Animal Science Journal
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Systolic time intervals assessed by 2‐D echocardiography and spectral Doppler in the horse
Animal Science Journal - Tập 74 Số 6 - Trang 505-510 - 2003
ABSTRACTIn the present study, the ‘acoustic windows’ for the measurement of the
left ventricular systolic time intervals is studied by means of 2‐D
echocardiography and cardiac Doppler ultrasonography, and the normal values in
the horse (n = 112) are determined. The left ventricular isovolumetric
contraction time, the pre‐ejection period (PEP), as well as the left ventricular
ejection time (LVET) ...
Effect of linseed oil supplementation on performance and milk fatty acid composition in dairy cows
Animal Science Journal - Tập 87 Số 12 - Trang 1545-1553 - 2016
AbstractThirty‐six Holstein‐Friesian crossbred lactating dairy cows were used to
determine the effects of linseed oil supplementation on performance and milk
fatty acid (FA) profile. Three treatments were as follows: basal diet (56:44
Roughage:concentrate [R:C] ratio, dry matter basis) supplemented with 500 g of
palm oil as control (PO), 500 g mixture (1:1, w/w) of palm oil and linseed oil
(POLSO)...
Estimation of additive, maternal and non‐additive genetic effects of preweaning growth traits in a multibreed beef cattle project
Animal Science Journal - Tập 74 Số 3 - Trang 169-179 - 2003
ABSTRACTData from purebred and crossbred calves, consisting of Afrikaner (AF),
Charolais (CH), Simmental (ST) and Hereford and Aberdeen Angus combined (HA),
were analyzed to estimate breed additive effects, breed maternal effects,
average individual heterosis and average maternal heterosis. The traits studied
were birthweight (BW), weaning weight (WW) and preweaning average daily gain
(ADG) (kg). ...
Protective effects of melatonin on the in vitro developmental competence of bovine oocytes
Animal Science Journal - Tập 89 Số 4 - Trang 648-660 - 2018
AbstractThe present study investigated the effects of melatonin on bovine oocyte
maturation and subsequent embryonic development in vitro. Results showed that
the nuclear and cytoplasmic maturation, characterized by first polar body
extrusion, normal distribution of cortical granules and mitochondria, as well as
increased mitochondrial membrane potential, were significantly improved in
10−9 mol/L ...
Effect of estradiol‐17β during in vitro growth culture on the growth, maturation, cumulus expansion and development of porcine oocytes from early antral follicles
Animal Science Journal - Tập 86 Số 3 - Trang 251-259 - 2015
AbstractGrowing porcine oocytes from early antral follicles can acquire meiotic
and developmental competence under suitable culture conditions, but at lower
rates compared to full‐grown oocytes. We postulated that estradiol‐17β (E2)
supported the acquisition of meiotic and developmental competence as well as
cumulus‐expansion ability during growth culture. Growing oocytes from early
antral follicl...
Time course of changes in antioxidant activity of milk from dairy cows fed a trehalose‐supplemented diet
Animal Science Journal - Tập 84 Số 1 - Trang 42-47 - 2013
ABSTRACTThis study was to investigate the time course of changes to the
antioxidant activity of milk from cows fed a trehalose‐supplemented diet, and to
determine possible underlying mechanisms for observed changes. Six Holstein cows
were used, and subjected to two experimental feeding periods consisting of a 1%
trehalose‐supplemented diet for 10 days, followed by a basal diet only (no
trehalose) ...
Newborn calf welfare: A review focusing on mortality rates
Animal Science Journal - Tập 84 Số 2 - Trang 101-105 - 2013
AbstractCalf mortality control is vitally important for farmers, not only to
improve animal welfare, but also to increase productivity. High calf mortality
rates can be related to larger numbers of calves in a herd, employee
performance, severe weather, and the neonatal period covering the first 4 weeks
of life. Although the basic premise of preventing newborn calf mortality is
early detection and...
Improving transport container design to reduce broiler chicken PSE (pale, soft, exudative) meat in Brazil
Animal Science Journal - Tập 87 Số 2 - Trang 277-283 - 2016
AbstractThroughout the chicken production chain, transport from farm to the
commercial abattoir is one of the most critical sources of stress, particularly
heat stress. The aim of this work was to describe the performance of a new
prototype truck container designed to improve the microenvironment and reduce
the incidence of pale, soft and exudative (PSE) meat and dead on arrival (DOA)
occurrences....
Effect of transportation and pre‐slaughter water shower spray with resting on AMP‐activated protein kinase, glycolysis and meat quality of broilers during summer
Animal Science Journal - Tập 87 Số 2 - Trang 299-307 - 2016
AbstractThe aim of this study was to determine the effects of pre‐slaughter
transport during summer and subsequent water shower spray on stress, postmortem
glycolysis, energy metabolism and adenosine monophosphate‐activated protein
kinase (AMPK) in Pectoralis major (PM) muscle of broilers. Results indicated
that transport during high ambient temperature induced the release of plasma
corticosterone...
Pre‐slaughter mortality among turkeys related to their transport
Animal Science Journal - Tập 88 Số 4 - Trang 705-711 - 2017
AbstractOverall mortality among turkeys transported for slaughter in the Czech
Republic from 2009 to 2014 was 0.147%. The lowest mortality (0.023%) was found
in turkeys transported for distances up to 50 km; longer distances were
associated with increasing death rates, with the highest losses (0.543%)
recorded for distances from 201 to 300 km. Differences were also found when
comparing transport‐r...
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