Results 31 to 40 of about 21,540 (161)
To Cull or Not To Cull? Considerations for Studies of Endocrine-Disrupting Chemicals
Endocrinology, 2016 The power of animal models is derived from the ability to control experimental variables so that observed effects may be unequivocally attributed to the factor that was changed. One variable that is difficult to control in animal experiments is the number and composition of offspring in a litter. To account for this variability, artificial equalization
Alexander, Suvorov, Laura N, Vandenberg
openaire +3 more sources
Animal, 2016 The objective of this research was to evaluate the survival rate of primiparous heifers within a large sample of herds across the United Kingdom and specifically to assess the association between age at first calving (AFC) on their survival.
V.E. Sherwin +3 more
doaj +1 more source
Veterinary Record, 2013 I WOULD like to explain the role of the Independent Expert Panel (IEP) in the badger culling pilots.The IEP was established to help ministers evaluate the effectiveness (in terms of the numbers of animals removed), humaneness and safety of shooting badgers in the two pilot areas.
Mark, Jones +11 more
openaire +4 more sources
Mortality pattern of Murrah buffalo males in an organised herd [PDF]
Veterinary World, 2014 Aim: The present study was carried out to analyze mortality pattern in Murrah buffalo males in National Dairy Research Institute herd. Materials and Methods: Records of 1029 Murrah buffalo males born during the period 1997-2012, at NDRI, Karnal, were ...
Pushp Raj Shivahre +7 more
doaj +1 more source
Age and lactation specific disposal pattern in Sahiwal cattle and influence of various genetic and non-genetic factors [PDF]
Veterinary World, 2014 Premature disposal of female calves before reaching milch herd and undesirable disposal of lactating cows are the major constraints in achieving larger herd size.
A. Upadhyay +7 more
doaj +1 more source
Impacts of self- and cross-sucking on cattle health and performance [PDF]
Veterinary World, 2016 Background: Improvement of dairy farms economics requires intensification, automatic milking, and artificial rearing methods. The ability to express normal behavior is one of the five freedoms to achieve animal welfare, whereas the display of abnormal ...
Motamed Elsayed Mahmoud +2 more
doaj +1 more source
Animals, 2023 Pair housing of pre-weaning dairy calves has previously demonstrated positive impacts on their growth, health and behaviour, but longer-term effects on production are still relatively unknown.
Sophie A. Mahendran +3 more
doaj +1 more source
Royal Society Open ScienceIn the second investigation in a pair of analyses which re-evaluates the Randomised Badger Culling Trial (RBCT), we estimate the effects of proactive badger culling on the incidence of tuberculosis (TB) in cattle populations in unculled neighbouring ...
Cathal L. Mills +2 more
doaj +1 more source
Primary seed production of the spring barley varieties developed by the FSBSI “ARC “Donskoy”
Зерновое хозяйство России, 2022 The current paper has presented the data on the organization of primary seed production of spring barley. There has been considered the concept of “primary” seed production, which is based on the individual-family method of selecting families with a two ...
G. A. Filenko +3 more
doaj +1 more source