scholarly journals Zootechnical Fattening Protocol for Mixed Breed Young Bulls with Zoo-sanitary Management System

2021 ◽  
Vol 78 (1) ◽  
pp. 129
Author(s):  
Hani SAOUDI ◽  
Amel SAOUDI ◽  
Adila FARTAS ◽  
Leila AOUN
Keyword(s):  
Beef Cattle ◽  
Sodium Bicarbonate ◽  
Average Daily Gain ◽  
Production Costs ◽  
Mixed Breed ◽  
Tomato Pulp ◽  
Digestive Disorders ◽  
Fillet Yield ◽  
The Cost ◽  
Daily Gain

The objective of this study is to reduce the cost of raising beef cattle in Algeria by proposing a Zootechnical fattening protocol for breeders. The study was carried out on mixed-breed young bulls (Charolais x local breeds). Food rations were distributed daily; the first ration (F1) was made up of soybeans while the second ration (F2) was made of tomato pulp supplemented with sodium bicarbonate. Parameters calculated were the Average Daily Gain (ADG), quantity of faeces eliminated, and weight of each bull. The ADG results shown in F1 and F2 are close. The addition of Sodium Bicarbonate in the F2 ration helps to alleviate certain digestive disorders, particularly acidosis and diarrhoea; therefore, reducing the production costs per kg of meat obtained from bulls fed with tomato which was available annually. The proposed protocol improved fillet yield and lowered the cost per kg of meat. It can be applied internationally in any rudimentary livestock farm.

scholarly journals A bio-economic model to improve profitability in a large national beef cattle population

2017 ◽  
Vol 15 (3) ◽  
pp. e0406 ◽  
Author(s):  
Javier López-Paredes ◽  
Jose-Antonio Jiménez-Montero ◽  
Maria-Angeles Pérez-Cabal ◽  
Oscar González-Recio ◽  
Rafael Alenda
Keyword(s):  
Beef Cattle ◽  
Economic Model ◽  
Young Animal ◽  
Average Daily Gain ◽  
Production Costs ◽  
Calving Interval ◽  
Cattle Population ◽  
Economic Values ◽  
Age At First Calving ◽  
Daily Gain

A bio-economic model was developed for estimating economic values for use in improving profitability in a large national beef cattle population from birth to slaughter. Results were divided into fattening costs, production costs and income. Economic values were derived for 17 traits for two regions, mature weight (-0.43 € and -0.38 €/+1 kg of live weight), age at first calving (-0.13 € and -0.11 €/+1d), calving interval (-1.06 € and -1.02 €/+1d), age at last calving (0.03 € and 0.03 €/+1d), mortality 0-48 h (-5.86 € and -5.63 €/1% calves per cow and year), pre-weaning mortality (-5.96 € and -5.73 €/+1% calves per cow and year), fattening mortality (-8.23 € and -7.88 €/+1% calves per cow and year), adult mortality (-8.92 € and -7.34 €/+1% adult cows per cow and year), pre-weaning average daily gain (2.56 € and 2.84 €/+10g/d), fattening young animals average daily gain (2.65 € and 3.00 €/+10g/d), culled cow in fattening average daily gain (0.25 € and 0.16 €/+10g/d), culled cow dressing carcass percentage (3.09 € and 2.42 €/+1%), culled cow price (4.59 € and 3.59 €/+0.06 €/kg), carcass conformation score (16.39 € and 15.3 €/+1 SEUROP class), dressing carcass rate of calf (18.22 € and 18.23 €/+1%), carcass growth (9.00 € and 10.09 €/+10g of carcass weight/d) and age at slaughter (0.27 € and 0.44 €/+1d). Two sample herds were used to show the economic impact of calving interval and age at first calving shortening in the profit per slaughtered young animal, which was 178 € and 111 € for Herds A and B, respectively. The economic values of functional traits were reduced and production traits were enhanced when fertility traits were improved. The model could be applied in a Spanish national program.

