scholarly journals Performance and economic analysis of finished lambs in feedlot

2016 ◽  
Vol 37 (1) ◽  
pp. 293 ◽  
Author(s):  
Euclides Reuter de Oliveira ◽  
Flávio Pinto Monção ◽  
Andréa Maria de Araújo Gabriel ◽  
Felipe De Souza Santos Abreu ◽  
Lais Valenzuela Moura ◽  
...  
Keyword(s):  
Economic Performance ◽  
Cynodon Dactylon ◽  
Block Design ◽  
Economic Returns ◽  
Financial Measures ◽  
Randomized Complete Block Design ◽  
Feedlot Lambs ◽  
Management Cycle ◽  
Average Body ◽  
Average Body Weight

This study aimed to evaluate animal performance and economic performance of feedlot crossbred lambs (½ Santa Inês+ ½ Suffolk) fed different diets based on hay from Cynodon dactylon genotypes, through the use of financial measures considering only the period of confinement, without relating it to the complete management cycle. A total of 30 intact crossbred Suffolk lambs, identified with earrings, with an average age of 90 days and an average body weight of 21.5 kg were used in this study. Diets were formulated using as treatments a standard concentrate and hay of the Cynodon dactylon genotypes Jiggs, Vaquero, Tifton 68, Coast-Cross, Tifton 85 and Russell in a 60:40 forage-to-concentrate ratio. The treatments were distributed in a randomized complete block design with five replicates. There were significant differences between diets in terms of total expenditure on food, and the highest values were obtained for the Jiggs genotype (BRL 48.96/animal). The animals fed diets based on Tifton 68 hay had a higher rate of return (2.16%) and profitability (34.63%) compared to the other diets. The use of diets based on Tifton 68 hay for feedlot lambs in the finishing phase brings higher economic returns compared to the remaining diets.

scholarly journals Performance and digestibility in feedlot lambs fed hay based diets

2016 ◽  
Vol 38 (4) ◽  
pp. 425
Author(s):  
Euclides Reuter de Oliveira ◽  
Flávio Pinto Monção ◽  
Andréa Maria de Araújo Gabriel ◽  
Alexandre Rodrigo Mendes Fernandes ◽  
Lais Valenzuela Moura ◽  
...  
Keyword(s):  
Chromium Oxide ◽  
Dry Matter ◽  
Cynodon Dactylon ◽  
Block Design ◽  
Evaluation Methods ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Dry Matter Digestibility ◽  
Feedlot Lambs ◽  
Fecal Collection

This study aimed to evaluate the performance of feedlot lambs fed diets formulated with hay of different genotypes of Cynodon spp. and to compare the dry matter digestibility of diets using different evaluation methods (total fecal collection and chromium oxide). Suffolk crossbred neutered male lambs (n=30), with an average age of 90 days and average body weight of 21.5 kg ± 1.6. Diets were formulated using a standard concentrate and hay of the following genotypes of Cynodon dactylon: Jiggs, Vaquero, Tifton 68, Coast-Cross, Tifton 85 and Russell, in a 60:40 forage concentrate ratio, composing the treatments distributed in a randomized block design in a factorial 5 x 2 arrangement of 5 diets and 2 digestibility evaluation methods. Animals receiving Vaquero hay showed dry matter intake of 18.3; 16.9; 25.6; 20.7 and 24.2% higher than those fed hay of Jiggs, Tifton 68, Coast Cross, Tifton 85 and Russell, respectively. There was no difference between diets for digestibility using total fecal collection, chromium oxide and final weight of animals. Jiggs hay based diets allowed greater daily weight gain and better feed conversion. 

scholarly journals PSXII-14 Fiber content in diets for feedlot lambs: performance

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 424-424
Author(s):  
Evandro M Ferreira ◽  
Nathalia R Eckermann ◽  
Janaina S Biava ◽  
Jamile Comelli ◽  
Thamires U Sturion ◽  
...  
Keyword(s):  
Interaction Effect ◽  
Block Design ◽  
Fiber Content ◽  
Great Success ◽  
Real Possibility ◽  
Quadratic Effect ◽  
Randomized Complete Block Design ◽  
Ram Lambs ◽  
Feedlot Lambs ◽  
The Ideal

