scholarly journals Componentes não integrantes da carcaça de novilhos terminados em confinamento recebendo ureia protegida ou agrícola em substituição ao farelo de soja

2018 ◽  
Vol 39 (6) ◽  
pp. 2761 ◽  
Author(s):  
Gilmar Dos Santos Cardoso ◽  
Lucas Braido Pereira ◽  
Ana Paula Machado Martini ◽  
Amanda Farias de Moura ◽  
Marcelo Ascoli da Silva ◽  
...  

The effect of termination of steers in a feedlot using the total substitution of soybean meal by slow-release or agriculture urea on the non-carcass components was evaluated. Twenty-seven purebred and Charolais × Nellore castrated crossbred steers (mean age 20 months, mean initial weight 293 kg) were allocated to received concentrates containing slow degradation urea, soybean meal, or agricultural urea. The experimental design was in randomized blocks (breed predominance), with three treatments and nine replicates, with the animal being the experimental unit. Diets did not lead to significant differences in empty body weight (EBW). The similarity between treatments was also verified in relation to EBW/slaughter weight, with mean values of 0.87 for treatments containing urea and 0.88 for soybean meal treatment. The gastrointestinal contents, both in absolute weight and in relation to EBW, were similar between the rations evaluated, with mean values of 54.33 kg and 13.52%, respectively. Steers fed with slow-release urea had a 32.8% higher weight of omasum relative to 100 kg of EBW (P < 0.05) compared to the animals fed with soybean meal.

2019 ◽  
Vol 40 (1) ◽  
pp. 353 ◽  
Author(s):  
Gilmar Dos Santos Cardoso ◽  
Leonel Da Silva Rodrigues ◽  
Diego Soares Machado ◽  
Camille Carijo Domingues ◽  
Mauren Burin da Silva ◽  
...  

The objective of this study was to evaluate the effect of crude protein substitution of soybean meal with urea (slow-release or otherwise) on the carcass and the meat characteristics of finished steers in confinement. Twenty-seven castrated, purebred and Charolais-Nelore crossbred steers with a mean age of 20 ± 1,5 months and initial mean live weight of 293 ± 31 kg, were distributed in three treatments: Protected Urea (concentrate containing slow degradation urea ); Soybean meal (concentrate containing soybean meal) and Urea Common (concentrate containing common urea). A randomized block experimental design (racial predominance) was used, with three treatments and nine replications, with the animal as the experimental unit. Feeding treatments did not influence the hot and cold carcass weight and yield. The fat thickness that covered the carcass was not altered, according to the diets studied, being on average 3.97 ± 0.94 mm. The measurements and the carcass compactness were not altered by the diets, presenting average values of 127.55; 74.86; 39.86; 38.84 and 25.72 cm for carcass length, leg and arm, arm perimeter and cushion thickness, respectively. A significant difference was observed in marbling, and the meat of the animals treated with soybean meal were higher than those treated with protected urea (3.72 vs 2.28 points).


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hani M. El-Zaiat ◽  
Ahmed E. Kholif ◽  
Ibrahim M. Khattab ◽  
Sobhy M.A. Sallam

Abstract The present experiment aimed to evaluate the partial replacement of soybean with slow-release urea (Optigen 1200™) in the diet of lactating cows for 84 d. Three-hundred multiparous lactating Holstein (635 ± 25 kg of body weight, BW) cows were stratified by live body weight; parity and previous milk production were randomly assigned into two experimental groups with 150 cows per each treatment. In the control treatment, 25 g soybean meal was replaced by 5.7 g slow-release urea for 84 d. Optigen treatment did not affect feed intake, daily milk production, milk composition, or milk (feed) efficiency; however, increased (P<0.01) total BW gain and daily BW gain. Optigen treatment increased (P<0.01) the digestibility of crude protein and neutral detergent fiber. Optigen treatment increased (P<0.01) estimated N balance, milk urea-N, and net energy (NE) for gain. Without affecting blood total protein, creatinine, urea-N, triglycerides, glucose, β-hydroxybutyrate, or non-esterified free fatty acids, Optigen treatment increased the concentrations of blood albumin and cholesterol compared to the control (P<0.05). In conclusion, slow-release urea could replace soybean meal in ruminant diets with no adverse effects on feed intake, nitrogen utilization, or digestibility; however, improve the total tract digestibility of fiber and crude protein in cows.