Corn or soybean hull incorporation into haylage-based backgrounding beef cattle diets: Effect on growth and efficiency during the backgrounding and finishing periods

2007 ◽  
Vol 87 (4) ◽  
pp. 615-621 ◽  
Author(s):  
K. C. Swanson ◽  
M. Ko ◽  
C. J. Mader
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Soybean Hulls ◽  
Feedlot Performance ◽  
Final Body Weight ◽  
Plasma Urea ◽  
Soybean Hull ◽  
Daily Gain

This experiment was conducted to evaluate the effects of corn or soybean hull incorporation into haylage-based diets on backgrounding calf performance and subsequent feedlot performance. Crossbred steers [n = 48, initial body weight (BW) = 303 ± 3.4 kg] were individually fed dietary treatments consisting of: (1) haylage [17.5% crude protein, dry matter (DM) basis; control], (2) haylage + 20% (DM basis) cracked corn, and (3) haylage + 20% (DM basis) soybean hulls during a 112-d backgrounding period. After the backgrounding period, all steers were adapted to a common high moisture corn-based finishing diet and fed until an ultrasound estimated backfat thickness of 7 mm was obtained. During the backgrounding period, steers fed cracked corn or soybean hulls had greater (P < 0.01) average daily gain, dry matter intake and gain:feed and lower (P = 0.05) plasma urea N as compared with controls. However, when finished on a common high-concentrate diet, steers previously fed cracked corn had greater (P < 0.08) average daily gain, final body weight, and longissimus muscle area than those fed soybean hulls, suggesting that source of supplemental energy during the backgrounding period may influence subsequent feedlot performance. Key words: Beef cattle, backgrounding, energy supplementation

Synovex® H as a prenatal androgenizing agent in beef cattle: Effects on the implanted pregnant heifer

1995 ◽  
Vol 75 (4) ◽  
pp. 543-548 ◽  
Author(s):  
S. L. Aldrich ◽  
L. L. Berger ◽  
D. J. Kesler ◽  
D. B. Faulkner ◽  
J. W. Castrée
Keyword(s):  
Beef Cattle ◽  
Average Daily Gain ◽  
Control Group ◽  
Serum Concentrations ◽  
Calving Ease ◽  
Calving Rate ◽  
And Control ◽  
Daily Gain ◽  
Estradiol Levels ◽  
Pregnancy Hormones

A study was conducted to evaluate the effectiveness of Synovex® H as an agent for prenatal androgenization in beef cattle. Thirty Charolais-cross heifers, exposed to a fertile bull during a 55-d spring breeding season, were randomly assigned to a control group or implanted with three times the normal dose of Synovex® H between days 20 and 75 of gestation. Serum concentrations of testosterone, estradiol, and progesterone, calving rate, and growth performance were determined in the pregnant heifers. Testosterone levels were greater (P < 0.001) in treated heifers than in control heifers. Synovex® H treatment had no affect on estradiol levels. Progesterone levels were lowered (P < 0.05) in treated heifers. Synovex® H treatment decreased (P < 0.05) calving rate and birth weight of calves born to treated heifers. Calving ease scores were not affected by Synovex® H treatment. Weight was not affected; however, average daily gain was improved 7% by Synovex® H treatment (0.88 vs. 0.82 ± 0.04 kg d−1, treated and control heifers, respectively). These results are interpreted to suggest that Synovex® H is not an appropriate androgenizing agent for cattle due to adverse effects on progesterone concentrations during pregnancy and on calving rate. Key words: Cattle, prenatal androgenization, Synovex® H, pregnancy, hormones

Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle

2012 ◽  
Vol 92 (3) ◽  
pp. 327-341 ◽  
Author(s):  
E. M. McGregor ◽  
C. P. Campbell ◽  
S. P. Miller ◽  
P. P. Purslow ◽  
I. B. Mandell
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
High Energy ◽  
Ad Libitum ◽  
Limit Feeding ◽  
Daily Gain

McGregor, E M., Campbell, C. P., Miller, S. P., Purslow, P. P. and Mandell, I. B. 2012. Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle. Can. J. Anim. Sci. 92: 327–341. The effects of nutritional management regimen and breed on growth performance, carcass attributes, and meat quality were evaluated in 68 British (BRIT) and Continental (CONT) crossbred steers, managed on one of three nutritional regimens: (1) ad libitum access to a 77% corn diet (ALGRAIN), (2) limit feeding initially of the 77% corn diet, followed by ad libitum access to the 77% corn diet (LFGRAIN), and (3) limit feeding initially of a 90% haylage diet, followed by ad libitum access to the 77% corn diet (LFHAYL). Nutritional regimen by breed interactions (P<0.02) were present for average daily gain, dry matter intake (DMI), gain to feed, and shear force. LFHAYL regimen decreased gains to a greater extent for BRIT steers than CONT steers managed on ALGRAIN or LFGRAIN. Feed intakes were similar across nutritional regimens for CONT steers, while DMI was depressed in BRIT on LFHAYL as compared with steers started on ALGRAIN or LFGRAIN. Gain to feed was greater in BRIT cattle on LFGRAIN vs. ALGRAIN, while gain to feed was similar in CONT started on grain (ALGRAIN, LFGRAIN). Shear force was lower for beef from LFHAYL BRIT vs. beef from BRIT on ALGRAIN or LFGRAIN, while the converse was true for CONT. Limit feeding of a high-energy diet may be appropriate for cattle of British background to reduce feed input costs, while ensuring tenderness.

