Effects of shading on tropical grass characteristics and cattle performance in silvopastoral systems: systematic review and meta-analysis
Alan Figueiredo de Oliveira
A * , Guilherme Lobato Menezes A , Lúcio Carlos Gonçalves A , Vânia Eloisa de Araújo B , Matheus Anchieta Ramirez A , Roberto Guimarães Júnior C , Diogo Gonzaga Jayme A and Ângela Maria Quintão Lana A
A Animal Science Department, Federal University of Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil.
B Dentistry Department, Pontifical Catholic University of Minas Gerais, 30535-901, Belo Horizonte, MG, Brazil.
C Brazilian Agricultural Research Corporation – Embrapa Cerrados, 73310-970, Planaltina, DF, Brazil.
Animal Production Science 63(13) 1324-1339 https://doi.org/10.1071/AN22313
Submitted: 12 August 2022 Accepted: 12 June 2023 Published: 30 June 2023
Abstract
Shading reduces forage mass and can reduce animal production and profitability per area in silvopastoral systems (SPSs) with tropical grasses. This reduction in profitability is the main obstacle to using such systems.
This study evaluated the effects of shading by different tree arrangements on tropical grass characteristics and cattle performance in SPSs.
Systematic searches were conducted in databases and directly in scientific journals, and 66 articles were selected. Data were grouped into SPS subgroups on the basis of tree type: with Eucalyptus with 1–14 m between rows; with Eucalyptus with 15–28 m between rows; with Eucalyptus with more than 28 m between rows; with leguminous trees; with palm trees; and with other types of tree. Data were analysed with random-effects model by using mean difference with 95% confidence interval (at P = 0.05).
A large reduction in forage mass significantly reduced animal weight gain per area and stocking rate of beef cattle reared in SPSs with row spacing of up to 28 m, compared with pasture monoculture. There was a small reduction in forage mass in SPSs with Eucalyptus with more than 28 m between rows, compared with pasture monoculture, but no reduction in stocking rate. This result allowed an increase in weight gain per area and indicated the need to use more than 28 m between Eucalyptus rows in systems the main objective of which is animal production. There was also a small reduction in forage mass in leguminous tree SPSs, but weight gain per area was similar to that in pasture monoculture; the animals also had a higher dry-matter intake, crude protein intake and milk production in these SPSs. The tropical grasses in palm tree SPSs had a higher crude protein and a lower forage mass than did those in pasture monoculture, and no reduction in weight gain per area compared with those in pasture monoculture, which indicated the possibility of productive animal production together with palm trees. The SPSs with other types of tree had a higher weight gain per area than did pasture monoculture. This result indicated that the use of SPSs with native trees can integrate animal production with environmental preservation.
The SPSs with Eucalyptus with more than 28 m between the rows or with other types of tree had a higher weight gain per area than did pasture monoculture, whereas leguminous and palm tree SPSs had a weight gain per area similar to that of pasture monoculture, which indicated that there was no significant negative effect of shading on livestock production.
Silvopastoral systems with higher weight gain per leaf area than, or similar to that of pasture monoculture can increase the total system production and profitability (considering wood and animal productions), which is beneficial and may be a factor in motivating producers to adopt these SPSs on commercial farms.
Keywords: agroforestry, Eucalyptus, integrated systems, Leucaena leococephala, Megathyrsus, photosynthetically active radiation, trees, Urochloa.
References
Almeida LLS, Frazão LA, Lessa TAM, Fernandes LA, Veloso ÁLC, Lana AMQ, Souza IA, Pegoraro RF, Ferreira EA (2021) Soil carbon and nitrogen stocks and the quality of soil organic matter under silvopastoral systems in the Brazilian Cerrado. Soil and Tillage Research 205, 104785.
| Crossref | Google Scholar |
Alonso Lazo J, Febles G, Ruiz TE, Achang G (2006) Effect of the shade on the grass associated with a silvopastoral system of leucaena–Guinea grass in different stages. Cuban Journal of Agricultural Science 40, 485-493.