2015 ◽  
Vol 36 (6) ◽  
pp. 3827 ◽  
Author(s):  
Regis Luis Missio ◽  
João Restle ◽  
José Luiz Moletta ◽  
Fernando Kuss ◽  
José Neuman Miranda Neiva ◽  
...  

This study aimed to evaluate the effect of slaughter weight on animal performance, carcass commercial cuts and meat characteristics of Purunã cows feedlot finished. We used 28 cull cows with 68.02±17.36 months of age slaughtered at different weights (461, 476, 434 and 522 kg). The experimental design was completely randomized with four treatments (slaughter weight) and seven replicates (animals). The dry matter intake, expressed as kg d-1 and % of body weight, presented quadratic variation with increasing slaughter weight, with the highest values observed for slaughter weight of 461 kg. The average daily gain decreased linearly, whereas the absolute weight of forequarter, short ribs, and pistol cut linearly increased by the advance of slaughter weight. In relative terms only the short ribs was changed by increase slaughter weight, increasing linearly. Between the proportions of meat cuts prepared for commercialization, linear increases were observed for the chuck and striploin. Increasing slaughter weight promoted linear increases in the scores of color, marbling and palatability, but did not alter the score of tenderness of the meat. The increase of slaughter weight of cull cows of the Purunã breed reduces animal performance, increasing the losses by trimming fat, with important benefits only for the meat palatability.


2019 ◽  
Vol 64 (No. 7) ◽  
pp. 294-301
Author(s):  
S Gonzalez-Munoz ◽  
J Sanchez ◽  
S Lopez-Aguirre ◽  
J Vicente ◽  
J Pinos-Rodriguez

One in vitro assay and one in vivo trial with ruminally cannulated Holstein steers were conducted to evaluate the effects of a dietary substitution of soybean meal by a urea and slow-release urea source of fermentation and degradation of diets for cattle. The experimental diets consisted of the total mixed rations defined as the control with soybean meal (SBM), U (urea), SRU (slow-release urea), and SRU+U+AA (0.42% + 0.42% + 1% amino acids methionine and lysine). The dietary substitution of SBM by U or SRU reduced (P &lt; 0.05) the total gas production (V), microbial mass and degradation at 72 h incubation under the in vitro conditions, as well as the degradation rate (c) and the total volatile fatty acids (VFA) in the rumen of the steers; however, when the dietary substitution of SBM was by U+SRU+AA, those values did not decrease. In the steers, the dietary substitution of SBM by U and SRU reduced the ruminal degradation rate and the total VFA, and increased the ammonia N, but when SBM was substituted by U+SRU+AA in the diets, these changes were not observed. No advantage of SRU over U was found. The dietary substitution of SBM by U, SRU, U+SRU+AA did not modify the molar proportion of the VFA in the rumen nor were there changes in the nutrient digestion or excretion. Both the in vitro assay and the in vivo trial indicated that replacing SBM with U or SRU increases the ruminal ammonia N concentrations and reduces the degradation rate in the rumen, although those undesirable findings were not found when the SBM was replaced by U+SRU+AA. Therefore, it is feasible to replace the SBM with a combination of urea, slow-release urea, lysine and methionine in the diet for the ruminants.


2016 ◽  
Vol 38 (2) ◽  
pp. 155 ◽  
Author(s):  
Solano Felipe Just de Andrade ◽  
Ângela Maria Vieira Batista ◽  
Francisco Fernando Ramos de Carvalho ◽  
Rodrigo Barros de Lucena ◽  
Rafael De Paula Xavier de Andrade ◽  
...  