Abstract High-grain diets have been used with great success in the feedlot systems for lambs production in Brazil. Then it became important to define the ideal dietary fiber content in the diet when the goal is to produce heavy lambs for early slaughter. The objective in this trial was to evaluate the levels of fiber on performance of lambs feed high-grain diet. Fifty-eight Dorper x Santa Inês ram lambs (initial BW 20.7 ± 1.19 kg and 75 ± 10.83 d old) were assigned to a randomized complete block design. The treatments were defined by the fiber (“Coastcross” hay) content in diets (CP: 16,12% ± 0.92): 0F: no forage diet (NDF: 10.4%); 5F: 5% of forage (NDF: 12.1%); 10F: 10% of forage (NDF: 15%); 15F: 15% of forage (NDF: 15.5%); 20F: 20% of forage (NDF: 20.8%) and 25F: 25% of forage (NDF: 23.5%). The experiment lasted 89 days and lambs were weighted after 16 hours fasting on days 0, 31, 57 and 89. DMI, ADG and FE were determined in each period. There was no interaction effect between diets and periods. There was a quadratic effect in DMI (0F: 0.96; 5F: 0.97; 10F: 1.04; 15F: 1.00; 20F: 1.02; 25F: 0.88 kg/d; P = 0.02), ADG (0F: 0.27; 5F: 0.26; 10F: 0.28; 15F: 0.28; 20F: 0.26; 25F: 0.21 kg/d; P = 0.01) and FE (0F: 0.28; 5F: 0.28; 10F: 0.28; 15F: 0.29; 20F: 0.26; 25F: 0.25; P = 0.05). Consequently, the increased levels of forage result in quadratic effect on final BW (0F: 44.5; 5F: 44.7; 10F: 46.1; 15F: 45.5; 20F: 43.9; 25F: 39.7 kg; P < 0.01). In conclusion, the inclusion of 10–15% of forage improves the performance of feedlot lambs feed high-concentrate diets, but it was proved the real possibility of finishing lambs with diet without forage source.

scholarly journals PSXII-17 Fiber content in diets for feedlot lambs: carcass characteristics

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 422-423
Author(s):  
Janaina S Biava ◽  
Nathalia R Eckermann ◽  
Thamires U Sturion ◽  
Daniel M Polizel ◽  
Paulo Dias Junior ◽  
...  
Keyword(s):  
Block Design ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Carcass Yield ◽  
Randomized Complete Block Design ◽  
Quadratic Response ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Feedlot Lambs

Abstract The objectives of this trial were to evaluate the effects of levels of fiber in high-grain diets on carcass characteristics of feedlot lambs. Fifty-eight Dorper x Santa Inês ram lambs (initial BW 20.7 ± 1.19 kg and 75 ± 10.83 d old) were assigned to a randomized complete block design. The treatments were defined by the fiber (“Coastcross” hay) content in the diets (CP: 16,12% ± 0.92): 0F: no forage diet (NDF: 10.4%); 5F: 5% of forage (NDF: 12.1%); 10F: 10% of forage (NDF: 15.0%); 15F: 15% of forage (NDF: 15.5%); 20F: 20% of forage (NDF: 20.8%) and 25F: 25% of forage (NDF: 23.5%). The experiment lasted 89 days, at the end of this time, the animals were slaughtered (169 ± 10.83 d old) to evaluate carcass characteristics. There was a quadratic response for slaughter BW (0F: 46.3; 5F: 48.1; 10F: 49.4; 15F: 50.3; 20F: 48.5; 25F: 43.3 kg; P < 0.01), hot carcass weight (0F: 24.8; 5F: 25.6; 10F: 26.0; 15F: 25.7; 20F: 24.3; 25F: 21.8 kg; P = 0.01), cold carcass weight (0F: 24.3; 5F: 25.1; 10F: 25.4; 15F: 25.1; 20F: 23.8; 25F: 21.2 kg; P = 0.01) and longissimus dorsis area (0F: 16.3; 5F: 16.5; 10F: 17.4; 15F: 16.5; 20F: 16.0; 25F: 15.1 cm2; P = 0.04). There was a linear decrease in the hot carcass yield (0F: 53.0; 5F: 53.3; 10F: 52.5; 15F: 50.9; 20F: 50.1; 25F: 50.2%; P < 0.01), cold carcass yield (0F: 52.0; 5F: 52.2; 10F: 51.4; 15F: 49.8; 20F: 49.0; 25F: 48.9%; P < 0.01) and body wall thickness (0F: 16.2; 5F: 17.0; 10F: 16.3; 15F: 16.3; 20F: 15.1; 25F: 13.6 kg; P = 0.01). There was no effect on subcutaneous fat thickness. In conclusion, the diet with up to 5% of forage allowed higher carcass yield; however, the heavier carcasses were produced by the lambs that received 10F diet.