| Google Scholar |
Araújo RAD, Rodrigues RC, Costa CDS, Santos FNS, Lima AJT, Rodrigues MM (2020) Dynamics and stability of Marandu grass tillers in monocrop systems and babassu palm silvopastoral systems. Acta Scientiarum: Agronomy 42, e42445.
| Crossref | Google Scholar |
Baah-Acheamfour M, Chang SX, Carlyle CN, Bork EW (2015) Carbon pool size and stability are affected by trees and grassland cover types within agroforestry systems of western Canada. Agriculture, Ecosystems & Environment 213, 105-113.
| Crossref | Google Scholar |
Balbino LC, Cordeiro LAM, Porfírio-da-Silva V, Moraes AD, Martínez GB, Alvarenga RC, Kichel AN, Fontaneli RS, Santos HP, Franchini JC, Galerani PR (2011) Evolução tecnológica e arranjos produtivos de sistemas de integração lavoura–pecuária–floresta no Brasil. Pesquisa Agropecuária Brasileira 46, 1-12.
| Crossref | Google Scholar |
Ballaré CL (1999) Keeping up with the neighbours: phytochrome sensing and other signalling mechanisms. Trends in Plant Science 4, 97-102.
| Crossref | Google Scholar |
Benvenutti MA, Gordon IJ, Poppi DP, Crowther R, Spinks W, Moreno FC (2009) The horizontal barrier effect of stems on the foraging behaviour of cattle grazing five tropical grasses. Livestock Science 126, 229-238.
| Crossref | Google Scholar |
Bottini-Luzardo MB, Aguilar-Pérez CF, Centurión-Castro FG, Solorio-Sánchez FJ, Ku-Vera JC (2016) Milk yield and blood urea nitrogen in crossbred cows grazing Leucaena leucocephala in a silvopastoral system in the Mexican tropics. Tropical Grasslands-Forrajes Tropicales 4, 159-167.
| Crossref | Google Scholar |
Carvalho P, Domiciano LF, Mombach MA, Nascimento HLB, Cabral LDS, Sollenberger LE, Pereira DH, Pedreira BC (2019) Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems. Grass and Forage Science 74, 650-660.
| Crossref | Google Scholar |
Cochrane Collaboration (2020) Review Manager (RevMan) [Computer program]. Version 5.4. edition: 1.22. Available at http://www.revman.cochrane.org
Crestani S, Mascheroni JDC, Geremia EV, Carnevalli RA, Mourão GB, Da Silva SC (2017) Sward structural characteristics and herbage accumulation of Piatã palisade grass (Brachiaria brizantha) in a crop–livestock–forest integration area. Crop & Pasture Science 68, 859-871.
| Crossref | Google Scholar |
Deinum B, Sulastri RD, Zeinab MHJ, Maassen A (1996) Effects of light intensity on growth, anatomy and forage quality of two tropical grasses (Brachiaria brizantha and Panicum maximum var. trichoglume). Netherlands Journal of Agricultural Science 44, 111-124.
| Crossref | Google Scholar |
Domiciano LF, Mombach MA, Carvalho P, Da Silva NMF, Pereira DH, Cabral LS, Lopes LB, Pedreira BC (2016) Performance and behaviour of Nellore steers on integrated systems. Animal Production Science 58, 920-929.
| Crossref | Google Scholar |
Domiciano LF, Pedreira BC, da Silva NMF, Mombach MA, Chizzotti FHM, Batista ED, Carvalho P, Cabral LS, Pereira DH, Nascimento HLB (2020) Agroforestry systems: an alternative to intensify forage-based livestock in the Brazilian Amazon. Agroforestry Systems 94, 1839-1849.
| Crossref | Google Scholar |
du Sert NP, Ahluwalia A, Alam S, Avey MT, Baker M, Browne WJ, Clark A, Cuthill IC, Dirnagl U, Emerson M, Garner P, Holgate ST, Howells W, Hurst V, Karp NA, Lazic SE, Lidster K, MacCallum CJ, Macleod M, Pearl EJ, Petersen OH, Rawle F, Reynolds P, Rooney K, Sena ES, Silberberg SD, Steckler T, Würbel H (2020) Reporting animal research: explanation and elaboration for the ARRIVE guidelines 2.0. PLoS Biology 18, e3000411.