The objective was to evaluate the effect of partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus on performance and body weight components of sheep. Thirty hair lambs, with 19 kg ± 0.35 kg initial weight, were randomly divided into five treatments, namely: Tifton 85 Hay (HA); Tifton 85 Hay + fresh spineless cactus (HAFC); Tifton 85 Hay + dehydrated spineless cactus (HADC); fresh spineless cactus (FC); dehydrated spineless cactus (DC). In addition to the spineless cactus and hay, the complete mixture contained soybean meal, mineral salt and limestone in all treatments. Animals were confined for 75 days and then slaughtered. The weight of body components was recorded. Dry matter intake, total digestible nutrients intake and voluntary water intake were higher (p < 0.05) for the DC and HADC treatments. The average daily gain was 118 g day-1 and body weight at slaughter of 25.8 kg were not influenced (p > 0.05) by treatments. The cold carcass weight, rib eye area, weight and yield of the skin, liver, kidney and large intestine were higher (p < 0.05) for the DC and HADC treatments. Partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus, in complete diets for sheep, increases the weight of the cold carcass and non-carcass components. 


2018 ◽  
Vol 19 (2) ◽  
pp. 119
Author(s):  
Efka Aris Rimbawanto ◽  
Sri Suhermiyati ◽  
Bambang Hartoyo

The objectives of the research were to supply nitrogen for protein synthesis of ruminal microbe from slow release urea and to supply post-rumen protein from soybean meal protected with condensed tannin (CT) from crude Leucaena leaves extract. In Experiment 1, slow release urea (SRU) was made by extrusion of cassava waste-urea, tapioca meal-urea and cassava meal-urea. Evaluation of SRU properties was based on residual nitrogen concentration and ruminal fermentation products (total volatile fatty acid and ammonia-nitrogen) in vitro. In Experiment 2, soybean meal protected with CT from crude Leucaena leaves extract as much as 1,68 g tannin/100 g DM soybean meal. SRU that was selected from Experiment 1 was used as the supplement in sheep ration whose protein source was protected with CT. SRU supplement in basal rations was 0, 6.36, 12.75, 19.11% DM. In vitro result in Experiment 1, showed that SRU of cassava waste, tapioca meal and cassava meal were different (P<0,01) on residual nitrogen content, total VFA, ammonia-N, and fermentation time. The optimum SRU obtained from cassava waste by inhibiting nitrogen hydrolysis up to 14 h. In Experiment 2, SRU supplementation of cassava waste on basal ration whose protein source was protected with CT increased dry matter (DM) degradability (P<0,01), total VFA (P<0,01), ammonia-N (P<0,01), and did not affect crude protein (CP) ruminal degradation. Post-ruminal degradability of DM and CP increased (P<0.01) in line with the increasing supplement, and reached the optimum level at 12,75 – 19,11% DM. In conclusion, cassava waste was a potent SRU through extrusion process and could be harnessed as SRU supplement in ration with protein source protected with condensed tannin to improve ruminal microbe protein synthesis.


2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2793 ◽  
Author(s):  
Luiz Juliano Valério Geron ◽  
Sílvia Cristina de Aguiar ◽  
Joilma Toniolo Honório de Carvalho ◽  
Gregory Duarte Juffo ◽  
Ana Paula da Silva ◽  
...  

This study aimed to evaluate the inclusion of 0.0%, 0.4%, 0.8%, and 1.2% slow release urea (SRU) in sheep feed on the intake and total digestibility coefficient (DC) of nutrients and ruminal parameters of sheep living in tropical regions. Four sheep with a body weight (BW) average of 30.8 ± 1.7 kg were assigned to a Latin square design. The animals were placed in metabolic cages and received two meals a day. Intake data and DC of nutrients of the sheep were subjected to analysis of variance and differences were tested using a regression equation to 5% probability. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% SRU in sheep feed did not change (p &gt; 0.05) the intake of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral or acid detergent fiber (NDF, ADF), total carbohydrates (TC), and non-fibrous carbohydrate (NFC) expressed in g animal-1 day-1, g (kg0.75)-1, and % BW. The mean values of 3.04%, 2.82%, 0.41%, 0.07%, 1.36%, 0.87%, 2.31%, and 1.00% of BW were obtained for the intake of DM, OM, CP, EE, ANF, ADF, TC, and NFC, respectively. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% of SRU in sheep rations had a quadratic manner (p &lt; 0.05) the DC of DM and CP, with maximum values of 69.67% and 63.59%, respectively, for 0.51% and 0.66% levels of SRU inclusion in the experimental diets. The pH of the rumen fluid did not vary (p &gt; 0.05) for different levels of inclusion of SRU in the feed. However, the pH of the rumen fluid did differ (p &lt; 0.05) in relation to time (T) after feeding for all experimental diets. The inclusion levels of SRU in sheep feed did not affect (p &gt; 0.05) the concentration of ammonia nitrogen (NH3-N) of the rumen fluid, but there was a quadratic effect (p &lt; 0.05) with relation to T for all experimental diets. Thus, we conclude that the inclusion of 0.66% SRU provides the best digestibility value of CP and is the appropriate value for the digestion of DM. The inclusion of up to 1.2% of SRU in sheep rations did not change the intake of nutrients and ruminal parameters.