scholarly journals Supplement levels and functional oils to replace virginiamycin for young bulls during early dry season on grasslands and finishing phase in feedlot systems

2021 ◽  
Vol 19 (3) ◽  
pp. e0609-e0609
Author(s):  
Diego M. Renesto ◽  
Keyword(s):  
Beef Cattle ◽  
Average Daily Gain ◽  
Sao Paulo ◽  
Dry Season ◽  
São Paulo ◽  
State University ◽  
Forage Crops ◽  
Cashew Nut ◽  
Functional Oils ◽  
Daily Gain

Aim of study: To assess the effects of replacing virginiamycin (VM) by functional oils (FO) from castor beans and cashew nut on beef cattle system during the early dry season (Experiment I) and during the finishing phase were evaluated the historical effect, keeping the treatments and methods intact (Experiment II). Area of study: These experiments were conducted at the Forage Crops and Grasslands section of São Paulo State University, “Julio de Mesquita Filho” (Unesp–Jaboticabal, São Paulo, Brazil). Material and methods: Two supplementation levels combined with two additives (four treatments in total) were evaluated: LSVM, low supplementation (0.3% body weight [BW]) with VM; LSFO, low supplementation (0.3% BW) with FO, HSVM, high supplementation (0.6% BW) with VM, and HSFO, high supplementation (0.6% BW) with FO. In both experiments, the experimental design was completely randomized with a 2 × 2 factorial arrangement (supplementation levels × additives). Main results: In Exp. I, the additive effect of VM provided greater average daily gain (ADG, p=0.02), higher supplementation level resulted in higher ADG (p=0.04) and the greatest crude protein apparent digestibility (p=0.002). However, no effects were observed between supplementation levels, additives, and interactions (p≥0.11) on voluntary intake and ruminal parameters. In Exp. II, LSVM treatment resulted in lower dry matter intake (p=0.04). Animals maintained on LSFO during the early dry season exhibited lower carcass yield (p=0.004). Research highlights: FO can be used to replace VM in beef cattle diet during the finishing phase in the feedlot without altering animal performance.

scholarly journals EFISIENSI PRODUKSI SAPI POTONG PADA PETERNAKAN RAKYAT PADA MUSIM KEMARAU DI DAERAH PERTANIAN LAHAN KERING KABUPATEN GUNUNGKIDUL

2018 ◽  
Vol 32 (1) ◽  
pp. 49 ◽  
Author(s):  
Eka Handayanta ◽  
Lutojo Lutojo ◽  
Kurniasih Nurdiati
Keyword(s):  
Beef Cattle ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Production Efficiency ◽  
Average Daily Gain ◽  
Dry Season ◽  
Efficient Production ◽  
Smallholder Farmer ◽  
Feed Cost ◽  
Daily Gain

<p><em>This research was conducted to know the production efficiency of beef cattle in smallholder farmer in a dry farming area at dry season. Research has been started on June and finished on September (dry season) at smallholder farmer in the village Kemejing, Semin subdistrict, district Gunungkidul, DIY. The research materials are 28 heads of beef cattle from 17 farmers, which consist of 10 heads of PO breed, 10 heads of a Simpo breed, and 8 heads of Limpo breed with 292.25 kg of initial body weight. This research was using Participatory Rural Appraisal method which is a collecting data process that an active teamwork between data collector and farmer. Collected parameter are feed intake, average daily gain (ADG), feed efficiency, feed cost per gain (FC/G), and income over feed cost (IOFC). Data resulting from this research are 8.42 kg/head/day of feed intake, 0.19 kg/head/day of ADG, 0.021 of feed efficiency, Rp 46.166,62 of feed cost per gain, and Rp 3.985,55 of income over feed cost. It can be concluded that the efficient production of beef cattle in smallholder farmer at the dry area is low because average daily gain, feed cost per gain and income over feed cost produced are extremely small so if the calculated economic result is less favorable.</em></p>

scholarly journals ANALISIS TINGKAT KEUNTUNGAN USAHA PENGGEMUKAN SAPI POTONG RAKYAT DI KABUPATEN WONOGIRI

2017 ◽  
Vol 5 (2) ◽  
pp. 33 ◽  
Author(s):  
Deasy Happyana
Keyword(s):  
Beef Cattle ◽  
Drug Costs ◽  
Production Costs ◽  
Labor Costs ◽  
Cattle Breeding ◽  
Feeder Cattle ◽  
Business Profit ◽  
Feed Costs ◽  
The Cost ◽  
Cattle Farms

