality interaction (P < 0.05) on daily feed disappearance (ADFI) and gain-to-feed (G:F). Broilers fed low quality Snowdrop consumed 10 g/d more finisher and 6 g/d more feed overall than those fed low quality Snowbird or Fabelle; broilers fed parent seed were intermediate. Feeding low quality Fabelle resulted in best overall G:F (0.646) vs. high quality Snowbird (0.611), high quality Fabelle (0.624), or low quality Snowdrop (0.624). Average daily weight gain (ADG) and bird body weight (BW) at the end of each growth phase were not affected by cultivar or quality level. Controls fed SBM only grew 2.75 g/d faster overall and were 113.5 g heavier at the end of the trial than broilers fed faba bean (P < 0.05). Controls fed SBM only had 0.024 g/g better overall G:F than broilers fed faba bean (P < 0.05). Feeding low quality beans or high quality seed had no effect on antemortem BW, chilled carcass weight (WT), dressing percentage or yield of saleable cuts except that broilers fed Snowbird or Snowdrop had 0.8%-unit larger thighs than those fed Fabelle. Controls fed SBM only were 110 g heavier at slaughter, had 72 g heavier chilled carcass WT, and 0.5%-unit greater dressing percentage than broilers fed faba bean (P < 0.05). These results indicate that feeding frost damaged and(or) immature faba bean, to the extent observed in this trial, did not negatively affect growth performance or carcass attributes of broiler chickens compared to feeding parent, certified, high quality seed of these cultivars.

scholarly journals EFFECTS OF DIFFERENT LEVELS OF DIETARY METHIONINE ON THE CARCASS CHARACTERISTICS OF FINISHER COCKERELS

2021 ◽  
Vol 25 (1) ◽  
pp. 25-30
Author(s):  
S. O. NWOKORO ◽  
O. O. TEWE
Keyword(s):  
Weight Gain ◽  
Carcass Characteristics ◽  
Daily Weight Gain ◽  
Dressing Percentage ◽  
Dietary Treatments ◽  
Different Levels

The experiment was conducted to determine the effect of different levels of dietary methionine on carcass characteristics of finisher cockerels. 500 day old cockerels were reared together initially for 7 weeks and at 8 weeks of age, they were assigned to 8 dietary groups of different methionine levels. Weights of the birds were taken at the beginning and end of the experiment. In the 16th week, the birds were slaughter to determine various    carcass measurements. Result indicated that daily weight gain was significantly (P < 0.05) affected by dietary treatments. The daily weight gain increased with increasing level of dietary methionine until it was optimized at 0.37% level. The dressing percentage and most other cut up parts (Drumstick, Thigh, Neck, Back, Breast, Wings) were significantly differences were observed for most organs (expect spleen), gut and comb measured, these were not however consistent with dietary treatments.

scholarly journals Growth, carcass and meat quality parameters of purebred and crossbred goat kids in extensive pasture

2007 ◽  
Vol 50 (2) ◽  
pp. 186-196 ◽  
Author(s):  
P. Herold ◽  
H. Snell ◽  
E. S. Tawfik
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Landscape Management ◽  
Quality Parameters ◽  
Daily Weight Gain ◽  
Meat Production ◽  
Landscape Conservation ◽  
Grazing Period ◽  
Carcass Performance ◽  
Harsh Conditions

Abstract. Goats are more and more used as shrub-fighters in landscape conservation. Important traits for the extensive production system are vitality and robustness but also acceptable meat production of kids during the grazing period. To investigate possible selection traits for "landscape conservation suitability", 35 kids were investigated for vitality parameters directly after birth whereas all-in 65 kids were investigated for performance traits under extensive grazing conditions. Birth weight as a parameter for vitality and survivability of kids was significantly influenced by sex, genotype and age of doe. Besides rectal temperature 3 hours p.p., other factors regarded as possible vitality parameters were not influenced by birth weight. Birth weight had a significant influence on daily weight gain during the extensive period; kids with higher birth weight showed slightly better weight gain. Birth weight had also a significant effect on some carcass parts, indicating that higher birth weight implies a high probability of a better carcass performance especially in some valuable parts. Still, the effect of the genotype on carcass performance was considerably higher than any other investigated effect. As a result of the present study, there are indications that birth weight can be taken as a parameter for kids' vitality. Also, it is indicated that goats of Cashmere type as fibre animals are not appropriate for landscape management whereas crossbred animals with a meat, dairy and fibre component in their genotype showed to be a vital animal with acceptable efficiency also in harsh conditions and with an average meat and carcass performance.

