Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica

Stały URI zbioru

https://oa.zut.edu.pl/handle/20.500.12539/675

Na łamach czasopisma Folia Pomeranae Universitatis Technologiae Stetinensis seria Agricultura, Alimentaria, Piscaria et Zootechnica zamieszczane są oryginalne prace naukowe, recenzowane komunikaty naukowe oraz prace przeglądowe z zakresu nauk rolniczych (agronomia, ogrodnictwo, zootechnika, nauki o żywności oraz rybactwo. Akceptowane są również artykuły dotyczące kształtowania środowiska.

Wszystkie publikowane artykuły są oceniane przez dwóch niezależnych recenzentów oraz komitet redakcyjny czasopisma. Zeszyty czasopisma ukazują się kwartalnie w formie papierowej i elektronicznej. Pełne teksty artykułów w wersji elektronicznej są dostępne nieodpłatnie na stronie internetowej czasopisma.

ISSN: 2081-1284 (print), 2300-5378 (online)

GICID:71.0000.1500.1420

DOI:10.21005/AAPZ

Strona internetowa: http://foliaaapz.zut.edu.pl

Wydawca: Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie

Kraj: PL

Języki publikacji: EN

Skrót: FPUTS

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Teraz wyświetlane 1 - 9 z 9

Open Access
Analysis of profitability of raw milk production in a commercial farm before and after Poland's accession to the EU
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Stanisławski, Daniel; Czerniawska-Piątkowska, Ewa; Nowak, Anna K.; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences,; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences,; Computer Lab, Poznań University of Life Sciences; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences
The aim of this study was to analyse milk production profitability over a period of more than a decade in a commercial farm in terms of two periods: prior to Poland's accession to the EU (from 1998 to April, 2004) and after accession (from May, 2004 to 2012). Obtained source data made it possible to calculate mean annual values for the following items in these calculations: the number of cows, production of milk sold, production of milk to be fed, milk sales price, calf rearing, sales of slaughter cattle, sales of culled cows, total income from milk production, direct costs, feed costs, handling costs, indirect costs including depreciation, total milk production costs, direct costs per 1 l produced milk, total costs per 1 l produced milk, profit/loss from cattle production, profit/loss from 1 l produced milk, value of production per 1 cow, profit/loss from milk production per 1 cow, the ratio of milk sales price to production costs and profitability index for milk production. Within this study data were also collected on profit/loss per 1 l produced milk and milk production profitability indexes in the analysed years. It was shown that following Poland's accession to the EU in the analysed farm statistically highly significant changes were observed in income and costs connected with the production of raw milk. Values of these parameters increased in comparison to the previous period. An increase was recorded in milk production and profit per 1 cow, which was most probably a consequence of breeding work and gained genetic progress and increased productivity in the herd. However, when comparing the period before and after Poland's accession no statistically significant differences were found for profit/loss per 1 l produced milk and milk production profitability indexes. The post-accession period in relation to the previous period was characterised by more dynamic changes in profitability indexes for raw milk production, which resulted in a lesser stability in profitability for this branch of animal production.
Open Access
Causes for Culling and Reproductive System Disorders in Jersey Cows in the Reproductive Period
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Stanisławski, Daniel; Czerniawska-Piątkowska, Ewa; Rolińska, Karolina; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland; Computer Lab, Poznań University of Life Sciences, Poznań, Poland; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland
The aim of this study was to analyse culling causes and determine reproductive health disorders in Jersey cows in the reproduction period in a herd from the Wielkopolska region. Analyses were conducted on 331 Jersey cows. The material for analyses was collected for the years 2010–2015 from the performance records of dairy cows, the AfiFarm herd management programme and veterinary inspection records. Source data concerned causes of cow culling and reproductive system disorders found in the reproduction period (i.e. from calving to successful fertilisation). Culling causes were divided based on the criterion applied by the Polish Federation of Cattle Breeders and Dairy Farmers. In this study the shares of culling causes were determined and the frequency of individual reproductive system disorders in the reproduction period were calculated in terms of the division into primiparous and multiparous cows. Sterility and reproductive system disorders were the most frequent culling causes in Jersey cows. In turn, endometritis was the most frequent reproductive disorder in cows of this breed in the reproduction period. No statistically significant relationship was found between the age group of cows (primiparous vs. multiparous) and the frequency of specific reproductive system disorders. The incidence rate of reproductive system disorders in Jersey cows in the reproduction period may most probably be reduced at a continuous improvement of environmental factors affecting these animals.