Beef cattle breeding business in Wonogiri District is dominated by small scale in which capital and profits too low. The size of the profits derived from the balance of the sale value of production and production costs that is issued by the breeder. The maximum profit would be achieved if all factors of production have been allocated in an optimal and efficient use, both technically and economically efficient manner. Objective analysis profit function is to describe the situation now, the circumstances in the future or planning and action of a business related to the rate of business profit and net income scale beef cattle farms of the people.The results showed that total revenue (TR) of beef cattle breeding business people have an average of Rp.89.360.625.00 per farmer per one period of fattening cattle, while the total cost (TC) on average Rp.85.119.873.00 each farmers per one period of fattening cattle. So that the magnitude of the rate of profit(π) obtained by each farmer in one period of fattening cattle for Rp.4.240.752.00 and the R / C ratio of 1:05. The results of the analysis showed that the profit rate of beef cattle breeding business in Wonogiri Regency financially advantageous (value profit π>  0 and the return value cost ratio of R / C> 1). Results of regression equation analysis function simultaneously benefit breeders show concentrate feed costs, labor costs and costs of cows significant ((P <0.05)) on the level of business profit beef cattle farms in Wonogiri. Based on the calculation of the value of R2 adjusted Rvalues obtained2  83.2% showed variable variation concentrate feed and forage costs, drug costs, labor costs, fees and charges cage feeder cattle can be explained by either a variable rate of the business profits of beef cattle breeders. The remaining 16.8% operating income level variable cattle ranchers explained by variations in other variables outside the model. Partially variable concentrate feed costs, labor costs and the cost of feeder cattle significantly (P <0.05) to the level of business profit breeding beef cattle people. As for the cost of forage ariable drug costs are not significant (P> 0.5) on the level of beef cattle breeding business benefit of the people. Keywords: Function Gain, Beef Cattle, Wonogiri

scholarly journals Effects of Feeding Varying Levels of DL-Methionine on Live Performance and Yield of Broiler Chickens

Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2839
Author(s):  
Anthony Pokoo-Aikins ◽  
Jennifer Rumsey Timmons ◽  
Byungrok Rok Min ◽  
William Robert Lee ◽  
Samuel Njoroge Mwangi ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Meat Production ◽  
Live Performance ◽  
Feed Conversion ◽  
Meat Yield ◽  
Common Weight ◽  
Fillet Yield ◽  
Daily Gain

This study was designed to evaluate the effects of dietary supplemental DL-methionine (MET) on live performance and meat yield for broilers raised to a common weight. A total of 1552 one-day old Ross 708, sexed broilers were randomly distributed to 32 pens resulting in eight treatments (TRT) of four replicates with 44 male or 53 female/pen. A randomized complete block with a 2 × 4 (sex × 4 MET levels 0, 0.5, 1, and 2 g/kg) factorial arrangement of TRT was used. A common weight of 2400 g was approached by day 46 (1 and 2 g MET/kg feed) and day 48 (0 and 0.5 g MET/kg feed). Supplementation of MET at 1, and 2 g/kg had a lower (p < 0.01) feed conversion ratio (FCR) at day 46/48 than broilers fed 0.5 g MET/kg. Broilers without supplemental MET had the worst (p < 0.01) feed conversion and average daily gain (ADG) at day 46/48. Birds fed 0 g MET/kg of feed had lower (p < 0.05) whole eviscerated carcass without giblets (WOG), yield than birds fed 2 g MET/kg of feed. Additionally, birds fed 0 g MET/kg of feed had lower (p < 0.05) breast fillet and tender percent yields than birds fed supplemental MET. Elimination of MET from organic broiler diets resulted in reduced ADG, breast fillet yield and feed efficiency of meat yield of broilers raised to day 46/48. Reduction in MET supplementation below current levels reduced the efficiency of meat production of organic broilers raised to day 46/48.

