Revisiting summer infertility in the pig: could heat stress-induced sperm DNA damage negatively affect early embryo development?Animal Production Science - Tập 57 Số 10 - Trang 1975 - 2017
Santiago T. Peña, Bruce Gummow, A. J. Parker, Damien B.B.P. Paris
Temperature is a crucial factor in mammalian spermatogenesis. The scrotum,
pampiniform plexus, and cremaster and dartos muscles in mammals are specific
adaptations to ensure sperm production in a regulated environment 4−6°C below
internal body temperature. However, the limited endogenous antioxidant systems
inherent in mammalian spermatozoa compounded by the loss of cytosolic repair
mechanisms dur... hiện toàn bộ
Future research priorities for animal production in a changing worldAnimal Production Science - Tập 51 Số 1 - Trang 1 - 2011
Nigel Scollan, P. L. Greenwood, C. J. Newbold, David R. Yáñez Ruiz, Kevin J. Shingfield, R. J. Wallace, Jean-François J.-F. Hocquette
This paper reports the outcomes from an International Workshop on ‘Animal
Production in a Changing World’ held in Clermont-Ferrand (INRA-Theix, France) on
9–10 September 2009 in which 35 participants from 15 different countries
participated. The main objective was to discuss the main challenges within the
livestock sector: its environmental impact and role in global climate change;
balancing the n... hiện toàn bộ
GPS observation of shelter utilisation by Merino ewesAnimal Production Science - Tập 51 Số 8 - Trang 724 - 2011
Donnalee Taylor, Derek Schneider, Wendy Brown, Ian Price, Mark Trotter, David Lamb, Geoffrey Hinch
The present study examined how shelter availability, altitude and temperature
influence paddock utilisation by pregnant and lambing Merino ewes. Global
positioning systems (GPS) attached to collars allowed continuous tracking of
ewes’ positions within two paddocks, and environmental conditions were also
monitored throughout this time using temperature loggers. Animal tracking
devices (UNEtracker G... hiện toàn bộ
Forage intake, digestibility and performance of cattle, horses, sheep and goats grazing together on an improved heathlandAnimal Production Science - Tập 57 Số 1 - Trang 102 - 2017
K. Osoro, L.M.M. Ferreira, U. García, A. Martínez, R. Celaya
A mixed herd of five cows, five mares, 32 ewes and 32 goats was managed with
their offspring during two consecutive years in a paddock (22.3 ha) with 76% of
heathlands and 24% of improved pasture area, with the aim of studying their
differences in ingestive behaviour and performance. Diet composition, dry matter
intake (DMI) and digestibility (DMD) were estimated on three occasions using the
alkan... hiện toàn bộ
Public concerns about dairy-cow welfare: how should the industry respond?Animal Production Science - Tập 57 Số 7 - Trang 1201 - 2017
Daniel M. Weary, M.A.G. von Keyserlingk
Common practices on dairy farms have fallen out of step with public values, such
that the dairy industry has now become a target for public criticism. In the
present paper, we describe some of the forces that have led to the current
situation, and various potential methods to rectify the situation. One approach
is to shield industry practices from public scrutiny, for example, by using
‘ag-gag’ le... hiện toàn bộ
The effect of perennial ryegrass ploidy and white clover inclusion on milk production of dairy cowsAnimal Production Science - Tập 60 Số 1 - Trang 143 - 2020
Bríd McClearn, T. J. Gilliland, C. Guy, Michael Dineen, F. Coughlan, B. McCarthy
Grazed grass is considered the cheapest feed available for dairy cows in
temperate regions, and to maximise profits, dairy farmers must utilise this
high-quality feed where possible. Recent research has reported that including
white clover (Trifolium repens L.) in grass swards can have a positive effect on
milk production. The aim of the present study was to quantify the effect of
tetraploid and d... hiện toàn bộ
Ruminant enteric methane mitigation: a reviewAnimal Production Science - Tập 51 Số 6 - Trang 491 - 2011
DJ Cottle, J. V. Nolan, S. G. Wiedemann
In Australia, agriculture is responsible for ~17% of total greenhouse gas
emissions with ruminants being the largest single source. However, agriculture
is likely to be shielded from the full impact of any future price on carbon. In
this review, strategies for reducing ruminant methane output are considered in
relation to rumen ecology and biochemistry, animal breeding and management
options at an... hiện toàn bộ
Empowering farmers for increased resilience in uncertain timesAnimal Production Science - Tập 55 Số 7 - Trang 843 - 2015
Ruth Nettle, Margaret Ayre, Ruth Beilin, Sharon Waller, LR Turner, Andy Hall, LD Irvine, Greg Taylor
As farmers continue to face increasingly uncertain and often rapidly changing
conditions related to markets, climate or the policy environment, people
involved in agricultural research, development and extension (RD&E) are also
challenged to consider how their work can contribute to supporting farmer
resilience. Research from the social sciences conducted in the past decade has
focussed on adaptab... hiện toàn bộ