Forage management and concentrate supplementation effects on performance of beef calves

2018 ◽  
Vol 58 (8) ◽  
pp. 1399 ◽  
Author(s):  
Joao M. B. Vendramini ◽  
Philipe Moriel
Keyword(s):  
Beef Cattle ◽  
Management Practice ◽  
Cattle Production ◽  
Creep Feeding ◽  
Beef Calves ◽  
Concentrate Supplementation ◽  
Early Stages ◽  
Metabolic Imprinting ◽  
Beef Cattle Production ◽  
And Performance

Proper grazing management is the most effective practice to provide adequate forage quantity and quality to cow–calf systems, and optimise beef-calf performance in tropical and subtropical regions. Supplementation of beef calves is not a commonly used management practice in beef-cattle production, primarily because calves can benefit from the cow’s milk production to offset some limitations in forage quantity and quality. Creep-feeding and supplementation of early weaned calves are the two main strategies to supplement beef calves. Creep-feeding can be used to overcome limited herbage allowance, improve calves uniformity, supply extra nutrients for calves, provide adaptation to concentrate diets before weaning, and increase weaning weight. Early weaning is an effective management practice to increase the likelihood of re-breeding of first-calf beef heifers in the south-eastern USA; however, it was observed that concentrate supplementation is necessary for early weaned calves to achieve desirable levels of gain on pasture in tropical and subtropical regions. In addition, concentrate supplementation during early stages of a calf life may permanently change calf development and performance in a process called ‘metabolic imprinting’. The metabolic imprinting concept in production agriculture is in the early stages of knowledge and further research should elucidate the benefits of this management practice in beef-cattle production.

scholarly journals Evaluation of Different Feeding Systems in Beef Cattle Production

1969 ◽  
Vol 56 (4) ◽  
pp. 327-336
Author(s):  
Ismael Carlo ◽  
Radaí Mendoza ◽  
Jaime Vélez
Keyword(s):  
Beef Cattle ◽  
Cattle Production ◽  
Concentrate Supplementation ◽  
Significant Difference ◽  
Weight Gains ◽  
Beef Cattle Production ◽  
Ad Libitum ◽  
Dressing Percentage ◽  
Better Than ◽  
Feeding Systems

Different feeding systems for beef cattle production were studied at the Corozal and Isabela Substations of the Agricultural Experiment Station, University of Puerto Rico. The data for each location were analyzed separately. Observations at Isabela indicate that Pangola-grass soilage is not suitable for rearing beef cattle. Ad libitum feeding of a bulky ration showed no comparative advantage over grazing alone in weight gains of the heifers. Similarly, a finishing period on ad libitum bulky feed was no better than grazing alone. The dressing percentage for the ad libitum bulky-fed group was 64.26 percent compared to 62.30 percent for the group on grazing alone and to 62.23 percent for the group on grazing plus a finishing period on ad libitum bulky feed. There was no significant difference between these two latter groups. The soilage group was not slaughtered. Data from the Corozal Substation indicate that corn supplementation was superior to the other treatments in regard to weight gains of the heifers. However, when economical aspects are considered, corn supplementation may prove unjustifiable. The molasses supplementation was no better than grazing alone. The dressing percentage of the corn supplemented heifers was significantly different from grazing alone (60.70 vs. 59.03 percent) and from grazing plus concentrate supplementation when pastures were poor (60.70 vs. 59.10 percent). Dressing data for the molasses-fed group (60.40 percent) were not statistically analyzed because individual liveweights of heifers were not obtained for reference against the corresponding "hot carcass" weights.