scholarly journals 151 Use of an automated computer vision system to predict body weight and average daily gain in beef cattle in different phases of growth development

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 150-151
Author(s):  
Alexandre Cominotte ◽  
Arthur Francisco Araujo Fernandes ◽  
João R R Dorea ◽  
Guilherme J M Rosa ◽  
Otávio Machado-Neto
Keyword(s):  
Computer Vision ◽  
Body Weight ◽  
Beef Cattle ◽  
Production Systems ◽  
Vision System ◽  
Average Daily Gain ◽  
Computer Vision System ◽  
Growth Development ◽  
Predictive Approaches ◽  
Daily Gain

Abstract Frequent measurements of body weight (BW) in livestock production systems are very important because they allow the assessment of growth development of animals. However, monitoring animal growth through traditional weighing scales is laborious and stressful for animals. Thus, the objectives of this study were to: 1) assess the predictive quality of an automated computer vision system used to predict BW and average daily gain (ADG) in beef cattle; and 2) compare different predictive approaches (Multiple Linear Regression: MLR, Least Absolute Shrinkage and Selection Operator: LASSO, Partial Least Squares: PLS, and Artificial Neutral Networks: ANN). A total of 234 images of Nellore beef cattle were collected during weaning, stocker and feedlot phase. Biometric body measurements from each animal were performed using 3D images captured with the Kinect® sensor, together with their respective BW acquired using an electronic scale. The biometric measurements were used as explanatory variables for each predictive model. Prediction quality was assessed using a leave-one-out cross-validation strategy. The ANN approach resulted on higher precision and accuracy for BW prediction compared to the other methods, with Root Mean Square Error of Prediction (RMSEP) and squared predictive correlation (r2) equal to: RMSEP = 8.6 kg and r2= 0.91 for weaning; RMSEP = 11.4 kg and r2= 0.79 for stocker, and RMSEP = 7.7 kg and r2= 0.92 for beginning of feedlot. The ANN was also superior for prediction of ADG for the weaning to stocker, weaning to beginning of feedlot, weaning to end of feedlot, stocker to beginning of feedlot and beginning to end of feedlot, with RMSEP: 0.02, 0.02, 0.03, 0.10 and 0.09 kg/d, and r2: 0.67, 0.85, 0.80, 0.51 and 0.82, respectively. Overall, results indicate that an automated computer vision system is a potential tool for real-time measurement of BW and ADG in beef cattle.

Stylosanthes cv. Campo Grande silage and concentrate levels in diets for beef cattle

2018 ◽  
Vol 58 (3) ◽  
pp. 539 ◽  
Author(s):  
T. C. da Silva ◽  
O. G. Pereira ◽  
R. M. Martins ◽  
M. C. N. Agarussi ◽  
L. D. da Silva ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Control Diet ◽  
Average Daily Gain ◽  
Latin Square ◽  
Control Treatment ◽  
Ruminal Fermentation ◽  
Ruminal Ph ◽  
Tropical Conditions ◽  
Daily Gain ◽  
Potential Use

The objective of this study was to evaluate the ruminal and intestinal digestion, the ruminal fermentation and the performance of beef cattle fed diets containing Stylosanthes silage (StS) and corn silage (CS). The treatments consisted of diets containing StS with different concentrate levels, based on dry matter (DM) (g/kg): 200 (StS-200), 400 (StS-400), 60 (StS-600), and a Control treatment with 600 g/kg CS and 400 g/kg concentrate (CS-400). In Experiment 1, 32 Nellore bulls, 364.28 ± 2.82 kg bodyweight, were distributed in a complete randomised design with eight replicates. Four Holstein × Zebu bulls (average bodyweight of 429 ± 15 kg) were used in Experiment 2, distributed in a 4 × 4 Latin square design. Nutrient intake was similar between StS-400 and CS-400 (P > 0.05), however, only StS-600 showed the same intake of total digestible nutrients as CS-400 (P < 0.05). Only the animals fed the StS-600 diet had similar (P > 0.05) average daily gain of carcass in comparison with those fed the Control diet. The StS-200 and StS-400 diets showed lower (P < 0.05) total tract digestibility of DM and crude protein than CS-400 (P < 0.05). Ruminal pH values of StS-200 and SE-400 were higher (P < 0.05) than in CS-400. The StS-600 diet showed a similar productive performance to CS in diets with 600 g/kg of concentrate, highlighting the potential use of this legume in diets for beef cattle in tropical conditions.

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