User profiles for Peter Løvendahl

Peter Løvendahl

Senior scientist
Verified email at qgg.au.dk
Cited by 6661

Aggressive behaviour of sows at mixing and maternal behaviour are heritable and genetically correlated traits

P Løvendahl, LH Damgaard, BL Nielsen… - Livestock Production …, 2005 - Elsevier
This study was designed to estimate genetic variation in aggressive behaviour of sows at
mixing, and in maternal ability for the same sows. The study included 835 sows observed for …

[HTML][HTML] Electrical conductivity of milk: ability to predict mastitis status

…, IR Korsgaard, NC Friggens, K Sloth, P Løvendahl - Journal of dairy …, 2004 - Elsevier
Electrical conductivity (EC) of milk has been introduced as an indicator trait for mastitis over
the last decade, and it may be considered as a potential trait in a breeding program where …

Genetic parameters for within-litter variation in piglet birth weight and change in within-litter variation during suckling

LH Damgaard, L Rydhmer, P Løvendahl… - Journal of Animal …, 2003 - academic.oup.com
The objective of this study was to ascertain whether maternal additive genetic variance
exists for within-litter variation in birth weight and for change in within-litter variation in piglet …

Host genetics and the rumen microbiome jointly associate with methane emissions in dairy cows

GF Difford, DR Plichta, P Løvendahl, J Lassen… - PLoS …, 2018 - journals.plos.org
Cattle and other ruminants produce large quantities of methane (~110 million metric tonnes
per annum), which is a potent greenhouse gas affecting global climate change. Methane (…

[HTML][HTML] Breed and parity effects on energy balance profiles through lactation: Evidence of genetically driven body energy change

…, IR Korsgaard, KL Ingvartsen, P Løvendahl… - Journal of Dairy …, 2007 - Elsevier
The aim of this study was to characterize patterns of energy balance through lactation of
cows kept under constant feeding conditions. Danish Holstein, Danish Red, and Jersey cows …

[HTML][HTML] Heritability estimates for enteric methane emissions from Holstein cattle measured using noninvasive methods

J Lassen, P Løvendahl - Journal of Dairy Science, 2016 - Elsevier
The objective of this study was to estimate heritability of enteric methane emissions from
dairy cattle. Methane (CH 4 ) and CO 2 were measured with a portable air-sampler and …

[HTML][HTML] On the use of milk composition measures to predict the energy balance of dairy cows

NC Friggens, C Ridder, P Løvendahl - Journal of Dairy Science, 2007 - Elsevier
Milk composition varies with energy status and was proposed for measuring energy balance
on-farm, but the accuracy of prediction using monthly samples is not high. With automated …

[HTML][HTML] Accuracy of noninvasive breath methane measurements using Fourier transform infrared methods on individual cows

J Lassen, P Løvendahl, J Madsen - Journal of Dairy Science, 2012 - Elsevier
Individual methane (CH 4 ) production was recorded repeatedly on 93 dairy cows during
milking in an automatic milking system (AMS), with the aim of estimating individual cow …

[HTML][HTML] Breeding for reduced methane emission and feed-efficient Holstein cows: An international response

CIV Manzanilla-Pech, P Løvendahl, DM Gordo… - Journal of Dairy …, 2021 - Elsevier
Selecting for lower methane (CH 4 ) emitting animals is one of the best approaches to
reduce CH 4 given that genetic progress is permanent and cumulative over generations. As …

Effects of social and physical stressors on growth hormone levels in dairy cows

L Munksgaard, P Løvendahl - Canadian Journal of Animal …, 1993 - cdnsciencepub.com
Plasma concentrations of growth hormone (GH) were studied in 40 Friesian cows in a
balanced block design. The cows were assigned to four treatments: (1) control, tie stalls; (2) …