| Crossref | Google Scholar |
Epifanio PS, Costa KAP, Severiano EC, Souza WF, Teixeira DAA, Silva JT, Aquino MM (2019) Productive and nutritional characteristics of Urochloa brizantha cultivars intercropped with Stylosanthes cv. Campo Grande in different forage systems. Crop & Pasture Science 70, 718-729.
| Crossref | Google Scholar |
Figueiredo EB, Jayasundara S, Bordonal RO, Reis RA, Wagner-Riddle C, La Scala N (2017) Greenhouse gas balance and carbon footprint of beef cattle in three contrasting pasture-management systems in Brazil. Journal of Cleaner Production 142, 420-431.
| Crossref | Google Scholar |
Frota MNL, Carneiro MSS, Pereira ES, Berndt A, Frighetto RTS, Sakamoto LS, Moreira Filho MA, Cutrim Júnior JAL, Carvalho GMC (2017) Enteric methane in grazing beef cattle under full sun, and in a silvopastoral system in the Amazon. Pesquisa Agropecuária Brasileira 52, 1099-1108.
| Crossref | Google Scholar |
Geremia EV, Crestani S, Mascheroni JDC, Carnevalli RA, Mourão GB, Silva SC (2018) Sward structure and herbage intake of Brachiaria brizantha cv. Piatã in a crop–livestock–forestry integration area. Livestock Science 212, 83-92.
| Crossref | Google Scholar |
Gil J, Siebold M, Berger T (2015) Adoption and development of integrated crop–livestock–forestry systems in Mato Grosso, Brazil. Agriculture, Ecosystems & Environment 199, 394-406.
| Crossref | Google Scholar |
Giro A, Pezzopane JRM, Junior WB, Pedroso AF, Lemes AP, Botta D, Romanello N, Barreto AN, Garcia AR (2019) Behavior and body surface temperature of beef cattle in integrated crop–livestock systems with or without tree shading. Science of The Total Environment 684, 587-596.
| Crossref | Google Scholar |
Gómez S, Guenni O, Bravo de Guenni L (2012) Growth, leaf photosynthesis and canopy light use efficiency under differing irradiance and soil N supplies in the forage grass Brachiaria decumbens Stapf. Grass and Forage Science 68, 395-407.
| Crossref | Google Scholar |
Guenni O, Seiter S, Figueroa R (2008) Growth responses of three Brachiaria species to light intensity and nitrogen supply. Tropical Grasslands 42, 75-87.
| Google Scholar |
Guenni O, Romero E, Guédez Y, Bravo de Guenni L, Pittermann J (2018) Influence of low light intensity on growth and biomass allocation, leaf photosynthesis and canopy radiation interception and use in two forage species of Centrosema (DC.) Benth. Grass and Forage Science 73, 967-978.
| Crossref | Google Scholar |
Hernández-Rodríguez R (2019) Effect of the silvopastoral system on milk production and composition in Siboney-Cuba cows. Livestock Research for Rural Development 31, 190-195.
| Google Scholar |
Kephart KD, Buxton DR (1993) Forage quality responses of C3 and C4 perennial grasses to shade. Crop Science 33, 831-837.
| Crossref | Google Scholar |
Lemaire G, Franzluebbers A, Carvalho PCF, Dedieu B (2014) Integrated crop–livestock systems: strategies to achieve synergy between agricultural production and environmental quality. Agriculture, Ecosystems & Environment 190, 4-8.
| Crossref | Google Scholar |
Lima MA, Paciullo DSC, Morenz MJF, Gomide CAM, Rodrigues RAR, Chizzotti FHM (2018) Productivity and nutritive value of Brachiaria decumbens and performance of dairy heifers in a long-term silvopastoral system. Grass and Forage Science 74, 160-170.