scholarly journals INFLUENCE OF GRADED LEVELS OF TOASTED BAMBARA GROUNDNUT MEAL ON RABBIT CARCASS CHARACTERISTICS

2021 ◽  
Vol 27 ◽  
pp. 87-89
Author(s):  
J. K. JOSEPH ◽  
B. AWOSANYA ◽  
P. C. ADEOYE ◽  
M. ROKEKUNLE
Keyword(s):  
Weight Gain ◽  
Feed Efficiency ◽  
Live Weight ◽  
Positive Influence ◽  
Daily Weight Gain ◽  
Average Weight ◽  
Randomized Design ◽  
Inclusion Level ◽  
Dressing Percentage ◽  
Rabbit Carcass

The effect of feeding graded levels of toasted banban ground out meal on rabbit weaners was investigated. A total of fifty white rabbit weaners of 6 - 8 weeks with an average weight of 366,7 gwere fed the graded level of tested bambara nut meal at 0. 5, 15, 25 or 35% inclusion level in a complete randomized design experiment for a period of six week. The final live weight, daily feed intake were not influcticed (P>0.05) by the level of bambara nut meal in the diet. However, positive influence of the graded level of bambara nut meal was observed on the rabbit daily weight gain, feed efficiency dressed carcass, dressing percentage and ment: bone ratjo. Rabbits on the 25 and 15% bambara nut inclusion levels were found to have similar (P>0.05) daily weight gain and dressing percentage with the control ration. Rabbit on the 5% bambara nut level diet had the least feed efficiency (0.22) and meat: bone ratio (3.6), while the dressed weights of rabbit fed the diet containing 25% bambara nut meal had the highest dressed carcass weight (501.6g). Rabbits' carcass cut-up parts as well as internal organs (liver, heart, kidneys and lungs) were not influenced by the dietary levels of bambara nut meal. But the pelt weight, empty gut weight, lipid and moisture contents were significantly (P<0.05) influenced by the levels of bambara nut meal in the diet. 

scholarly journals Performance of Nellore males under different artificial shading levels in the feedlot

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2623
Author(s):  
Diogo Alves da Costa Ferro ◽  
Emmanuel Arnhold ◽  
Claudia Peixoto Bueno ◽  
Eliane Sayuri Miyagi ◽  
Rafael Alves da Costa Ferro ◽  
...  
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Daily Weight Gain ◽  
Leg Length ◽  
Initial Weight ◽  
Total Weight Gain ◽  
Nellore Cattle ◽  
Humidity Index ◽  
Artificial Shading

The objective of this study was to evaluate the influence of artificial shading on weight gain and meat quality of male Nellore cattle in an intensive production system. The experiment was conducted in the experimental feedlot of the Course of Animal Science at Universidade Estadual de Goiás, from July to October 2014. Forty-eight male Nellore cattle with an average initial weight of 310 kg were kept in double 24-m2 stalls, in a total of 24 stalls. Of these, six were in the open air; six were covered with black shade netting of 30% light interception; six with black shade netting 50%; and six with black shade netting 80%, providing 6 m2 of shade per stall. The ration supplied to the animals and the orts left in the trough were weighed daily to determine intake, and the temperature-humidity index (THI) was measured twice weekly. Animals were weighed for the first time at the start of the experiment, and then another three times until the end, which was followed by the slaughter and assessments of performance and meat quality. A difference (p &lt; 0.05) was observed between the average THI values, with the highest value found in the stalls without artificial shading. No difference (p &gt; 0.05) was observed for feed intake, initial weight, final weight, total weight gain, average daily weight gain, carcass yield, marbling, texture, fatness, backfat thickness, loin-eye area, color, thigh length and circumference, leg length and circumference, or carcass length between the animals on the different treatments. The use of artificial shading does not have a significant effect on performance or meat quality of feedlot Nellore cattle when the ambient temperature is within the thermal comfort zone.

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.

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