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Single-step genome-wide association study for social genetic effects and direct genetic effects on growth in Landrace pigs
(Nature Research, 2020-09-11)
In livestock social interactions, social genetic effects (SGE) represent associations between phenotype of one individual and genotype of another. Such associations occur when the trait of interest is ...
Intact tails as a welfare indicator in finishing pigs? Scoring of tail lesions and defining intact tails in undocked pigs at the abattoir
(Frontiers Media, 2020-07-16)
Tail biting lesions are a potential measure of on-farm animal welfare, as a large range of stressors increase the risk for tail biting outbreaks. Further, tail biting is a major challenge, as lesions ...
A Meta-analysis Describing the Effects of the Essential oils Blend Agolin Ruminant on Performance, Rumen Fermentation and Methane Emissions in Dairy Cows
(MDPI, 2020-04-03)
There is an increasing pressure to identify feed additives which increase productivity or decrease methane emissions. This paper aims to elucidate the effects of supplementing a specific essential oils ...
Evaluating the potential role of tryptophan in calf milk replacers to facilitate weaning
(Elsevier, 2020-05-29)
Tryptophan is a precursor of serotonin, a neurotransmitter that participates in the control of the affective state of an animal. We hypothesized that Trp supplementation could help dairy calves to cope ...
Breeding farm, level of feeding and presence of antibiotics in the feed influence rabbit cecal microbiota
(BMC, 2020-11-02)
Background
The effect of the production environment and different management practices in rabbit cecal microbiota remains poorly understood. While previous studies have proved the impact of the age or ...
Effect of transport and rest stop duration on the welfare of conditioned cattle transported by road
(Public Library of Science, 2020-03-02)
The effects of providing rest on physiological and behavioural indicators of welfare of cattle being transported by road has not been well studied in North America. New revisions to Canada’s Health of ...
Genome-wide association study for feed efficiency in collective cage-raised rabbits under full and restricted feeding
(Wiley, 2020-07-22)
Feed efficiency (FE) is one of the most economically and environmentally relevant traits in the animal production sector. The objective of this study was to gain knowledge about the genetic control of ...
Neurobiology of environmental enrichment in pigs: hanges in monoaminergic neurotransmitters in several brain areas and in the hippocampal proteome
(Elsevier, 2020-08-16)
Environmental enrichment in porcine farms improves animal welfare and leads to better public acceptance. To better understand the neurological mechanisms of the response to environmental enrichment, ...
Selection for feed efficiency using the social effects animal model in growing Duroc pigs: evaluation by simulation
(BMC, 2020-09-29)
Background
Traits recorded on animals that are raised in groups can be analysed with the social effects animal model (SAM). For multiple traits, this model specifies the genetic correlation structure ...
Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin
(Springer, 2020-08-25)
We studied the effect of heat stress on milk quality in Spanish organic dairy farms using
published milk productivity equations. We collected data from 23 weather stations and
14,424 milk test-days ...