Browsing by Author "Chagunda MGG"
Now showing items 1-20 of 54
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Are by-product feed systems appropriate for high producing dairy cows?
March MD; Chagunda MGG; Flockhart JF; Roberts DJ (Wageningen Academic Publishers, 08/2015)Feeding non human edible by-products to dairy cows to produce palatable protein could be construed as a sustainable feeding strategy as farmers can utilise surplus foodstuffs, however the appropriateness of this feeding ... -
Assessing and managing intensification in smallholder dairy systems for food and nutrition security in Sub-Saharan Africa
Chagunda MGG; Mwangwela A; Mumba C; dos Anjos F; Kawonga BS; Hopkins R; Chiwona-Kartun L (2015)Smallholder farmers play an important part in the dairy value chain in Sub-Saharan Africa. Three technological approaches have been used to improve productivity. These are through, applying agricultural ecological processes ... -
Association between body energy content in the dry period and post calving production disease status in dairy cattle
Smith GL; Friggens NC; Ashworth CJ; Chagunda MGG (2017)The transition from gestation to lactation is marked by significant physiological changes for the individual cow such that disease incidence is highest in early lactation. Around the time of calving, cows rely on mobilisation ... -
Biological efficiency profiles over the lactation period in multiparous high-producing dairy cows under divergent production systems
Ross SA; Chagunda MGG; Topp CFE; Ennos R (2015)The study examined variation in energetic-efficiency profiles among production systems and cow parities. Further, the correlation between cows’ body condition score (BCS) and energetic efficiency over the lactation period ... -
Characterisation of smallholder dairy production systems using animal welfare and milk quality
Kawonga BS; Chagunda MGG; Gondwe TN; Gondwe SR; Banda JW (2012)The aimof the current study was to characterise and evaluate production system of smallholder dairy farmers using an index based on combined score of animal welfare and milk quality. Farms were grouped into three ... -
Claw length recommendations for dairy cow foot trimming
Archer SC; Newsome R; Dibble H; Sturrock CJ; Chagunda MGG; Mason CS; Huxley JN (2015)The aim was to describe variation in length of the dorsal hoof wall in contact with the dermis for cows on a single farm, and hence, derive minimum appropriate claw lengths for routine foot trimming. The hind feet of 68 ... -
A comparison of milk yields and methane production from three contrasting high-yield dairy cattle feeding regimes: cut-and-carry, partial grazing and total mixed ration
Cameron L; Chagunda MGG; Roberts DJ; Lee MA (Wiley, 2018)There have been reductions in grazing cattle and corresponding increases in mixed diets across many regions. Mixed diets consist of silage, grains, legumes and other herbaceous plants (termed total mixed ration, TMR). ... -
The contribution of previous lameness events and body condition score to the occurrence of lameness in dairy herds: a study of two herds
Randall LV; Green MJ; Green LE; Chagunda MGG; Mason C; Archer SC; Huxley JN (2017)It has been demonstrated that low body condition and previous occurrence of lameness increase the risk of future lameness in dairy cows. To date the population attributable fraction (PAF), which provides an estimate of the ... -
Covariance among milking frequency, milk yield, and milk composition from automatically milked cows
Lovendahl P; Chagunda MGG (2011)Automatic milking systems allow cows voluntary access to milking and concentrates within set limits. This leads to large variation in milking intervals, both within and between cows, which further affects yield per milking ... -
Current trends in British dairy management regimens
March MD; Haskell MJ; Chagunda MGG; Langford FM; Roberts DJ (2014)This paper presents a summary of results from a 2012 survey that investigated feeding and housing management regimens currently adopted by dairy farmers in Britain. Responses from 863 farms provide a snapshot of dairy ... -
Determinants of sustainable innovation performance by smallholders dairy farmers in Malawi
Chindime S; Kibwika P; Chagunda MGG (2017)The smallholder dairy farmer’s performance and ability to improve productivity for increased incomes, is driven by their level of innovativeness. Knowledge on the nature, degree and frequency of innovations provide ... -
Do methane measurements from a laser detector and an indirect open-circuit respiration calorimetric chamber agree sufficiently closely?
Chagunda MGG; Yan T (2011)In ruminant production, there is a need for inexpensive, convenient and practical methods for quantifying the amount of enteric methane produced by cows. The current study tested the level of agreement between a recently ... -
Effect of cattle genotype and feeding regime on greenhouse gas emissions intensity in high producing dairy cows
Ross SA; Chagunda MGG; Topp CFE; Ennos R (2014)Improving milk production through livestock feeding and genetics is a promising approach for reducing greenhouse gas emissions (GHG) from dairy production systems. This study investigated emissions intensity, defined as ... -
The effect of forage quality on predicted enteric methane production from dairy cows
Chagunda MGG; Flockhart JF; Roberts DJ (2010) -
Effect of genotype and feeding regime on enteric methane, non-milk nitrogen and performance of dairy cows during the winter feeding period
Chagunda MGG; Romer DAM; Roberts DJ (2009)The objective of the study was to determine the effect of genotype and feeding regime on enteric methane production, non-milk nitrogen and production performance during the winter feeding period. Two sets of traits were ... -
The effect of nutritional strategy on methane emissions, milk yield and fatty acid profiles in Holstein Friesian dairy cows
March MD; Dewhurst RJ; Chagunda MGG; Hargreaves PR (2018)Methane (CH4) emissions are a product of the enteric fermentation of ruminants. Individual dairy cows vary in the quantity of CH4 they produce with estimates ranging from 278 to 456g CH4/d (Garnsworthy et al., 2012) and ... -
Estimating degree of mastitis from time-series measurements in milk: a test of a model based on lactate dehydrogenase measurements
Friggens NC; Chagunda MGG; Bjerring M; Ridder C; Hojsgaard S; Larsen T (2007) -
Evaluation of carcass quality of growing rabbits (Oryctolagus cunniculus) fed soybean (Glycine max), cowpea (Vigna unguiculata) and pigeon pea (Cajanus cajan)
Chisowa, DM; Mtimuni, JP; Phoya, RKD; Chagunda MGG (2013)Rabbit responses to Pigeon pea (PP), Cowpea (CoP) and Soybean (SB) as sources of protein for growing rabbits were determined. Flemish Giant (FG), California Black (CB) and New Zealand White (NZW)) were fed Soybean (Glycine ... -
Evaluation of the laser methane detector to estimate methane emissions from ewes and steers
Ricci P; Chagunda MGG; Rooke JA; Houdijk JGM; Duthie C-A; Hyslop J; Roehe R; Waterhouse A (2014)The laser methane detector (LMD) has been proposed as a method to characterize enteric methane (CH4) emissions from animals in a natural environment. To validate LMD use, its CH4 outputs (LMD-CH4), were compared against ... -
Genetic diversity and population structure of Malawi zebu cattle
Changadeya W; Mbali AJD; Nyirenda JC; Chagunda MGG; Kaunda E (2012)The aim of this study was to determine the genetic diversity and population structure of Malawi Zebu cattle using microsatellite DNA markers. Blood samples were collected in 5 administrative districts of Malawi and analysed ...