Phenotypic variability of milk traits in Simmental bull dams

Pantelic, V.; Skalicki, Z.; Petrović, M.M.; Aleksić, S.; Miscevic, B.; Ostojic, Dusica

doi:10.2298/bah0502031p

Cited by 6 publications

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“…Very similar results for milk traits were obtained by Pantelić et al(2008a), , and higher values are reported by Nikšić et al(2011), Petrović et al(2006) and Pantelić et al(2013). Regarding the results of reproductive traits, they are very similar to those obtained in the research by Pantelić et al(2008Pantelić et al( , 2013, and slightly higher than the results of Đurđević (2001).…”

Section: Resultssupporting

confidence: 83%

“…The calving season caused significant deviations in the quantity of milk fat, which was the highest in the third season -148.06 kg, and the lowest in the second -140.58 kg. Pantelić et al(2008b) have found a statistically significant effect (P<0.01) of the calving year and season on age at first calving and duration of service period. Milk production in Serbia is still mainly realized on relatively small farms, often with less than 10 cows, but it is not negligible in terms of the total quantity of milk that is produced, nor in terms of the number of people engaged in this production.…”

Section: Resultsmentioning

confidence: 81%

“…The yield of 4% FCM was 4.213 kg. Pantelić et al(2008a) have analysed the phenotypic variability of milk production traits of Simmental first calving cows in Serbia. Using the method of least squares, average values are obtained for the lactation period -317.94 days, milk yield -3872.65 kg, milk fat content -3.87%, the milk fat yield -149.78 kg and yield of 4% FCM -3795.82 kg.…”

Section: Introductionmentioning

confidence: 99%

“…In the research of the variability of age at calving and service period of first calving Simmental Pantelić et al(2008b)…”

Section: Introductionmentioning

confidence: 99%

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The effect of genetic and non-genetic factors on production traits of Simmental cows

et al. 2014

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This study covered 737 controlled first calving Simmental cows with, lactations concluded within one year. All first calving animals were on the farms of individual farmers in the municipalities of Kragujevac and Mladenovac. The research included the influence of bull sires, year and season of calving on milk yield and fertility. Least squares method was used to determine the average duration of lactation of 323.74 days. For a period of 305 days, heifers produced 3701.67 kg of milk, or 3644.58 kg of 4% FCM. The average production of milk fat was 144.26 kg and milk fat content was 3.88%. The interval from calving to first insemination lasted in average 124.19 days, and the animals were first calved at the age of 789.95 days. The bull sires had a highly significant effect (P<0.01) on the duration of lactation, milk yield and 4% FCM, milk fat yield and content and age of cows at first calving. The duration of service period was not under significant effect (P>0.05) of bull sires. Year of calving had a significant effect (P<0.01) on the duration of lactation, production of milk, milk fat and 4% FCM. Milk fat content, service period and age at first calving did not show significant variation due to the impact of different years of calving (P>0.05). Season of calving of cows demonstrated highly significant effect (P<0.01) on the production of milk and 4% FCM, and significant (P>0.05) on the production of milk fat, however it had no effect (P>0.05) on the milk fat content, duration of lactation and service period and age at calving.

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Section: Resultssupporting

confidence: 83%

Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

“…In the research of the variability of age at calving and service period of first calving Simmental Pantelić et al(2008b)…”

Section: Introductionmentioning

confidence: 99%

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The effect of genetic and non-genetic factors on production traits of Simmental cows

et al. 2014

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Results of the application of the technology of genetic improvement of Simmental cattle population in Serbia

et al. 2006

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Content: Results of production traits obtained from first calving cows and evaluation of the breeding value of bull sires of Simmental breed in Serbia. Data was analyzed using the method of least squares and for evaluation of bulls' breeding value mixed model of random sire effect (BLUP method). Based on obtained results it was established in statistical analysis that breeding region had highly significantly affected (P<0.01) the deviation of production traits from the general average. Considerable deviation from the general average was caused by the year and season of calving (P<0.05), and interaction of breeding region and calving season contributed to high variation in yield of milk and milk fat (P<0.01).

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Selection of bull dams in population of Simmental cattle

2009

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Increase of production and improvement of the quality of milk, as well as of the intensity of fertility, are main prerequisites of modern cattle production. For the purpose of production of domestic Simmental bulls it is necessary to select the best cows from main herd. These heads as a rule represent approx. 1% of best cows in the controlled population primary in regard to production of milk and milk fat, but also in regard to body development, udder development and fertility traits. Fertilization of bull dams is done according to adequate system, where, for each dam, annually, bull, previously selected as sire, is determined, whose semen will be used for her insemination. Since the fastest way for selection and genetic progress is sire-son line, the most attention is directed to selection of bull sires. In Serbia, annually, only very few bulls are tested, which is insufficient for realization of greater and faster genetic improvement of production and reproduction traits of Simmental population of cattle. Therefore, centres for artificial insemination often import semen of elite bulls for planned insemination of Simmental bull dams, or borrow young bulls from abroad (waiting bulls) whose semen is used for insemination of main population. In this paper criteria for selection of cows into category of bull dams are presented as well as results relating to milk production, fertility, body development and type score of bull dams of Simmental breed in Central Serbia.

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Phenotypic variability of milk traits in Simmental bull dams

Abstract: nema

Cited by 6 publications

References 0 publications

The effect of genetic and non-genetic factors on production traits of Simmental cows

The effect of genetic and non-genetic factors on production traits of Simmental cows

Results of the application of the technology of genetic improvement of Simmental cattle population in Serbia

Selection of bull dams in population of Simmental cattle

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