Dynamics of forage mass, air temperature and animal performance in a silvopastoral system of Uruguay

2018 ◽  
Vol 93 (6) ◽  
pp. 2197-2204
Author(s):  
Jean K. Fedrigo ◽  
R. Santa Cruz ◽  
V. Benítez ◽  
V. Courdin ◽  
G. Ferreira ◽  
...  
Keyword(s):  
Air Temperature ◽  
Animal Performance ◽  
Silvopastoral System

scholarly journals Correction to: Dynamics of forage mass, air temperature and animal performance in a silvopastoral system of Uruguay

2019 ◽  
Vol 94 (2) ◽  
pp. 663-663
Author(s):  
Jean K. Fedrigo ◽  
R. Santa Cruz ◽  
V. Benítez ◽  
V. Courdin ◽  
G. Ferreira ◽  
...  
Keyword(s):  
Air Temperature ◽  
Animal Performance ◽  
Silvopastoral System

scholarly journals Thermoregulatory and Behaviour Responses of Dairy Heifers Raised on a Silvopastoral System in a Subtropical Climate

2020 ◽  
Vol 20 (2) ◽  
pp. 613-627 ◽  
Author(s):  
Frederico Márcio C. Vieira ◽  
Matheus Deniz ◽  
Edgar S. Vismara ◽  
Piotr Herbut ◽  
Jaqueline A. Pilatti ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Air Temperature ◽  
Water Intake ◽  
Time Of Day ◽  
Subtropical Climate ◽  
Silvopastoral System ◽  
Hair Coat ◽  
Dairy Heifers ◽  
Temperature Humidity Index ◽  
Humidity Index

AbstractIn this study, we investigated the influence of a silvopastoral system on the thermal environment, behaviour and thermoregulation of dairy heifers in a subtropical climate. The experiment was conducted on a dairy farm in Southwest Paraná, Brazil, during the summer of 2014. Crossbred Holstein × Jersey dairy heifers (n = 10) were used in a split-plot design. The fixed effects in this study include time of day (9:00–10:00, 13:00–14:00, and 17:00–18:00 h) under silvopastoral or open pastures conditions, which were the main-plot and split-plot factors, respectively. To assess the environmental conditions in both systems, air temperature, relative humidity and wind speed were recorded. In addition, the temperature-humidity index was calculated based on the microcli-mate measurements. Respiratory rate and hair coat surface temperature of heifers were measured in both groups during time of day (30 days). Diurnal behaviour using focal observations with 0/1 sampling was observed. Data were analysed using Bayesian inference with a mixed effects model. The air temperature was higher (P<0.05) in open pasture conditions than the silvopasture system. Temperature-humidity index values for the silvopasture system were lower than open pasture during the hottest hours of the day. Regarding thermoregulation responses, there was an interaction between time of day and pasture environment (P<0.05). Heifers showed lower respiratory rates and hair coat surface temperature values (P<0.05) when access to shade was provided, mainly during the hottest periods in the afternoon. In addition, there was also an interaction between rumination and water intake (P<0.05), which indicates a higher rumination frequency for animals in the silvopasture system during the hottest period, as well as a higher water intake frequency for heifers in open pasture during midday. These findings imply that the arrangement of trees in a silvopasture system provides better thermal comfort conditions for dairy heifers raised in a subtropical climate.

scholarly journals Pasture characteristics and animal performance in a silvopastoral system with Brachiaria decumbens, Gliricidia sepium and Mimosa caesalpiniifolia

2014 ◽  
Vol 2 (1) ◽  
pp. 85 ◽  
Author(s):  
Alexandre C.L. De Mello ◽  
Suellen B.M. Costa ◽  
José C.B. Dubeux Jr ◽  
Mércia V.F. Dos Santos ◽  
Valéria X.O. Apolinário ◽  
...  
Keyword(s):  
Gliricidia Sepium ◽  
Animal Performance ◽  
Silvopastoral System ◽  
Brachiaria Decumbens

Forage intake, milk yield and composition of cows in a silvopastoral system with and without access to the forage tree and energy supplementation during the rainy season

