The effect of temperament on weight gain of Hungarian Merino, German Merino and German Blackhead lambs

Pajor, F.; Szentléleki, A.; Láczó, E.; Tőzsér, J.; Póti, P.

doi:10.5194/aab-51-247-2008

Cited by 25 publications

(13 citation statements)

References 2 publications

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“…The sheep produce 4-5 kg wool annually with 30-35 microns finesses, 7-8 cm fleece length and 48-50 washing yield. An important trait of these breed is its high prolificacy, 180-200%, the reproductive precocity (the young ewes enter reproduction at 10-12 months) and the very long mating season (Pajor, 2004).…”

Section: Introductionmentioning

confidence: 99%

The influence of strain and age on some egg quality parameters of commercial laying hens

2011

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The experiment was conducted to evaluate the influence of strain and age on some egg quality parameters (egg weight and egg shell strength) of commercial laying hens. Layers of lines ISA Brown and DeKalb White were examined in period of nine months. Both lines were at same age (28 weeks) and were confined in common facility in battery cages. Laying hens were reared and fed according to standard breeding technology. Once a month 25 eggs of each line were taken to be examined for eggshell strength and egg weight, or in other words, total 450 table eggs were tested. Analises were done in Laboratory for testing egg quality by gaudges Egg Multi Tester EMT 5200 and Egg shell Gauge (Robotmation Co. Ltd., Tokyo, Japan) which have computerised equipment to examine quality and physical characteristics of eggs. Statistic analyses on results were done by computer sub-programme ANOVA and Fisher's LSD test to determine the level of statistical significant difference between examined factors. Egg weight was under significant impact of age (P ? 0,05), but not under the influence of strain, although eggs of ISA Brown line were insignificantly heavier than eggs of DeKalb White line. Eggs were heaviest at layers with older age, while they were lightest at younger birds. The results have shown significant differences (P ? 0,05) in eggshell strength compared to line influence (genotype) and months of age. Eggs from ISA Brown laying hens had much better and eggshell strength than those eggs from DeKalb White. Correlations between eggshell strength and egg weight were with significant (R < 0,05) negative value, which indicating that with increasing egg weight decreases of eggshell strength.

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Section: Introductionmentioning

confidence: 99%

The influence of strain and age on some egg quality parameters of commercial laying hens

2011

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“…It is well-known that the temperament of animals is affected by various factors such as breed, sire and age (Burrow 1997, Broucek et al 2003. Nevertheless, some authors (such as Pajor et al 2008) did not find significant differences between the temperament of ram and ewe lambs during fattening.…”

Section: Introductionmentioning

confidence: 95%

The influence of temperament on cortisol concentration and metabolic profile in Tsigai lambs

et al. 2013

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Abstract. The aim of the present study was to investigate the relationships between temperament score and blood cortisol concentration, as well as energy metabolic parameters (glucose, triglyceride, non-esterified fatty acid and cholesterol) in Tsigai lambs during fattening. The temperament of lambs was assessed (scored) by a temperament score test, where the behaviour of animals was evaluated in a 5-score system (1: calm, 5: nervous) while spending 30 sec on the scale during weighing. Based on temperament scoring at the beginning of fattening 7, 6 and 7 lambs were selected according to temperament categories as calm (1 score 1), intermediate (score 3) and nervous lambs (scores 4 and 5), respectively. At this time, our study did not show any correlation between temperament score, blood cortisol concentration and the metabolic profile. However, at the end of fattening, the calmer lambs had lower cortisol concentrations (2.60 nmol/l) compared to the more nervous lambs (8.07 nmol/l). The calm lambs had lower (P<0.05) non-esterified fatty acid (0.37 mmol/l), cholesterol (1.44 mmol/l) and glucose (3.29 mmol/l) and higher triglyceride (0.98 mmol/l) concentrations and daily weight gain (447.45 g/day) compared to the excitable ones (0.81, 1.86, 4.14, 0.57 mmol/l and 366.84 g/day). These data prove that an increased temperament score, through the higher cortisol concentration, has a great effect on the lambs' energy metabolic profile, which influences the fattening performance.

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“…Temperament has been shown to have an effect on lamb survival and growth rate (Murphy, 1999;Pajor et al, 2008), meat quality (Ferguson and Warner, 2008), and sheep reproductive performance (Blache and Bickell, 2011). Moreover, animals that are highly reactive to humans and handling exhibit poor adaptation to their environment and experience high levels of stress, reducing their level of welfare (Bickell et al, 2009).…”

Section: Introductionmentioning

confidence: 97%

Effects of behavioral reactivity on production and reproduction traits in Dorper sheep breed

Gavojdian

Cziszter

Budai

et al. 2015

Journal of Veterinary Behavior

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The effect of temperament on weight gain of Hungarian Merino, German Merino and German Blackhead lambs

Cited by 25 publications

References 2 publications

The influence of strain and age on some egg quality parameters of commercial laying hens

The influence of strain and age on some egg quality parameters of commercial laying hens

The influence of temperament on cortisol concentration and metabolic profile in Tsigai lambs

Effects of behavioral reactivity on production and reproduction traits in Dorper sheep breed

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