نتایج جستجو برای: developing lamb
تعداد نتایج: 349013 فیلتر نتایج به سال:
Body condition was scored at lambing (BCSL) on 101 mature (4 to 7 yr old) Polypay ewes and related to colostral immunoglobulin G (IgG) concentration and lamb performance. Colostrum samples were collected from each ewe within 12 h of lambing and litters of more than two lambs were reduced to two within 2 h of lambing. Colostral IgG concentrations decreased rapidly with time (b = -3.28; R2 = .213...
Background: The objective of this studywas to investigate the effect of high and moderate summer ambient temperatures on testicular structures and endocrine profile of developing ram lambs. Materials and Methods: Twenty fall-born ramlambswere randomly divided into two groups: animalswere kept outdoor (n = 10) under ambient temperature (31-50°C) or maintained indoor (26-32°C) from May to October...
presentation of a very rare monster case in the sheep was highlighted. a monster lamb twinned to a normal lamb. cesarean section, morphological examination and necropsy. at cesarean operation, a live male twin and a phenotypically male monster were delivered. the monster was diagnosed as holoacardius acephalus.presentation of a very rare monster case in the sheep was highlighted. a monster lamb...
The number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. This depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. Optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...
We present the calculation of Next-to-Leading-Order Quantum Chromo Dynamics corrections for the production of a W or Z weak boson associated with a bottom anti-bottom quark pair at hadron colliders (pp̄, pp → W/Z bb̄), including the effects of a non-zero bottomquark mass. We find a considerable reduction of the renormalization and factorization scale dependence of our results with respect to Lead...
This paper contrasts the user-centred design with the gamification design framework and proposes a model of usability benefits adapted to gamification. The model is useful for selling the usability activities to management and strategists when developing gamified solutions, services, and software. In this paper, we focus on identifying the benefits since they can be used to legitimise the usabi...
developing supernumerary limbs is a rare congenital condition that only a few cases have been documented. depending on the cause and developmental conditions, they may be single, multiple or complicated, and occur as a syndrome or associated with other anomalies. polymelia is defined as the presence of extra limb(s) which have been reported in human, mouse, chicken, calf and lamb. it seems that...
a study was conducted to evaluate effects of age at weaning on various growth characteristics and stress measures of zandi lambs. the lambs were weaned at 45 and 90 days of age. the body weights and average daily gain (adg) were monitored during the experimental period and 5 months of age. cortisol, glucose, blood urea nitrogen (bun) and lamb behavior (agitation, vocalization) were recorded bef...
the number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. this depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...
This paper examines the environmental and management factors affecting lamb survival on high-performing sheep farms in New Zealand. Improved lambing percentage is the biggest contributor to higher profits on New Zealand sheep farms. Many sheep breeders have selected and bred ewes for increased fecundity over the last 4 decades. The increased proportion of ewes having triplets is of concern to f...
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