Environmental impacts of Brazilian beef cattle production in the Amazon, Cerrado, Pampa, and Pantanal biomes

2021 ◽  
pp. 127750
Author(s):  
Milene Dick ◽  
Marcelo Abreu da Silva ◽  
Rickiel Rodrigues Franklin da Silva ◽  
Otoniel Geter Lauz Ferreira ◽  
Manoel de Souza Maia ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Environmental Impacts ◽  
Cattle Production ◽  
Beef Cattle Production

Identification of breeding objectives using a bioeconomic model for a beef cattle production system in Uruguay

2014 ◽  
Vol 160 ◽  
pp. 21-28 ◽  
Author(s):  
Maria Isabel Pravia ◽  
Olga Ravagnolo ◽  
Jorge Ignacio Urioste ◽  
Dorian J. Garrick
Keyword(s):  
Beef Cattle ◽  
Production System ◽  
Bioeconomic Model ◽  
Cattle Production ◽  
Breeding Objectives ◽  
Beef Cattle Production

Bioeconomic simulation of Rhipicephalus microplus infestation in different beef cattle production systems in the Brazilian Cerrado

2021 ◽  
Vol 194 ◽  
pp. 103247
Author(s):  
Maria Paula Cavuto Abrão Calvano ◽  
Ricardo Carneiro Brumatti ◽  
Jacqueline Cavalcante Barros ◽  
Marcos Valério Garcia ◽  
Kauê Rodriguez Martins ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Production Systems ◽  
Rhipicephalus Microplus ◽  
Brazilian Cerrado ◽  
Cattle Production ◽  
Beef Cattle Production

1 Effect of Conditioning, Rest, and Post-rest Transport Duration on Welfare Indicators of Beef Cattle Transported by Road

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 2-3
Author(s):  
Daniela M Melendez ◽  
Sonia Marti ◽  
Timothy D Schwinghamer ◽  
Derek B Haley ◽  
Karen S Schwartzkopf-Genswein
Keyword(s):  
Beef Cattle ◽  
Factorial Design ◽  
Random Effects ◽  
Fixed Effects ◽  
Rest Period ◽  
Flight Speed ◽  
Beef Calves ◽  
Welfare Indicators ◽  
Preliminary Results ◽  
And Performance

Abstract The aim of this study was to assess the effects of conditioning, rest, and post-rest transport duration on welfare indicators of 6–7 mo old beef calves. Three hundred and twenty-eight weaned calves (237 ± 29.7 kg BW) were randomly assigned to a 2 × 2 × 2 nested factorial design: conditioning, conditioned (C) or non-conditioned (N); rest, 0 (R0) or 8 (R8) h, and post-rest transport, 4 (T4) or 15 (T15) h. Calves were sampled prior to the first loading (L1), after 20h of transport, prior to and after the additional 4 or 15-h transport, and at 1, 2, 3, 5, 14, and 28 d after transport ended. Data were analyzed using the GLIMMIX procedure of SAS. Fixed effects included conditioning, transport and time nested within rest period, while random effects included animal and pen. Greater shrink (P < 0.01) was observed in C than N calves after the initial 20-h transport. The N calves had greater (P < 0.01) ADG than C calves between L1 and d 5, while C had greater (P < 0.01) ADG than N calves between 14 and 28 d. L-lactate concentrations and flight speed were greater (P ≤ 0.05) in C than N calves between L1 and d 5. The R8-T4 calves had greater (P < 0.01) ADG than R8-T15 calves between L1 and d 5. The R0-T4 calves had greater (P = 0.02) L-lactate concentrations than R0-T15 and R8-T4 calves on d 1. The R0 calves had greater (P < 0.01) ADG than R8 calves between 14 and 28 d. Preliminary results show physiological, behavioral, and performance differences across treatments, however, additional indicators are required to accurately assess the effect of conditioning, rest, and post-rest transport durations on calf welfare.

183 Designing Research for Beef Cattle Production in Extensive Environments

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 98-99
Author(s):  
Timothy DelCurto ◽  
Sam Wyffels
Keyword(s):  
Beef Cattle ◽  
Statistical Inference ◽  
Multiple Regression ◽  
Feed Intake ◽  
Cattle Production ◽  
Modeling Tools ◽  
Activity Monitors ◽  
Multiple Observations ◽  
Wide Range ◽  
Beef Cattle Production

