|
|
The comparing of the economics of breeding cow in the free and stanchion housing
KOTTOVÁ, Michaela
The aim was to compare and evaluate the economics of breeding in the free and stanchion housing, in the free housing for the use of modern milking robots. The account has been taken as parameters of performance and fertility and return on investment in free housing with milking robots. The results of the holding area farming of 1800 hectares at an altitude of 500-800 meters above sea level, two stanchion housing and one free stalls, which were used in the milking robot is an economically challenging investment were evaluated in the study. All three stalls were followed for two years, the milk production and fertility were analyzed and the economics of processing the results were recorded in 1083 cows. It was found that in the stall with free housing and milking with robots, while costs increased, but compared to the breeding of stanchion housing has reached the breeding of higher productivity, lower losses and less incidence of health disorders. In the first period this activity showed a profit. In the second period, the results are affected by problems of low farm-gate milk prices, which persist to this day. Observed results suggest that the favorable economic situation of the company in terms of investment and breeding conditions can only recommend a change from a serious technology for open housing, but also the use of milking robots, which are significant savings in labor costs. However, it is necessary to allow for depreciation of new buildings and thus with the high cost of feeding cows the day or unit of production. Free housing has high performance and milk quality, was also detected in the free stall successful reproduction due to better recognize heat and favorable overall welfare of dairy cows.
|
|
|
Evaluation of performance and reproduction of Montbéliarde dams
JÍCHOVÁ, Eva
The objective of this study was assessing of utility and fertility in Montbéliarde cows and comparing with utility and fertility in Czech Spotted cows, bred in the same conditions. The recording was performed in the agricultural cooperative Bělčice, where both breeds are bred in the same conditions of environment, nutrition and care. The recording includes 366 cows (123 Montbéliarde cows {--} I, 109 Czech Spotted cows {--} C and 134 50 % Montbéliarde and 50 % Czech Spotted crossbreds - CI), which finished their lactation from 1.10.2004 until 13.7.2007. The fertility was assessed by reproduction indexes as first calving age, insemination period, meantime; and milk yield by utility indexes as quantity of milk; fat, protein, lactose contain, lactation persistence, length of lactation. There have been found important differences in reproduction indexes such as length of service period, length of meantime and first calving age. On I cows there was the biggest length of service period (124.5 days), even the length of meantime (414.6 days), on the contrary the CI group has reached the lowest numbers (99.7 and 377.2 days). Montbéliarde cows reached 844.7 days age when first calving, that is 52.6 days earlier than C group. Czech Spotted cows produced in average 7672.7 kg of milk per lactation when cross breeds produced 7677.1 kg and Montbéliarde cows produced 8708.5 kg of milk. Differences were statistically very significant. Montbéliarde cows had demonstrably lower (P $łeq$ 0,001) fat contain in milk (4.06 % in compare with 4.23 % by C and 4.21 % by CI). There wasn{\crq}t statistically significant difference recorded in protein contain among breeds by numbers 3.46 for C; 3.48 for CI and 3.46 for I. Because of the high milk yield of Montbéliarde cows, there was reached the highest production of fat (352.3 kg) even proteins (300.8 kg) in this breed. The highest index of lactation persistence was documented in Montbéliarde cows in level 89,9 in compare with the lowest reached level 85.4 (P $łeq$ 0.001) in the group of Czech Spotted cows.
|
|
| |
|
| |
|
|
Analysis of reproduction roadsings sows
KORČÁKOVÁ, Jana
The aim of the bachelor thesis was to analyse the reproduction qualities of sows, that means the fertility and the lactation performance and the influences that effect them. This work also describes the maternal pig breeds where are monitored the reproduction qualities. The breed classification, the number of litters, the farrowing interval, the technology of stabling and the nutrition are participant in the reproduction. This work considers all these factors and clears them up.
|
|
|
Influence of breeding technology on the utility characteristics of the dairy cows
TRCH, Jan
The aim of this bachelor thesis was to evaluate fertility and milk performance due to technology used in new dairy cow housing. Monitoring was carried out between 2008 and 2009 in the farm Agrospol, which is situated in Malý Bor. All cows were kept in the same technological conditions. Monitoring was carrieed out in 110 dairy cows of Czech spotted (C), Holstein (R) and crossbreeds of these cows (CxR).There were measured indicators of fertility (insemination interval, service period, interim and age at first calving) and indicators of milk production (lactation length, milk quantity, fat content, protein and lactose content).There was found a statistically significant difference in the length of insemination interval in the reproductive indicators. Cows "C" had the lowest numbers in all reproductive indicators: insemination of 72 days, service period 101 days, 386 days of interim and age at first calving 779 days (25/19). Holstein cows reached a length of service period of 133 days which is about 32 days higher than the value of dairy cows "C". Holstein dairy cows in lactation produced at average 9913.6 kg of the milk, cows "CxR" 9839.3 kg and Czech spotted cows 9142.3 kg. There was not found statistically significant difference between these values. The best results in milk production per standard lactation reached cows "C" (9528.7 kg) in the second lactation, cows "CxR" (9751.9 kg) as same as cows "R" (10 695 kg) in the third and following lactations. The highest average fat content of dairy cows had "CxR" with a value of 4.71 %; the fat content was 4.61 % by "R" cows and 4.56 % by "C" cows. There was not found a significant difference at average protein content of dairy cows. Cows "C" reached 3.36 %, cows "CxR" 3.38% and cows "R" 3.35 % of the protein.