scholarly journals PSX-25 Narasin inclusion and levels of forage on performance of feedlot lambs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 458-459
Author(s):  
Lairana A Sardinha ◽  
Daniel M Polizel ◽  
Alexandre A Miszura ◽  
Arnaldo C Limede ◽  
José P R Barroso ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Repeated Measures ◽  
Block Design ◽  
Average Daily Gain ◽  
Fasting Period ◽  
Randomized Complete Block Design ◽  
Period Data ◽  
Feedlot Lambs ◽  
Second Period ◽  
Daily Gain

Abstract The objective of this study was to determinate the effects of forage levels and narasin inclusion on the performance of feedlot lambs. Forty-four lambs were allotted in a randomized complete block design, defined by initial body weight (BW), in a 2x2 factorial arrangement. The first factor was forage (coastcross hay) inclusion (10 or 20%, DM basis) and the second factor was narasin (0 or 13 ppm). The experimental diets were isonitrogenous (17.4%, DM basis). The experiment lasted 112 days, divided into two periods of 56 d each. The lambs were weighed after a fasting period of 14 hours on days 0, 56, and 112. Average daily gain (ADG), dry matter intake (DMI) and feed efficiency (FE) were determined in each period. Data were analyzed as repeated measures over time using the MIXED procedure of SAS and the LSMEANS option was used to obtain the means. The effects were considered significant when P < 0.05. There was no interaction between forage levels and narasin inclusion. Narasin did not affect the DMI, ADG, and FE. There was hay levels and period interaction for DMI and ADG. Increase levels of hay did not affect the DMI during the first period; however, 20% of hay inclusion increased DMI in the second period (1.16 vs 1.30 kg/d; P = 0.01). The inclusion of 10% of hay increased the ADG in the first period (0.28 vs 0.24 kg/d; P < 0.01), however, there was no effect in the second period. Consequently, 10% of forage inclusion increased the FE (0.23 vs 0.21; P = 0.01). In summary, diets containing 10% of forage improves the FE, and narasin inclusion did not affect the lamb’s performance.

scholarly journals PSXII-15 Fiber content in diets for feedlot lambs: ruminal and cecal pH and short chain fatty acids

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 424-425
Author(s):  
Evandro M Ferreira ◽  
Nathalia R Eckermann ◽  
Janaina S Biava ◽  
Matheus Avelino ◽  
Letícia Pasqualino ◽  
...  
Keyword(s):  
Block Design ◽  
Short Chain Fatty Acids ◽  
Fiber Content ◽  
Ph Variation ◽  
Quadratic Effect ◽  
Ruminal Ph ◽  
Randomized Complete Block Design ◽  
Quadratic Response ◽  
Ram Lambs ◽  
Feedlot Lambs

