Future variations in temperature, rainfall and stormintensity need to be translated into on-farm metrics understand the impacts on lambing date survival. A lamb survival model based heat loss was developed applied a daily time step present future climate scenarios, at three regions throughout lowerSouth Island representing hill lowland farms. scenarios (2040-2049) were modelled, forecast trends...

A three-generation full-sib resource family was constructed by crossing two commercial pig lines. Genotypes for 37 molecular markers covering chromosomes SSC1, SSC6, SSC7 and SSC13 were obtained for 315 F2 animals of 49 families and their parents and grandparents. Phenotypic records of traits including carcass characteristics measured by the AutoFOM grading system, dissected carcass cuts and me...

The economic return from cereal or cereal/vetch crops was determined using previously published and new agronomic herbage quality data experiments conducted at four sites across southern New South Wales, Australia, over years (2008 to 2011), evaluate the parameters of two wheat (Triticum aestivum L.), barley (Hordeum vulgare oat (Avena sativa one triticale (x Triticosecale) variety, grown as mo...

Background: Protected calcium salts-fatty acid-amino acid supplement contains high-density of energy that can be used as cattle feed. This study aimed to test the efficacy supplements in growth rate young Ongole crossbred bulls. Methods: Thirty bulls (345±14 kg; live weight±SEm) were ranked and blocked based on liveweight randomly allotted one three levels (A: null 0 g/kg; B: 0.3 g/kg C: 0.6 LW...

The liveweight of New Zealand beef cows has increased in recent decades due to selection for higher growth rates. Published data suggest that the efficiency cow production decreases with increasing liveweight. Changes herd size, feed demand, production, and cash operating surplus (COS) were simulated average mature varied 450, 500, 550, 600 kg. With total annual demand fixed at same level, all ...

The effect of growing Angus steers from 300 to 440 kg along three different growth paths on muscle-bone ratio is described. The growth rates studied were:High (H):-0.8 kg/day; Low (L):-0.4 kg/day and High-Maintenance (HM):-0.8 kg/day followed by a period during which liveweight was maintained constant. Muscle-bone ratio (MBR) was determined by complete dissection of one side of the carcass of e...

THE daily mthionine + cystine (MC) requirement of cobb-broiler chicken was estimated in three con­secutive experiments. In experiment 1, groups 30 day-old birds were fed one eight diets. The diets contained bet­ween 0.52% and 1.08% MC 0.08% stepwise in­crements. Liveweight gain peaked at 0.84% 0.76% levels during 1-21 days (period 1) 21-42 2) growth phases, respectively. intake/bird/d these 0.2...

Increasing demands for land is necessitating the optimisation of grazing used livestock production. Hormonal growth promoter implants (HGPI) are widely to improve cattle performance and thus land-use efficiency. However, there limited information on their efficacy in systems. Forty steers, 10 each breed (Angus, Hereford, Holstein, Overo Colorado), had rates monitored 85 days after which half re...