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A study was carried out to test: (1) if the prediction of in vitro gas production of kikuyu grass (Pennisetum clandestinum) samples by near-infrared reflectance spectroscopy (NIRS) could be improved by the use of a spectrally-structured sample population; and (2) if the parameters from exponentia...


Herrero, Mario T.Jessop, N.S.Fawcett, R.H.Murray, I.Dent, J.B.[Prediction of the in vitro gas production dynamics of kikuyu grass by near-infrared reflectance spectroscopy using spectrally-structured sample populations]Prediction of the in vitro gas production dynamics of kikuyu grass by near-infrared reflectance spectroscopy using spectrally-structured sample populations

Livestock provide substantial contribution to the wellbeing of many rural dwellers. However, the level of livestock use and the degree of reliance on benefits derived from livestock differs across households. The factors that condition households reliance on a particular economic activity in gene...


Karanja Ng'ang'a, StanleySteeg, Jeannette van deNotenbaert, An Maria OmerMoyo, SibonisoHerrero, Mario T.[Household livelihood strategies and livestock benefits dependence in Gaza province of Mozambique]Household livelihood strategies and livestock benefits dependence in Gaza province of Mozambique

African smallholder farming systems are complex, dynamic systems with many interacting biophysical subcomponents. In these systems the major inputs and outputs are managed by human agency – the farmers. To analyse potential developmental pathways of smallholder farming systems in sub-Saharan Afri...


Wijk, Mark T. vanTittonell, Pablo A.Rufino, Mariana C.Herrero, Mario T.Pacini, C.Ridder, N.A. deGiller, Ken E.[Identifying key entry-points for strategic management of smallholder farming systems in sub-Saharan Africa using the dynamic farm-scale simulation model NUANCES-FARMSIM]Identifying key entry-points for strategic management of smallholder farming systems in sub-Saharan Africa using the dynamic farm-scale simulation model NUANCES-FARMSIM

Nine mathematical models were compared for their ability to predict daily milk yields (n = 294,986) in standard 305-d and extended lactations of dairy cows of Costa Rica. Lactations were classified by parity (first and later), lactation length (9 to 10, 11 to 12, 13 to 14, 15 to 16, and 16 to 17 ...


Vargas, B.Koops, W.Herrero, Mario T.Arendonk, Johan A.M. van[Modelling extended lactation curves of dairy cows of Costa Rica]Modelling extended lactation curves of dairy cows of Costa Rica

Evaluation of lifetime productivity is sensible to target interventions for improving productivity of smallholder dairy systems in the highlands of East Africa, because cows are normally not disposed of based on productive reasons. Feeding strategies and involuntary culling may have long-term eff...


Rufino, Mariana C.Herrero, Mario T.Wijk, Mark T. vanHemerink, L.Ridder, N.A. deGiller, Ken E.[Lifetime productivity of dairy cows in smallholder farming systems of the Central highlands of Kenya]Lifetime productivity of dairy cows in smallholder farming systems of the Central highlands of Kenya

Recent studies have projected significant climate change impacts in Africa. In order to understand what this means in terms of human well-being at local level, we need to understand how households can cope and adapt. This need has led many authors to argue for approaches to adaptation that are ba...


Notenbaert, An Maria OmerKaranja, S.N.Herrero, Mario T.Felisberto, M.Moyo, Siboniso[Derivation of a household-level vulnerability index for empirically testing measures of adaptive capacity and vulnerability]Derivation of a household-level vulnerability index for empirically testing measures of adaptive capacity and vulnerability

Current approaches to estimate freshwater use in livestock production systems generally fail to consider the competition for water resources with alternative uses, such as production of food crops food or other ecosystem services. This article presents a new method to account for the competition ...


Ran, YlvaMiddelaar, C.E.M VanLannerstad, MatsHerrero, Mario T.Boer, Imke J.M. de[Freshwater use in livestock production—To be used for food crops or livestock feed?]Freshwater use in livestock production—To be used for food crops or livestock feed?

In this study we estimate yield gaps for mixed crop–livestock smallholder farmers in seven Sub-Saharan African sites covering six countries (Kenya, Tanzania, Uganda, Ethiopia, Senegal and Burkina Faso). We also assess their potential to increase food production and reduce the GHG emission intensi...


Henderson, Benjamin B.Godde, Cécile M.Medina-Hidalgo, D.Wijk, Mark T. vanSilvestri, SilviaDouxchamps, SabineStephenson, E.Power, B.Rigolot, CyrilleCacho, O.Herrero, Mario T.[Closing system-wide yield gaps to increase food production and mitigate GHGs among mixed crop–livestock smallholders in sub-Saharan Africa]Closing system-wide yield gaps to increase food production and mitigate GHGs among mixed crop–livestock smallholders in sub-Saharan Africa

A dynamic performance model was integrated with a model that optimised culling and insemination policies in dairy herds using dynamic programming. The performance model estimated daily feed intake, milk yield and body weight change of dairy cows on the basis of availability and quality of feed an...


Vargas, B.Herrero, Mario T.Arendonk, Johan A.M. van[Interactions between optimal replacement policies and feeding strategies in dairy herds]Interactions between optimal replacement policies and feeding strategies in dairy herds

Decision-making approaches, the factors affecting them, the role of the decision-making units and the actors involved in farming decisions were studied in 91 Costa Rican farmers using a classification procedure. Farmers were asked to classify 18 farming decisions (systematically selected from a p...


Solano, C.León, H.Pérez, E.Herrero, Mario T.[Who makes farming decisions? A study of Costa Rican farmers]Who makes farming decisions? A study of Costa Rican farmers

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