Abstract Fifty-eight Dorper x Santa Inês ram lambs (initial BW 20.7 ± 1.19 kg and 75 ± 10.83 d old) were assigned to a randomized complete block design to evaluate the effects of fiber content on ruminal and cecal pH and SCFA. The treatments were defined by the fiber (“Coastcross” hay) content in diets (CP: 16,12% ± 0.92): 0F: no forage diet (NDF: 10.4%); 5F: 5% of forage (NDF: 12.1%); 10F: 10% of forage (NDF: 15%); 15F: 15% of forage (NDF: 15.5%); 20F: 20% of forage (NDF: 20.8%) and 25F: 25% of forage (NDF: 23.5%). The experiment lasted 89 days, at the end of the experiment the lambs were slaughtered without fasting. The forage inclusion linear decreased ruminal concentration of propionate (0F: 45.4; 5F: 39.7; 10F: 41.5; 15F: 39.4; 20F: 35.3; 25F: 30.5 mM/100mM; P < 0.01) and total SCFA (0F: 106.6; 5F: 96.4; 10F: 84.2; 15F: 90.6; 20F: 63.0; 25F: 71.2 mM; P = 0.01) and increased the ruminal concentration of acetate (0F: 43.4; 5F: 45.3; 10F: 47.8; 15F: 49.8: 20F: 51.8; 25F: 57.2 mM/100mM; P < 0.01). However, there was a quadratic effect on ruminal pH (0F: 5.61; 5F: 5.66; 10F: 5.98; 15F: 6.27; 20F: 6.05; 25F: 5.74; P = 0.01). There was no effect of fiber levels on cecal concentration of acetate, propionate, butyrate and acetate:propionate ratio. Nevertheless, there was a linear decrease in cecal concentration of valerate (0F: 3.28; 5F: 2.35; 10F: 2.39; 15F: 2.64: 20F: 2.12; 25F: 1.80 mM/100mM; P < 0.01) and total SCFA (0F: 173.9; 5F: 165.7; 10F: 153.2; 15F: 155.2; 20F: 139.9; 25F: 128.9 mM; P < 0.01). Similarly to rumen, cecal pH presented a quadratic response (0F: 5.92; 5F: 6.12; 10F: 6.15; 15F: 6.23; 20F: 6.30; 25F: 5.83; P < 0.01). In conclusion, cecal fermentation was different from rumen fermentation. However, pH variation was similar, with higher values for 15F diet.

scholarly journals IMBANGAN HIJAUAN DAN KONSENTRAT DALAM RANSUM TERHADAP RESPON FERMENTASI RUMEN DAN SINTESIS PROTEIN MIKROBA PEDET SAPI BALI CALON INDUK

2018 ◽  
Vol 21 (2) ◽  
pp. 60
Author(s):  
BUDIASA I K. M. ◽  
N. N. SURYANI ◽  
I W. SUARNA
Keyword(s):  
Protein Synthesis ◽  
Energy Supply ◽  
Block Design ◽  
Microbial Protein ◽  
Host Animal ◽  
Microbial Protein Synthesis ◽  
Randomized Block Design ◽  
Average Body ◽  
Average Body Weight

In order to fulfill the domestic meat requirements and reduce imports so government continually develop localbeef cattle based on their quantity and quality of meat. Among the local cattle in Indonesia, Bali cattle is the mostfavourite cattle (32.31%) considering on its meat quality. There were 12 calves used in this research with 100 kgof average body weight. The treatments were diet with 40% concentrate and 60% king grass (A); 45% concentrateand 55% king grass (B); 50% concentrate and 50% king grass (C); 55% concentrate and 45% king grass (D). Theexperiment was design in a completely randomized block design with four treatments and three replicates. Thevariables measured were rumen fermentation as of pH, NH3, total and pastial of VFA (acetic acid, propionic acidand butyric acid), microbial protein synthesis and protozoa populations. It showed that treatment D produce thehighest NH3 and total VFA, 14.66 mMol, and 165.38 mMol respectively compared to other treatments. Propionicacid was 27.87 mMol the highest in treatment D and 368.62 g/h/d microbial protein synthesis. It can be concludedthe higher proportion of concentrate in the bali heifer calves so the more energy supply, in this case, SPM availabilityfor the host animal is higher.