| Crossref | Google Scholar |
Machado VD, Fonseca DM, Lima MA, Martuscello JA, Paciullo DSC, Chizzotti FHM (2020) Grazing management strategies for Urochloa decumbens (Stapf) R. Webster in a silvopastoral system under rotational stocking. Grass and Forage Science 75, 266-278.
| Crossref | Google Scholar |
Magalhães CAS, Pedreira BC, Tonini H, Neto ALF (2018) Crop, livestock and forestry performance assessment under different production systems in the north of Mato Grosso, Brazil. Agroforestry Systems 93, 2085-2096.
| Crossref | Google Scholar |
Mezzalira JC, Carvalho PCDF, Fonseca L, Bremm C, Cangiano C, Gonda HL, Laca EA (2014) Behavioural mechanisms of intake rate by heifers grazing swards of contrasting structures. Applied Animal Behaviour Science 153, 1-9.
| Crossref | Google Scholar |
Moreira EDS, Oliveira AF, Santos CAS, Gonçalves LC, Viana MCM, Marriel IE, Gontijo Neto MM, Alvarenga RC, Lana AMQ (2022) Soil carbon stock and biological activity in silvopastoral systems planted with Eucalyptus grandis in a tropical climate. Soil Research 60, 705-718.
| Crossref | Google Scholar |
Murgueitio E, Calle Z, Uribe F, Calle A, Solorio B (2011) Native trees and shrubs for the productive rehabilitation of tropical cattle ranching lands. Forest Ecology and Management 261, 1654-1663.
| Crossref | Google Scholar |
Nascimento HLB, Pedreira BC, Sollenberger LE, Pereira DH, Magalhães CAS, Chizzotti FHM (2019) Physiological characteristics and forage accumulation of grazed Marandu palisade grass (Brachiaria brizantha) growing in monoculture and in silvopasture with Eucalyptus urograndis. Crop & Pasture Science 70, 384-394.
| Crossref | Google Scholar |
Oliveira CC, Villela SDJ, Almeida RG, Alves FV, Behling-Neto A, Martins PGMA (2014) Performance of Nellore heifers, forage mass, and structural and nutritional characteristics of Brachiaria brizantha grass in integrated production systems. Tropical Animal Health and Production 46, 167-172.
| Crossref | Google Scholar |
Oliveira CC, Alves FV, Almeida RG, Gamarra ÉL, Villela SDJ, Martins PGMA (2019) Thermal comfort indices assessed in integrated production systems in the Brazilian savannah. Agroforestry Systems 92, 1659-1672.
| Crossref | Google Scholar |
Paciullo DSC, Carvalho CAB, Aroeira LJM, Morenz MJF, Lopes FCF, Rossiello ROP (2007) Morfofisiologia e valor nutritivo do capim-braquiária sob sombreamento natural e a sol pleno. Pesquisa Agropecuária Brasileira 42, 573-579.
| Crossref | Google Scholar |
Paciullo DSC, Lopes FCF, Malaquias Junior JD, Viana Filho A, Rodriguez NM, Morenz MJF, Aroeira LJM (2009) Características do pasto e desempenho de novilhas em sistema silvipastoril e pastagem de braquiária em monocultivo. Pesquisa Agropecuária Brasileira 44, 1528-1535.
| Crossref | Google Scholar |
Paciullo DSC, Fernandes PB, Gomide CAM, Castro CRT, Sobrinho FS, Carvalho CAB (2011) The growth dynamics in Brachiaria species according to nitrogen dose and shade. Revista Brasileira de Zootecnia 40, 270-276.
| Crossref | Google Scholar |
Paciullo DSC, Pires MFA, Aroeira LJM, Morenz MJF, Maurício RM, Gomide CAM, Silveira SR (2014) Sward characteristics and performance of dairy cows in organic grass–legume pastures shaded by tropical trees. Animal 8, 1264-1271.
| Crossref | Google Scholar |
Paciullo DSC, Gomide CDM, Castro CRT, Maurício RM, Fernandes PB, Morenz MJF (2016) Morphogenesis, biomass and nutritive value of Panicum maximum under different shade levels and fertilizer nitrogen rates. Grass and Forage Science 72, 590-600.