2007 ◽  
Vol 2007 ◽  
pp. 199-199
Author(s):  
V. Valdivia ◽  
C.A. Sandoval-Castro ◽  
K. Otaduy ◽  
J.C. Ku-Vera
Keyword(s):  
Milk Yield ◽  
Rainy Season ◽  
Silvopastoral Systems ◽  
Animal Performance ◽  
Silvopastoral System ◽  
Dual Purpose ◽  
Lactating Cows ◽  
Forage Intake ◽  
Energy Supplementation ◽  
Grass Growth

The improvement in animal performance obtained in silvopastoral systems has been explained either by their ingestion of a higher quality grass (Hernandez et al., 2001, Iglesias, 1998) resulting from the inclusion of a legume in the system which provide N for grass growth or due to the intake of the legume itself, which in turn is also of higher quality than grass. During the rainy season, animals might be able to increase selectivity and intake due to the higher availability of biomass hence possibly reducing the advantage of including a legume in the system. The objective of the present work was to discriminate in a silvopastoral system the effect of improved grass quality and legume intake on dual purpose lactating cows milk yield and composition.

scholarly journals Effect of the Silvopastoral System on the Thermal Comfort of Lambs in a Subtropical Climate: A Preliminary Study

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 790
Author(s):  
Frederico Márcio C. Vieira ◽  
Jaqueline Agnes Pilatti ◽  
Zilmara Maria Welfer Czekoski ◽  
Vinicius F. C. Fonsêca ◽  
Piotr Herbut ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Air Temperature ◽  
Heat Load ◽  
Thermal Environment ◽  
Ground Surface ◽  
Radiant Heat ◽  
Silvopastoral System ◽  
Hair Coat ◽  
Ground Surface Temperature ◽  
Preliminary Study

The silvopastoral system has the potential to alleviate the negative impacts of heat stress on livestock. Through a preliminary study, we assessed the thermal environment experienced by hair coat lambs, as well as the impacts on their bio-thermal and behavioural responses, when either kept in either the silvopastoral system, or exposed to full sun. Twelve hair coat lambs (Dorper × Santa Ines) were randomly assigned to a silvopastoral system or full sun exposure during the summer (from January to February 2017). Parameters, including air temperature, black globe temperature, relative humidity, wind speed, and ground surface temperature, were measured daily for both thermal environments. From 14:00 to 16:00, lambs kept in silvopastoral areas experienced lower levels of air temperature, radiant heat load, and ground surface temperature. Consequently, they had a lower hair coat surface and lower body rectal temperatures. Lambs exposed to a shaded environment spent more time grazing and walking, and less time standing at rest. In conclusion, lambs kept in a silvopastoral system experienced lower levels of radiant heat load and ground surface temperature. In addition, the animals showed a reduced requirement for evaporative cooling and expressed behaviours that indicated a comfortable thermal environment.

Effects of hazardous environments on animal performance

1992 ◽  
Author(s):  
G. Carroll Brown ◽  
Dennis W. Blick ◽  
Michael R. Murphy
Keyword(s):  
Animal Performance ◽  
Hazardous Environments

THE USE OF PASTURE HEIGHT AS A PREDICTOR OF FEED LEVEL IN NORTH ISLAND HILL COUNTRY

1986 ◽  
pp. 249-253 ◽  
Author(s):  
R.W. Webby ◽  
W.J. Pengelly
Keyword(s):  
Late Spring ◽  
Animal Performance ◽  
Considerable Effort ◽  
Management Decisions ◽  
Hill Country ◽  
Visual Impact

Considerable effort is expended measuring pasture parameters that relate to animal perform mance. Traditionally farmers have used visual impact and experience as their method of pasture assessment to make management decisions. The simplest measurement collected by researchers, pasture height, is developed to the point where it can be used as a guide to predict pasture mass and animal performance. This paper presents relationships between height and mass for improved pastures in summer dry North Island hill country. A pasture 5cm tall will give hogget growth of 60 gjday in summer, 90 in autumn, 100 in winter and 200 in spring. Similarly 5cm will be 2250 kg DM/ha in summer, 1900 in autumn, 1520 in winter, 1640 in spring and 2200 in late spring. Keywords: Height, mass, predictor, grazing, quality, animal performance, feed levels, parameters, pasture.

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