scholarly journals Respon Fisiologis Domba Lokal Dengan Frekuensi Pemberian Pakan dan Taraf Konsentrat Limbah Ulat Hongkong (Tenebrio molitor) yang Berbeda

2020 ◽  
Vol 8 (1) ◽  
pp. 48-53
Author(s):  
M. A. H. Kirjin ◽  
S. Rahayu ◽  
M. Baihaqi
Keyword(s):  
Respiration Rate ◽  
Pulse Rate ◽  
Rectal Temperature ◽  
Block Design ◽  
Physiological Responses ◽  
Feeding Frequency ◽  
Randomized Block Design ◽  
Effect Of Feeding ◽  
Average Body ◽  
Average Body Weight

The aim of this research was to evaluate the effect of feeding frequency and level of Tenebrio molitor’s waste concentrate (TMC) on the physiological response of local sheep. A total 18 rams aged Io (8 months) with an average body weight of 14.72±2.44 kg (CV 16.91%) were used in this research. The reserch using 3x2 factorial randomized block design. Firts treatment was feeding frequency (2, 3 and 4 times/day) and second treatment was level of TMC ration (70% and 35% of TMC). The variables observed were physiological responses (pulse rate, rectal temperature, and respiration rate). The data were analyzed by ANOVA. The results showed that there was interaction effect between feeding frequency and TMC level on pulse rate and rectal temperature of sheep. The level of 35% TMC was significantly higher (P<0.05) on respiration rate than 70% TMC when the sheep feed in the morning. The research concluded that frequency of feeding and the level TMC had a significant effect on physiological responses in local rams.

scholarly journals Phytotoxicity of herbicides on Cynodon dactylon

2015 ◽  
Vol 7 (2) ◽  
pp. 832-835
Author(s):  
Siddappa Siddappa ◽  
B. L. Geeta ◽  
Raj Likhitha ◽  
K. V. Jayaprasad ◽  
Revannappa R. Bandri
Keyword(s):  
Cynodon Dactylon ◽  
Sandy Loam ◽  
Block Design ◽  
Experimental Plot ◽  
Randomized Complete Block Design ◽  
Broad Leaf ◽  
Dimethyl Amine ◽  
Phytotoxic Effect ◽  
Loam Soil ◽  
Hand Weeding

Field experiment was conducted to manage the sedge and broad leaf weeds in lawn during November to December 2013 to February to March 2014. Experimental plot was red sandy loam soil with pH 6.50.The experimental plot consisted of bermuda grass Cynodon dactylon which was established through turfing. The experimental plot was laid out in a randomized complete block design (RCBD) having 17 treatments with three replications. Herbicide treatments include 2, 4-D sodium salt 80 WP at (2, 3 and 4g/lit of water), 2, 4-D dimethyl amine salt 58% EC at (5, 7.5 and 10 ml/lit of water), carfentrozone ethyl 40 DF at (0.25, 0.5 and 1 g/lit of water), fluroxypyr meptyl 48% EC at (1.5, 3 and 6 ml/lit of water) and chlorimuron methyl + metasulfuron methyl at (0.3, 0.4 and 0.5 g/lit of water). Hand weeding was done at every 20 days interval at 20 days after application of herbicides and also maintained one unweeded control in during November to December and February to March. The phytotoxic symptoms were observed only fluroxypyr meptyl 48% EC applied at 6 ml/lit of water at 3, 7, 10, 15 and 25 days after application of herbicides (DAAH) but it recovered at later stages. However, the other herbicides did not cause any phytotoxic effect on C. dactylon.

scholarly journals Do Wetting Agents Influence Golf Ball Roll Distance?