2014 ◽  
Vol 165 ◽  
pp. 51-60 ◽  
Author(s):  
P.D.B. Benedeti ◽  
P.V.R. Paulino ◽  
M.I. Marcondes ◽  
S.C. Valadares Filho ◽  
T.S. Martins ◽  
...  

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
PENI WAHYU PRIHANDINI ◽  
DYAH MAHARANI ◽  
Sumadi Sumadi

Abstract. Prihandini PW, Maharani D, Sumadi. 2020. Body weight, body measurements, and slaughter characteristics of Madura cattle raised in Pamekasan District, East Java Province, Indonesia. Biodiversitas 21: 3415-3421.  This study was designed to analyze the body weight, body measurements and slaughter characteristics of Madura cattle raised in Pamekasan district, East Java province, Indonesia. A total of 2,373 records on live body weight and body measurements (body length, height at withers and chest girth), and 69 records on slaughter traits (slaughter, carcass, and meat weight, as well as carcass and meat percentage) from both sexes were used. Sampled animals were divided into three groups based on age (calf: 0- to10-month-old; young: 11- to 24-month-old; adult: >24-month-old). The data were analyzed using independent sample t-test to assess significant differences between sex groups and subjected to multiple linear regression analyses to obtain prediction equations of body weight from body measurements, carcass weight from slaughter weight, and meat weight from slaughter- and carcass-weight. Results showed that body weight, height at withers, and chest girth between male and female cattle in all age groups were significantly different (P<0.05). Male cattle showed higher slaughter weight, carcass weight and carcass percentage mean values than female cattle. Body measurements showed high correlation with body weight (r ≥0.80). Height at withers, body length, and chest girth represented good body measurements to predict body weight (R2 = from 0.65 to 0.83). Moreover, as observed, high correlations between slaughter weight and carcass- (r = 0.94; R2 = 0.89) and meat-weight (r = 0.99; R2 = 0.98) would imply that meat weight could be predicted accurately from slaughter- and carcass-weight.


2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Rindu Awalia Tarigan ◽  
Tri Hesti Wahyuni ◽  
Hamdan ◽  
Iskandar Sembiring ◽  
Nurzainah Ginting

RINDU AWALIA, 2018: “Forage Substitution with Waste Media for White Oyster Mushroom Planting Fermentation on Percentage of Carcass at Local Sheep”. Supervised by TRI HESTI WAHYUNI and HAMDAN. The study aimed to determine the percentage of carcass in local sheep given the waste of fermented white oyster mushroom growing media as an alternative feed, carried out in NamoTrasi Village, Pasar VIII, October - December 2017. Using local sheep the average initial weight was 9 ± 0.25 kg. The design used was a completely randomized design (CRD) with 4 treatments and 5 replications namely P0 = grass 60% + concentrate 40%. P1, P2, and P3 respectively are 45%, 30%, 15% grass, and fermented white oyster mushroom planting media waste 15%, 30%, 45% and 40% Concentrate. The results showed that the slaughter weight (kg / head) was: 13.67; 13,92; 13,81; and 13.78. Empty body weight (kg / tail): 8.98; 9,16; 9,10; and 9.01. Carcass weight (kg / head): 5.23; 5.40; 5,34; and 5.17. In the percentage of carcass (%): 58.12; 58.97; 58.52; and 57.33. So it can be concluded that the waste of fermented white oyster mushroom growing media can substitute forage as a feed for local sheep but cannot increase the percentage of carcass component.


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