The physiological consequences of ingesting a toxic plant ( Diplotaxis tenuifolia ) influence subsequent foraging decisions by sheep ( Ovis aries )

Catanese, Francisco Hernan; Fernández, Paula Rosana; Villalba, Juan J.; Distel, Roberto Alejandro

doi:10.1016/j.physbeh.2016.09.009

Cited by 7 publications

(7 citation statements)

References 69 publications

(90 reference statements)

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“…Similarly, cattle challenged to eat sagebrush supplemented with energy and protein—to enhance detoxification processes and better enable animals to eat sagebrush [ 64 ]—ate more sagebrush later in life and showed better performance than naïve cattle [ 65 ]. Another example on how nutrient–toxin interactions can attenuate the negative post-ingestive effects of toxic plants and enhance preference for chemically-defended plants comes from a recent study with wild rocket and sheep [ 23 ]. Wild rocket ( Diplotaxis tenuifolia ) is a nutritive plant, but it contains glucosinolates that cause intake depression in ruminants [ 66 ].…”

Section: Positive Experience and Use Of Toxin-containing Feedmentioning

confidence: 99%

“…The total concentration of serum proteins and albumins were greater in sheep fed with protein supplements, which probably elicited a protective effect on biologically active by-products (isothiocyanates, thiocyanates, and nitriles, among others) derived from glucosinolate hydrolysis. Thereafter, when foraging behaviour was evaluated in an experimental arena where sheep could select from randomly distributed feeders containing either wild rocket or barley, the experienced sheep spent more time and ingested more wild rocket than the inexperienced sheep [ 23 ].…”

Section: Positive Experience and Use Of Toxin-containing Feedmentioning

confidence: 99%

“…The negative experience modifies the feeding behaviour of goats such that they prefer to eat older growth twigs of blackbrush, which although lower in nutrients are also lower in the condensed tannins that caused malaise [ 104 , 105 ]. In addition, sheep that experienced the toxic effects of glucosinolates in wild rocket ingested less than half the amount of the wild rocket consumed by the control animals when grazing in an experimental arena where they could select between the toxic feed and barley grain [ 23 ]. It was concluded that a negative feeding experience with wild rocket is needed for animals to display the typical pattern of aversion commonly observed in grazing situations.…”

Section: Negative Consequences Of Being Exposed To An Unpalatable mentioning

confidence: 99%

“…On the other hand, the context in which animals experience unpalatable forages can result in learned associations that enhance consumption of and preference for them [ 20 , 21 , 22 ]. For instance, sheep can develop a preference for either low-quality [ 6 , 7 ] or toxin-containing [ 23 ] food when this food precedes a highly nutritious and preferred food in a sequence familiar to the animal.…”

Section: Introductionmentioning

confidence: 99%

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Use of Unpalatable Forages by Ruminants: The Influence of Experience with the Biophysical and Social Environment

Distel

Villalba

2018

Animals

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Simple SummaryUnpalatable forages, due to either low nutrient content or the presence of toxic compounds, are widespread and represent a challenge for ruminant nutrition, health, and welfare. If we find ways to encourage consumption of unpalatable forages, they could provide at least part of the nutrient requirements of ruminants. Our objective was to synthesize the role of diverse environmental experiences on the use of unpalatable forages by ruminants. Experimental evidence shows that experience can alter both morpho-physiological and psychological (learning) mechanisms to better cope with unpalatable forages, particularly early in life when body functions are more amenable to change. Furthermore, experiential learning provides flexibility in diet selection, which is critical in changing foraging environments. By understanding and applying behavioural principles, it is possible to better devise management plans that optimize the nutrition, health, and welfare of herbivores grazing unpalatable forages throughout their life. In addition, a more uniform use of resources can be achieved from the landscape level down to the individual plant, with consequent benefits to ecosystem integrity and stability.AbstractUnpalatable forage resources (low nutrient density, potentially toxic metabolites) are widespread and represent a challenge for ruminant nutrition, health, and welfare. Our objective was to synthesize the role of biophysical and social experience on the use of unpalatable forages by ruminants, and highlight derived behavioural solutions for the well-being of soils, plants, and animals. Environmental experiences early in life modulate gene expression and promote learning, which alters morpho-physiological and psychological mechanisms that modify behavioural responses and change food and habitat selection. In this process, ruminants can become better adapted to the habitat where they are reared. Moreover, experiential learning provides flexibility in diet selection, which is critical for changing foraging environments. Learned associations between unpalatable and palatable foods, if ingested in appropriate amounts, sequence, and close temporal association, induce the development of preference for the former type of food. In this way, a more uniform use of resources can be achieved from the landscape level down to the individual plant, with the associated benefits to ecosystem integrity and stability. Ruminants can also learn the medicinal benefits of ingesting foods with toxins (e.g., condensed tannins and saponins with antiparasitic properties). This knowledge on behavioural processes can be translated into behavioural applications that provide low-cost solutions to many challenges that producers face in managing sustainable livestock production systems.

