scholarly journals Forage characteristics and beef cattle production in perennial pastures of BRS Paiaguás and BRS Piatã in integrated crop livestock system

2021 ◽  
Vol 42 (5) ◽  
pp. 2979-2992
Author(s):  
Bianca Midori Souza Sekiya ◽  
◽  
Gelci Carlos Lupatini ◽  
Cristiana Andrighetto ◽  
Franciely de Oliveira Neves ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Animal Feed ◽  
Block Design ◽  
Average Daily Gain ◽  
Neutral Detergent Fiber ◽  
Animal Performance ◽  
Cattle Production ◽  
Beef Cattle Production ◽  
Urochloa Brizantha ◽  
Livestock System

The integrated crop-livestock system is highlighted in Brazilian agriculture, in which the synergism between the components can increase productivity and animal performance. Forage is one of the most important components because it is the basis of animal feed. Thus, the objective of the study was to evaluate the beef cattle production and pastures characteristics of Urochloa brizantha ‘BRS Piatã’ and ‘BRS Paiaguás’, under continuous grazing in an integrated crop livestock system. The experiment was conducted in west of Sao Paulo State, in a randomized complete block design with two treatments and three replicates, from October 2018 to June 2019. The treatments were 3-year-old pastures of BRS Piatã and Paiaguás, in an integrated crop livestock system with perennial pasture and soybean. Nellore steers (14 ± 2 months old and 244 ± 13 kg initial weight) were used. The grazing method adopted was a continuous stocking with a variable rate to maintain a pasture height of 30 cm. Herbage mass was 5716 and 5480 kg dry matter ha-1 for Piatã and Paiaguás, respectively. The crude protein, neutral detergent fiber, and acid detergent fiber were similar between the two cultivars. The leaf blade mass of BRS Piatã was greater than that of BRS Paiaguás in summer. Animal performance was similar between treatments, with average daily gain of 0.901 and 0.822 kg day-1 and weight gain per area of 888 and 865 kg ha-1 in Piatã and Paiaguás, respectively. The BRS Piatã and BRS Paiaguás grasses are indicated for use in perennial pastures in integrated crop livestock systems.

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.

scholarly journals Beef cattle production in established integrated systems

2017 ◽  
Vol 38 (5) ◽  
pp. 3241 ◽  
Author(s):  
Érick Lemes Gamarra ◽  
Maria Da Graça Morais ◽  
Roberto Giolo de Almeida ◽  
Natália Aguiar Paludetto ◽  
Mariana Pereira ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Average Daily Gain ◽  
Live Weight ◽  
Forage Yield ◽  
Integrated Systems ◽  
Cattle Production ◽  
Forage Production ◽  
Yield Difference ◽  
Beef Cattle Production ◽  
Daily Gain

The aim of the current study is to assess three integrated systems presenting different eucalyptus tree densities due to animal and forage production. The following integrated systems were assessed: crop-livestock-forest with 357 eucalyptus trees ha-1 (ICLF1); crop-livestock-forest with 227 eucalyptus trees ha-1 (ICLF2); and crop-livestock with 5 remnant native trees ha-1 (ICL). The randomized block experimental design was applied in a split-plot scheme with four replicates. The Average Daily Gain (ADG, g animal-1day-1) and the live-weight gain per area (LWG, kg ha-1) were applied to analyze animal performance, which was set by weighing the animals every 28 days (the animals previously fasted for 16h). Forage yield was higher in ICL during fall and winter; in summer, it did not differ from ICLF2. There was no forage yield difference between the ICL and ICLF2 systems in any of the assessed seasons; summer was more productive in ILPF1 than other seasons. The highest leaf crude protein contents (CP) in summer was recorded in systems ICLF1 and ICLF2, and the highest value recorded in fall was found in ILPF1; the lowest was found in ILP. On the other hand, the highest leaf NDF contents in summer were found in ILP. The highest ADG were found in summer. The highest LWG values recorded for the ICL and ICLF2 systems were collected in summer and fall; there was no difference in any of the three systems in winter. The LWG was higher in all system in summer. The ICLF2 emerged as the system (with trees) most appropriate for beef cattle production. Despite the shading interference on forage production, such condition is compensated by the best nutritional contents such as CP. The ICLF2 system allowing an annual LWG of 83% in relation to the ICL system during the fifth year of establishment of the systems.