| Crossref | Google Scholar |
Paciullo DSC, Fernandes PB, Carvalho CAB, Morenz MJF, Lima MA, Mauricio RM, Gomide CA (2021) Pasture and animal production in silvopastoral and open pasture systems managed with crossbred dairy heifers. Livestock Science 245, 104426.
| Crossref | Google Scholar |
Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, Shamseer L, Tetzlaff JM, Akl EA, Brennan SE, Chou R, Glanville J, Grimshaw JM, Hr’objartsson A, Lalu MM, Li T, Loder EW, Wilson EM, McDonald S, McGuinness LA, Stewart LA, Thomas J, Tricco AC, Welch VA, Whiting P, Moher D (2021) The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ 372, n71.
| Crossref | Google Scholar |
Pandey CB, Verma SK, Dagar JC, Srivastava RC (2011) Forage production and nitrogen nutrition in three grasses under coconut tree shades in the humid-tropics. Agroforestry Systems 83, 1-12.
| Crossref | Google Scholar |
Pereira M, Morais MG, Fernandes PB, Santos VAC, Glatzle S, Almeida RG (2021) Beef cattle production on Piatã grass pastures in silvopastoral systems. Tropical Grasslands 9, 1-12.
| Crossref | Google Scholar |
Santiago-Hernández F, López-Ortiz S, Ávila-Reséndiz C, Jarillo-Rodríguez J, Pérez-Hernández P, Guerrero-Rodríguez JD (2016) Physiological and production responses of four grasses from the genera Urochloa and Megathyrsus to shade from Melia azedarach L. Agroforestry Systems 90, 339-349.
| Crossref | Google Scholar |
Santos DC, Júnior RG, Vilela L, Pulrolnik K, Bufon VB, França AFS (2016) Forage dry mass accumulation and structural characteristics of Piatã grass in silvopastoral systems in the Brazilian savannah. Agriculture, Ecosystems & Environment 233, 16-24.
| Crossref | Google Scholar |
Santos DC, Júnior RG, Vilela L, Maciel GA, Franca AFS (2018) Implementation of silvopastoral systems in Brazil with Eucalyptus urograndis and Brachiaria brizantha: productivity of forage and an exploratory test of the animal response. Agriculture, Ecosystems & Environment 266, 174-180.
| Crossref | Google Scholar |
Sousa LF, Maurício RM, Moreira GR, Gonçalves LC, Borges I, Pereira LGR (2010) Nutritional evaluation of ‘Braquiarão’ grass in association with ‘Aroeira’ trees in a silvopastoral system. Agroforestry Systems 79, 189-199.
| Crossref | Google Scholar |
Stape JL, Binkley D, Ryan MG, Fonseca S, Loos RS, Takahashi EN, Silva CR, Silva SR, Hakamada RE, Ferreira JMA, Lima AMN, Gava JL, Leite FP, Andrade HB, Alves JM, Silva GGC, Azevedo MR (2010) The Brazil Eucalyptus Potential Productivity Project: influence of water, nutrients and stand uniformity on wood production. Forest Ecology and Management 259, 1684-1694.
| Crossref | Google Scholar |
Thomas J, Kneale D, McKenzie JE, Brennan SE, Bhaumik S (2019) Determining the scope of the review and the questions it will address. In ‘Cochrane handbook for systematic reviews of interventions’. (Eds JPT Higgins, J Thomas, J Chandler, M Cumpston, T Li, MJ Page, VA Welch) pp. 13–31. (Wiley: Chichester, UK)
Vizzotto EF, Fischer V, Neto AT, Abreu AS, Stumpf MT, Werncke D, Schmidt FA, McManus CM (2015) Access to shade changes behavioral and physiological attributes of dairy cows during the hot season in the subtropics. Animal 9, 1559-1566.
| Crossref | Google Scholar |
Wilson JR (1996) Shade-stimulated growth and nitrogen uptake by pasture grasses in a subtropical environment. Australian Journal of Agricultural Research 47, 1075-1093.
| Crossref | Google Scholar |