2020 ◽  
Vol 30 (3) ◽  
pp. 404-410
Author(s):  
Travis Wayne Shaddox ◽  
Joseph Bryan Unruh
Keyword(s):  
Water Content ◽  
Cynodon Dactylon ◽  
Block Design ◽  
Volumetric Water Content ◽  
Golf Ball ◽  
Putting Greens ◽  
Randomized Complete Block Design ◽  
Putting Green ◽  
Wetting Agents

Wetting agents are commonly applied to golf putting greens to manage soil moisture. Speculation has arisen regarding the influence of wetting agents on golf ball roll distance. The objective of this study was to determine the influence of wetting agents on golf ball roll distance, putting green surface firmness, and volumetric water content in sand-based putting greens. This study was conducted during the 2018 growing season in Jay, FL and Ft. Lauderdale, FL on ‘TifEagle’ hybrid bermudagrass (Cynodon dactylon × C. transvaalensis) putting greens. Treatments were applied to plots (2 × 3 m) in a randomized complete block design using four replications, and included seven wetting agents and an untreated turfgrass control. The study area was irrigated at 80% of the previous week’s reference evapotranspiration. Ball roll distance, firmness, and volumetric water content (VWC) were recorded weekly and pooled by month. Wetting agents did not lead to an increase in ball roll distance, firmness, or VWC during any month in Jay or Ft. Lauderdale. Inversely, in Jay, polyoxyalkylene polymer resulted in decreased surface firmness during October and November compared with untreated turfgrass. VWC was reduced as a result of some wetting agents in Ft. Lauderdale in February, September, November, and December, and resulted in no influence on VWC in Jay. The coefficients of determination of surface firmness and ball roll distance in Jay and Ft. Lauderdale were significant (P < 0.001) and were 0.12 and 0.08, respectively. This indicates that ball roll distance can increase as surfaces become firmer. However, this study found no evidence that wetting agents increase ball roll distance on sand-based putting greens.

scholarly journals PSX-26 Levels of forage and narasin inclusion on rumen fermentation in feedlot lambs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 456-457
Author(s):  
Lairana A Sardinha ◽  
Daniel M Polizel ◽  
Alexandre A Miszura ◽  
Arnaldo C Limede ◽  
José P R Barroso ◽  
...  
Keyword(s):  
Short Chain Fatty Acid ◽  
Rumen Fluid ◽  
Block Design ◽  
Experimental Period ◽  
Chain Fatty Acid ◽  
Initial Body Weight ◽  
Ruminal Ph ◽  
Content Change ◽  
Randomized Complete Block Design ◽  
Feedlot Lambs

Abstract The objective of this study was to determine the effects of forage levels and narasin inclusion in diets on the rumen parameters in feedlot lambs. Forty-four lambs were allotted in a randomized complete block design, defined by initial body weight, in a 2x2 factorial arrangement. The first factor was forage inclusion (10 or 20% of coastcross hay, DM basis) and the second factor was narasin (0 or 13 ppm). The experimental diets were isonitrogenous (17.4%, DM basis). At the end of the experimental period, the lambs were slaughtered without fasting, and the rumen fluid was collected to determinate pH and short chain fatty acid (SCFA). Data were analyzed using the MIXED procedure of SAS and the LSMEANS option was used to obtain the means. The effects were considered significant when P &lt; 0.05. There was an interaction between hay and narasin on the molar proportion of propionate (P = 0.02) and the acetate:propionate ratio (P &lt; 0.01). Narasin inclusion in diets containing 20% forage increased propionate (25.4 vs 37.1 mM/100mM; P = 0.02); however, there was no effect in diets containing 10% forage (35.9 ± 1.75 mM/100Mm). Consequently, the narasin decreased acetate:propionate ratio in diets containing 20% forage (2.57 vs 1.42; P &lt; 0.01), and no effect was observed 10% forage diets (1.40 ± 0.14). The inclusion of narasin increased the total SCFA (86.2 vs 115.4 mM; P &lt; 0.01), ruminal pH (6.26 vs 6.49; P = 0.05) and decreased acetate (55.6 vs 47.6 mM/100mM; P &lt; 0.01). The inclusion of 20% forage increased acetate when compared with 10% hay (54.99 vs 48.19 mM/100mM; P &lt; 0.01) and the pH ruminal (6.25 vs 6.49; P = 0.04). The experimental diets did not affect the butyrate. In summary, the narasin inclusion and forage levels content change rumen parameters in feedlot lambs.

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