Open Access
Characteristics of Reproduction Traits in Cows with Record Lifetime Milk Yields
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2022) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin, Poland
The aim of this study was to characterise basic reproduction indexes and to investigate the effect of selected factors on values of analysed fertility parameters in cows (100 head) with record lifetime milk yields. The experiments were conducted on Polish Holstein-Friesian Black- -and-White cattle. Cows with lifetime milk yields of min. 100 thousand kg milk were considered record holders. Animals were selected at random from herds covered by performance testing in the Poznań testing region in the years 2003–2016. It was shown that analysed cows with record lifetime milk yields exhibited slightly reduced fertility. The animals had the preferred mean age at first calving and adequate average length of pregnancy. Relatively high numbers of semen doses required for successful insemination resulted in an extended length of calving interval, interpregnancy period and artificial mating service.In the management of dairy cow herds focusing on high lifetime productivity and fertility traits it is recommended to control reproduction so that calvings take place in winter and cows calve for the first time at the age of maximum 27 months.
Open Access
Dependencies Between Cattle Breed and Profitability of Raw Milk Production
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2019) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Powchowicz, Mikołaj; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poland; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin, Poland
The aim of the study was to compare profitability of raw milk production in two herds, one of Jersey cows (J) and the other of Polish Holstein-Friesian Black-and-White cows (PHF), owned by the same economic entity. In this study daily actual and standardised (FCM and VCM) milk yields as well as milk composition were compared between Jersey and PHF cows in terms of age groups (primiparous vs. multiparous cows). Within the Jersey and PHF breeds for each year of the analysed period a balance of revenue and costs from raw milk production was prepared, while production indexes were calculated, i.e. total production cost of 1 l milk, net income from cattle production, net income from the production of 1 l milk, the value of milk production per cow and net income per cow. A more advantageous actual daily milk yield, daily milk yield expressed as FCM and VCM as well as the value of daily milk production were recorded for primiparous PHF cows in comparison to their Jersey peers. In that age group of cows in terms of milk composition, greater contents of fat, protein, solids as well as somatic cell count were found for primiparous Jersey cows. In the case of multiparous cows except for daily FCM and somatic cell count (means did not differ significantly), similar dependencies were recorded for the analysed parameters as those observed for primiparous cows. When comparing profitability indexes for raw milk production in the years 2014–2016 between the Jersey and PHF herds it was shown that in 2014 and 2015, despite lower average milk yields, net income from the production of 1 l milk was the greatest in the Jersey herd, while in 2016 a more advantageous value of this index was recorded for the PHF cows in relation to Jersey cows. In conclusion it may be stated that costs incurred for raw milk production are dependent on specific conditions in a given herd or farm, this it is a rational approach to continuously reduce outlays on milk production combined with improvement of production and functional traits in cows. If the total production costs per 1 l milk in the Jersey and the PHF herds are comparable, greater profitability of raw milk production is observed for Jersey cows. This results from the higher price for sale of milk coming from cows of this breed.
Open Access
Dependencies between PIT-1 gene polymorphism and production progress in polish holstein-friesian black-and-white cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Stanisławski, Daniel; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Computer Lab, Poznań University of Life Sciences; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin
The aim of this study was to analyse the dependence between PIT-1 gene polymorphism in exon 6 of bovine chromosome 1 (c.1178G>A) and the level of production progress in Polish Holstein-Friesian Black-and-White cows. The greatest annual production progress and cumulative progress for the yield of milk and milk fat was found for the AA homozygotes. For the yield of milk protein more advantageous values of calculated parameters were recorded for the GG homozygotes.
Open Access
Dependencies between prl gene polymorphism and production progress in polish holstein-friesian black-and-white cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Stanisławski, Daniel; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Computer Lab, Poznań University of Life Sciences; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin
The aim of this study was to analyse dependencies between PRL gene polymorphism within exon 4 of bovine chromosome 23 (locus g.8398G>A), and the level of production progress in milk yield, yields of milk fat and milk protein in Polish Holstein-Friesian Black-and- -White cows. Results of this study indicate dependencies between genotype at locus g.8398G>A of the PRL gene and production progress in terms of milk yield as well as the yields of milk fat and milk protein. The greatest production progress and cumulative progress for milk yield as well as yields of milk fat and milk protein were shown for the AG heterozygotes at locus g.8398G>A, while the lowest values of analysed parameters were recorded for the AA homozygotes.
Open Access
The Effect of Selected Factors on Rearing Performance of Charolais Calves
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2023) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin, Poland
The aim of this study was to determine the effect of selected factors on rearing performance of Charolais calves to day 90 of life. The experimental material comprised 83 Charolais cows calving in the winter and spring seasons and calves they reared (84 head) to day 90 of life. All calves born by the experimental females were weighed at birth and then at days 30, 60 and 90 of life. Calves were also subjected to zoometric measurements. Their height at sacrum and width at hips were measured at days 10 and 30 of life. The increments for height at sacrum and width at hips between day 10 and 30 of life were calculated for the calves. Rearing indexes of the calves were assessed in terms of calf sex (heifer vs. bull calves), calving season (winter vs. spring), successive calving of the cow (1, 2, 3 and >3), parturition type (normal vs. dystocia), body condition of the cow after calving (good vs. poor). It was shown that rearing performance of Charolais calves to day 90 of life was significantly affected by their sex, calving season, parturition type and body condition of the dam during calving. The most advantageous results for the assessed rearing parameters of Charolais calves to day 90 of life were recorded for male animals born in the winter season coming from normal births and produced by dams in good body condition during parturition.
Open Access
The effect of selected factors on freshening milking efficiency in primiparous polish holstein-friesian black-and-white cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Stanisławski, Daniel; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences; Computer Lab, Poznań University of Life Sciences; Department of Ruminant Science, West Pomeranian University of Technology
Sire origin as well as age and body weight of heifers at fertilization were shown to have a statistically significant effect on freshening milking efficiency in Polish Holstein-Friesian Black- -and-White primiparous cows. The highest milk yields during the freshening stage were recorded for daughters of bulls from North America and primiparous cows, which were fertilized as heifers aged 16 months and at body weight 475 kg. Most probably the high genetic potential of HF cattle from North America, exceeding European cattle in terms of milk yield, was connected with the longer period of their upgrading and in combination with the improvement of local production conditions ensured the most advantageous results. It seems that milk yield in the freshening period is affected by body weight and development of heifers rather than their age at fertilization. In order to reduce the rearing stage in young females it is recommended in that period to apply more intensive nutrition.
Open Access
The Effect of Selected Factors on Milking Rate in Polish Holstein-Friesian Black-And-White Cows.
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2022) Pytlewski, Jarosław; Antkowiak, Ireneusz R.; Czerniawska-Piątkowska, Ewa; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Animal Breeding and Product Quality Assessment, Poznań University of Life Sciences, Poznań, Poland; Department of Ruminant Science, West Pomeranian University of Technology, Szczecin, Poland
The aim of the study was to investigate the effect of selected physiological factors (age, lactation stage and daily milk yield) on milking rate by Polish Holstein-Friesian Black-and-White cows. The duration of morning, evening and diurnal milking was determined. Milking rate of cows was char acterized based on the mean actual and corrected milk yield per 1 minute of milking. Statistical analy sis showed a lack of any dependence between the age group of cows and milking duration as well as mean actual and corrected milk yields in the minute of milking. Milking time decreased with progress in lactation. In terms of the mean milk yield the lowest value of this parameter was recorded for cows being in their first stage of lactation (≤ day 40). Cows with greater daily milk yields compared to those producing less milk were characterized by longer milking times and greater mean actual and corrected milk yields in the minute of milking. Milking rate of cows is a functional trait of considerable importance in the economics of raw milk production. The selection towards of an increase in milk yield, may have a positive effect on milking rate in cows.

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Przeglądaj Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica wg Autor "Antkowiak, Ireneusz R."

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