Supplementation of finishing Nellore steers during dry season using byproducts

2003 ◽  
Vol 2003 ◽  
pp. 119-119
Author(s):  
A. A. Souza ◽  
C. Boin ◽  
A. J. Lourenço ◽  
M. Q. Manella ◽  
L. Suguisawa
Keyword(s):  
Beef Cattle ◽  
Carcass Characteristics ◽  
Dry Season ◽  
Protein Supplementation ◽  
Tropical Pasture ◽  
Animal Performance ◽  
Cattle Production ◽  
Nellore Cattle ◽  
Dry Seasons ◽  
Beef Cattle Production

Beef cattle production based in tropical pasture has a period of low daily weight gains during dry seasons, because the lowest quality and quantity pastures in this period. This study evaluated the effects of protein supplementation in animal performance and carcass characteristics of Nellore cattle on tropical pasture.

scholarly journals Beef cattle production on Piatã grass pastures in silvopastoral systems

2021 ◽  
Vol 9 (1) ◽  
pp. 1-12
Author(s):  
Mariana Pereira ◽  
Maria Da Graça Morais ◽  
Patrick Bezerra Fernandes ◽  
Valéria Ana Corvalã Dos Santos ◽  
Sarah Glatzle ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Nutritive Value ◽  
Accumulation Rate ◽  
Animal Production ◽  
Silvopastoral Systems ◽  
Cattle Production ◽  
Diverse Environment ◽  
Beef Cattle Production ◽  
Urochloa Brizantha ◽  
The One

Tropical beef cattle production involving animals grazing in a shaded and biologically diverse environment, surrounded by high-quality edible biomass, is achievable through silvopastoral systems (SPSs). However, it is necessary to assess the effects of the presence of trees on forage and animal performance over time. In the Brazilian Cerrado, we evaluated the effects of 2 densities of eucalyptus trees in 2 SPSs (8 years of age - SPS22: 227 trees/ha; SPS14: 357 trees/ha) on forage morphology, production and nutritive value of Urochloa brizantha cv. BRS Piatã grass plus performance of Nellore heifers, compared with a grass-only pasture, over a year from 2015 to 2016. On the one hand, SPSs improved (P<0.001) forage nutritive value as reflected in higher crude protein and digestibility and lower neutral and acid detergent fiber concentrations compared with a grass-only pasture. On the other hand, the grass-only pasture had higher (P<0.001) herbage mass and accumulation rate than the SPSs. Forage growth and animal production decreased with higher tree density. Increasing competition from trees with age could be a serious issue limiting pasture and animal production and should be monitored. The suitability of eucalyptus trees for planting in SPSs may be questionable after the 8th year of establishment and further studies are warranted.

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

PSVI-14 Blend of Additives in Nursery Pig Diets as an Antibiotics Substitute Increases the Growth Performance and Intestinal Health

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 201-201
Author(s):  
Sudario Roberto Silva Junior ◽  
Rhuan F Chaves ◽  
Maíra Resende ◽  
Ygor Henrique De Paula ◽  
Kenio De Gouvêa Cabral ◽  
...  
Keyword(s):  
Growth Performance ◽  
Animal Feed ◽  
Block Design ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Intestinal Health ◽  
Total Period ◽  
Nursery Pigs ◽  
Randomized Block Design ◽  
Diarrhea Incidence

Abstract Antibiotics growth promoting (AGP) in animal feed has been restricted. With this, several additives have been tested in order to replace AGP and ensure intestinal health. The objective of this study was to evaluate the effects of a blend of additives on growth performance, diarrhea incidence and cecal content microbiota of nursery pigs. A total of 576 weaned pigs (6.21 ± 1.16 kg) were assigned into 4 treatments (12 replicates) in randomized block design: basal diet without additives (NC); basal diet with 120 ppm of halquinol (PC); NC + 0,05% blend of lactic acid (3,5%), benzoic acid (2,5%), flavonoids (3,5%) (B5); NC+ 0,1% of same blend (B10). The pigs were weighed 0 and 42 days into the experiment. On day 10, one animal per pen (10 replicates) was euthanized for microbiota analyses. The diarrhea incidence was calculated by the percentage of visual pens with diarrhea, by day, in the period. The growth performance was analyzed by GLIMMIX procedure and the means were compared with Tukey test (P &lt; 0.050) (SAS, 2009). Diarrhea incidence was analyzed by GENMOD procedure (SAS, 2009). The Kruskal Wallis test was used to compare microbial biodiversity (P &lt; 0.050) by statistical program STAMP. The final weight (P = 0.010) and average daily gain (P = 0.001) of B10 and PC were higher than NC. Regarding diarrhea, it was observed that the B5 and B10 had lower incidence when compared to other groups in the total period. In the microbiome analyses, it was observed that the B5, B10, and PC groups had lower (P = 0.021) biodiversity when compared to the NC piglets. However, the B5 and B10 group had higher biodiversity when compared to the PC group. In conclusion, the supplementation with 0,1% blend of additives can be a substitute for AGP.

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
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