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Section: Positive Experience and Use Of Toxin-containing Feedmentioning

confidence: 99%

Section: Positive Experience and Use Of Toxin-containing Feedmentioning

confidence: 99%

Section: Negative Consequences Of Being Exposed To An Unpalatable mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of Unpalatable Forages by Ruminants: The Influence of Experience with the Biophysical and Social Environment

Distel

Villalba

2018

Animals

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“…También esta selección de la dieta en ovinos está fuertemente determinada por interacciones sociales, hasta el punto de que esta relación puede mejorar la aversión hacia ciertos forrajes que en el pasado hayan causado un efecto desagradable al ser consumidos (34) . Los animales que consumieron mayor cantidad H. rosa-sinensis disminuyeron la cantidad de bocados sobre C. nlemfuensis (rs=-0.763636, P= 0.05) (Figura 3), aun cuando C. nlemfuensis presenta una disponibilidad de biomasa mayor en ese sistema (32) , y se debe a que el follaje de H. rosasinensis contiene una menor cantidad de compuestos antinutricionales (35,36,37) , los cuales son causa de conductas de rechazo (38) .…”

Section: Selección De Forrajeunclassified

Importance of sheep social hierarchy on feeding behavior and parasite load in silvopastoral and grass monoculture grazing systems

Flota-Bañuelos

Rivera-Lorca²,

Candelaria-Martinez³

2019

Rev. Mex. Cienc. Pecu.

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Para determinar la relación entre el nivel jerárquico, preferencias por forraje y parasitismo de ovinos en dos sistemas de pastoreo (sistema silvopastoril: SSP y monocultivo de pasto estrella: PE). Se utilizaron 11 ovinos de la raza pelibuey mantenidos en pastoreo diurno, a los cuales se les aplicó pruebas de jerarquía social para obtener el índice de dominancia, pruebas de selectividad de especies vegetales forrajeras (C. nlemfuensis, L. leucocephala, G. sepium, G. ulmifolia y H. rosa-sinensis), análisis parasitario en heces (huevecillos por gramo de heces: hpg) y determinación de hematocrito (ht). Se observó una jerarquía no lineal con dominancia lineal y bidireccional para los grupos de h=0.75 en el SSP y h=0.5 en PE. Los ovinos más dominantes presentaron mayor cantidad de conductas agresivas (F1, 21=0.65256, P=0.000154) y menor carga parasitaria (rs=-0.909091, p=0.05) en el SSP y PE (rs=-0.727273, p=0.05). Los ovinos del SSP tuvieron preferencia por C. nlemfuensis, pero los animales que consumieron más follaje de L. leucocephala presentaron mayor nivel de hematocrito (rs=0.694269, P= 0.05). Concluimos que los ovinos con mayor índice de dominancia que pastorearon en el sistema silvopastoril y en potreros con pasto estrella, tuvieron menores cargas parasitarias y que el pastoreo en sistemas silvopastoriles ofrece a los ovinos el consumo de follaje de especies arbóreas y arbustivas, que promueve la capacidad de resistir cargas parasitarias elevadas y mantener niveles estables de hematocrito independientemente de su nivel jerárquico dentro del grupo.

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Toxic or harmful components of aromatic plants in animal nutrition

Cappai

Aboling

2020

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The physiological consequences of ingesting a toxic plant ( Diplotaxis tenuifolia ) influence subsequent foraging decisions by sheep ( Ovis aries )

Cited by 7 publications

References 69 publications

Use of Unpalatable Forages by Ruminants: The Influence of Experience with the Biophysical and Social Environment

Use of Unpalatable Forages by Ruminants: The Influence of Experience with the Biophysical and Social Environment

Importance of sheep social hierarchy on feeding behavior and parasite load in silvopastoral and grass monoculture grazing systems

Toxic or harmful components of aromatic plants in animal nutrition

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