Animal thermal comfort indexes in silvopastoral systems with different tree arrangements

Pezzopane, José Ricardo Macedo; Nicodemo, M. L. F.; Bosi, Cristiam; Garcia, Alexandre Rossetto; Lulu, Jorge

doi:10.1016/j.jtherbio.2018.12.015

Cited by 69 publications

(42 citation statements)

References 26 publications

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“…It is possible that under situations of intense heat stress in silvopastoral conditions, the sensation of heat stress is not being perceived by the buffaloes, due to the contribution of trees in providing shade and improving active feeding behavior ( 50 , 51 ). In the same way, shade in the silvopastoral system improved pasture quality and quantity in several studies ( 5 , 10 , 52 ).…”

Section: Discussionmentioning

confidence: 99%

Effect of Silvopastoral Systems in the Thermoregulatory and Feeding Behaviors of Water Buffaloes Under Different Conditions of Heat Stress

et al. 2020

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Buffaloes use wallowing behavior to release excess heat in tropical conditions. The aim of this study was to evaluate the impact of silvopastoral systems in the feeding and thermoregulatory behavior of water buffaloes under moderate and intense heat stress. The behavior of water buffaloes was evaluated in two different production systems. The conventional system with Guinea grass ( Megathyrsus maximus ) only, and the silvopastoral system with Guinea grass and Leucaena leucocephala trees. The relation between the frequency of animal activities and the length of time the animals engaged in each activity was measured during the day time (6:00–18:00 h) by visual observations at 10-min intervals. The results obtained suggest that buffaloes use tree shade to partially supplement wallowing. Feeding behavior increased under intense heat stress in the silvopastoral system indicating that it can be a promising alternative to improve the buffaloes rearing conditions in the tropics.

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Section: Discussionmentioning

confidence: 99%

Effect of Silvopastoral Systems in the Thermoregulatory and Feeding Behaviors of Water Buffaloes Under Different Conditions of Heat Stress

et al. 2020

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“…Then, for each system, black globe humidity index-BGHI 27 and heat load index-HLI 22 were calculated. Currently, many studies have been considering the black globe humidity index as the most accurate indicator of animal comfort than the classical temperature and humidity index-THI 29 , 52 , 53 , especially in SP systems 54 . For that, meteorological data were used from 11:00 a.m. to 3:00 p.m., which comprises the period of the day with the greatest thermal challenge 55 .…”

Section: Methodsmentioning

confidence: 99%

Silvopastoral system is an alternative to improve animal welfare and productive performance in meat production systems

Lemes

Garcia

Pezzopane

et al. 2021

Sci Rep

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Climate change is a reality and global surface temperature is projected to rise substantially in the next 80 years. Agriculture practices will have to adapt to climate change, and also help to mitigate this effect using, among other strategies, forest conservation and management. Silvopastoral systems have been adopted in tropical climate livestock areas but their benefits on thermal comfort and reproductive performance of beef cows are not completely known. Therefore, our aims were to compare the microclimate of silvopastoral and intensive rotational unshaded grazing systems in different months and to evaluate physiological variables (Exp. 1 and 2), metabolism, and in vitro embryo production (Exp. 2) in crossbred beef females. Our hypothesis is that the silvopastoral system can improve the thermal comfort of beef heifers and cows and, consequently, also improve dry matter intake, body weight gain, and in vitro embryo production when compared to the unshaded rotational grazing system. In Exp 1, the silvopastoral system decreased body temperature and increased welfare and performance of heifers. In Exp. 2, the silvopastoral system enhanced the body weight but did not affect metabolism and the general reproductive performance, but increased the recovery rate of oocytes in primiparous cows.

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“…While integrated systems may increase land‐use efficiency and, under favourable soil and climatic conditions (e.g., central Brazil), maintain productivity throughout the year, the proper arrangement of system components is fundamental for capitalizing on existing synergies and increasing animal productivity (Pedreira, Silva, Guimarães, Pequeno, & Tonato, ). In the Amazon biome, the radiant heat load varied ~ 250 W/m 2 from 7 a.m. to 3 p.m., while in the shaded areas, the amplitude was 73 W/m 2 (Domiciano et al, ), supporting greater animal thermal comfort due to the reduction in the exposure to thermal stress and radiant thermal load (Pezzopane, Nicodemo, Bosi, Garcia, & Lulu, ). However, there are several arrangement possibilities (species of trees and planting density), which promsote contrasting understorey microclimate (Karvatte et al, ) and may affect pasture and livestock production.…”

Section: Introductionmentioning

confidence: 98%

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

Carvalho

Domiciano

Mombach

et al. 2019

Grass and Forage Science

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To meet the global demand for animal protein, sustainable intensification of existing livestock systems may be possible, especially through integration of livestock with crops or forestry. Thus, our objective was to compare forage production and animal performance in grass monoculture and integrated systems in the Brazilian Amazon biome. The four systems were (a) livestock (L) with Marandu palisadegrass {Brachiaria brizantha (Hochst. ex A. Rich.) R. D. Webster} as monoculture, (b) palisadegrass pastures integrated with eucalyptus trees (Eucalyptus urograndis; hybrid of Eucalyptus grandis W. Hill ex Maiden and Eucalyptus urophylla S. T. Blake) arranged in three‐row groves with groves spaced 30 m apart (livestock–forestry; LF), (c) palisadegrass after two years of crops (crop–livestock; CL) and (d) palisadegrass after two years of crops with single rows of eucalyptus trees spaced 37 m apart (crop–livestock–forestry; CLF). From July 2016 to July 2017, all experimental units were continuously stocked using a variable stocking rate. Greater herbage accumulation (HA) occurred in CL and CLF in comparison with L and LF (21,310, 24,050, 19,500 and 18,890 kg DM/ha respectively). The gain per hectare of L, LF and CL (average of 932 kg ha–1) was less than CLF (1,190 kg ha–1). Average daily gain was similar among systems (0.69 kg/day). We conclude that integrated systems can support similar (LF or CL) or greater (CLF) levels of animal production than palisadegrass monocultures while increasing diversity of outputs, thereby providing a greater range of viable systems for livestock production in the Brazilian Amazon biome.

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Animal thermal comfort indexes in silvopastoral systems with different tree arrangements

Cited by 69 publications

References 26 publications

Effect of Silvopastoral Systems in the Thermoregulatory and Feeding Behaviors of Water Buffaloes Under Different Conditions of Heat Stress

Effect of Silvopastoral Systems in the Thermoregulatory and Feeding Behaviors of Water Buffaloes Under Different Conditions of Heat Stress

Silvopastoral system is an alternative to improve animal welfare and productive performance in meat production systems

Forage and animal production on palisadegrass pastures growing in monoculture or as a component of integrated crop–livestock–forestry systems

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