Abstract Designing research for beef cattle production in rangeland environments is an ongoing challenge for researchers worldwide. Specifically, creating study designs that mirror actual production environments yet have enough observations for statistical inference is a challenge that often hinders researchers in efforts to publish their observations. Numerous journals will accept “case study” or observational results that lack valid statistical inference. However, these journals are limited in number and often lack impact. Approaches are available to gain statistical inference by creating multiple observations within a common group of animals. Approaches to increasing statistical observations will be discussed in this presentation. Modeling animal behavior and performance on extensive rangeland landscapes is commonly practiced in wildlife ecology and, more recently, has been published in Animal Science journals. Additionally, new technology has made it possible to apply treatments (e.g., supplementation studies) to individual animals on extensive environments where large, diverse herds/flocks of cattle/sheep are managed as a single group. Use of individual animal identification (EID) and feed intake technology has opened a wide range of research possibilities for beef cattle production systems research in rangeland environments. Likewise, global positioning system (GPS) collars and activity monitors have created the opportunity to evaluate animal grazing behavior in remote and extensive landscapes. The use of multiple regression models to evaluate resource use in extensive environments will, in turn, help managers optimize beef cattle production and the sustainable use of forage/rangeland resources. Embracing new technologies such as GPS, activity monitors, EID tags, and feed intake monitors combined with multiple regression modeling tools will aid in designing and publishing beef cattle production research in extensive rangeland environments.

PSVIII-19 Greenhouse gas emissions from beef cattle production in Brazil: how we can mitigate from animal operations?

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 430-430
Author(s):  
Andre Pastori D Aurea ◽  
Abmael S da Silva Cardoso ◽  
Lauriston Bertelli Fernandes ◽  
Ricardo Andrade Reis ◽  
Luis Eduardo Ferreira ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Beef Cattle ◽  
Agricultural Sector ◽  
Average Daily Gain ◽  
Ghg Emissions ◽  
Primary Data ◽  
Cattle Production ◽  
Production Chain ◽  
Beef Cattle Production ◽  
Carbon Dioxide Equivalent

Abstract In Brazil beef cattle production is one of the most important activities in the agricultural sector and has an important impact on environmental and resources consumption. In this study assessed greenhouses gases (GHG) impacts from on farms representative productive system and the possible improvements of the production chain. Primary data from animal production index and feeding were collected from 17 farms, which covers 300.000 animals and 220.000 hectares. Emissions of methane, nitrous oxide and carbon dioxide were made using intergovernmental panel on climate change (IPCC) guidelines for national inventories. The GHG inventory included emissions from animals, feeds and operations for animal operation from “cradle to farm gate”. Emissions of each farm were converted to carbon dioxide equivalent (CO2eq) and divided by carcass production. Regression analysis between carbon dioxide equivalent and productive index was run to identify possible hotspot of GHG emissions. A large variation between farms were observed. The GHG yield ranged from 8.63 kg to 50.88 CO2eq kg carcass-1. The productive index age of slaughtering (P < 0.0001), average daily gain (P < 0.0001) and productivity (P = 0.058) per area were positive correlated to GHG yield. While no correlation was found with stocking rate (P = 0.21). Improvements of the production chain could be realized by accurate animal management strategies that reduce the age of slaughtering (feeding and genetic improvements) and gain individual or per area using strategic animal supplementation and pasture management, in order to obtains reduction of GHG emissions of beef cattle.

The effect of Hsp90 gene polymorphism on the beef cattle production: a review paper

2021 ◽  
Vol 4 (1) ◽  
pp. e2021020
Author(s):  
Hassan Nima HABIB ◽  
Wessam Monther Mohammed SALEH ◽  
Qutaiba J. GHENI ◽  
Alfred S. KAROMY
Keyword(s):  
Gene Polymorphism ◽  
Beef Cattle ◽  
Review Paper ◽  
Cattle Production ◽  
Beef Cattle Production

scholarly journals Comparison of economic returns among genetic evaluation strategies in a 2-tiered Charolais-sired beef cattle production system1,2

2018 ◽  
Vol 96 (10) ◽  
pp. 4076-4086
Author(s):  
Justin W Buchanan ◽  
Michael D MacNeil ◽  
Randall C Raymond ◽  
Ashley R Nilles ◽  
Alison Louise Van Eenennaam
Keyword(s):  
Beef Cattle ◽  
Genetic Evaluation ◽  
Cattle Production ◽  
Economic Returns ◽  
Evaluation Strategies ◽  
Beef Cattle Production
Sign in / Sign up

Export Citation Format

Share Document