|
|
|
Analysis of commercial properties in dairy herds.
POTUŽÁKOVÁ, Jitka
The aim of the thesis was to evaluate fertility and milk performance in dairy cows, predominantly Holstein cattle, due to technology used in the view of welfare animals. Monitoring was carried out on the farm AGROSPOL, Malý Bor a.s. from 2008 to 2010. Dairy cows were kept in the same technological conditions, with the same level of nutrition and treatment. Monitoring included 662 dairy cows of Bohemian Spotted Cattle (C), Holstein cattle (H1) and high proportion of crossbreeds of these cows (H2). Fertility was evaluated due to indicators of reproduction (first calving age, insemination interval, service period, interim) and in terms of milk performance there were measured indicators of milk production (lactation length, milk production, protein production, fat content, protein and lactose content). Statistically, significant differences were found in the length of insemination interval, service period length (P ? 0,01) and interim length (P ? 0,05). Dairy cows (C) reached markedly shorter period of the following indicators: insemination interval 70,6 days, service period 98,6 days and interim 395,9 days. There was not found a significant difference in length of these indicators among the groups of Holstein dairy cows. Lactation order did not influence the length of reproduction indicators. The influence of bull-father in terms of reproductive indicators was not proved. Comparison of milk production and protein production in dairy cows due to lactation order proved that cows in the first lactation had a lower yield of milk (8737,1 kg) than dairy cows in the following lactations (9669,3 ? 10209,3 kg), as well as protein production (kg). Dairy cows ?C? gave 9115,3 kg of milk in 305 days, dairy cows ?H1? 9664,1 kg and cows ?H2? 9511,0 kg of milk. These differences were not evaluated as statistically conclusive, as well as differences in content of milk elements among genotypes in fixed lactation norms. The influence of the individuality of a bull in milk and protein production was not proved. Significant differences were found in percentage of fat content (P ? 0,05), protein and lactose content (P ? 0,01) in milk of cow-daughters after particular bulls.
|
|
|
The comparison of two breed of sheeps reared in the same area
RAABOVÁ, Alena
The comparison of two breed of sheeps reared in the same area. The aim of the master thesis was the evaluation of the level of the reproductive and the productive traits by the two breeds of sheeps in the area of Novohradské Hory Mts. The examination was conducted from 2006 to 2009. The farm recording and the author´s personal observation were both used for the evaluation. The following traits were recorded: insemination, fertility, intensity, lamb rearing, infertility, mortality. The production traits recorded were the weight of the wool and weight gain in 100 days after the birth. The following results (arithmetic means) were obtained: the rate of insemination by the Valaška breed was 94.3 %, fertility 168.4 %, intensity 158.5 % and the lamb rearing 150.2 %. The rate of infertility was 5.9 % and rate of mortality 5.1 %. The average wool weight was 2.21 kg and the weight gain 175.8 g day-1. By the Merinolandschaf breed, the rate of insemination was 87 %, fertility 134.4 %, intensity 116.1 % and the lamb rearing 101.5 %. The rate of infertility was 13.2 % and rate of mortality 8.8 %. The average wool weight was 4.2 kg and the weight gain 236.9 g day-1. The herd A revealed better results as regards the reproduction traits while the herd B revealed better results concerning the production traits. The significant differences between the examined herd of Valaška sheeps and the Czech population were found in the fertility, intensity and the lamb rearing (T test). By the Merinolandschaf herd, the significant differences from the Czech population were found by the weight gains (T test). The significant differences between the two breeds were found in the fertility, intensity and lamb rearing (T test).
|
|
|
Evaluation of reproductive performance in selected breeding of sheep
BRÁZDOVÁ, Veronika
The aim of this thesis was to evaluate the reproductive performance over the period from 2007 to 2010 in selected Suffolk sheep. The evaluation was carried out on the basis of records kept in the selected breeding sheep at Agris Markvarec s r.o. and on own observations. During the reporting period was evaluated 1115 ewes, which were monitored the following parameters such as fertilization, fertility, intensity, rearing of lambs, infertility, ewes lambing, percentage of sheep abortions, stillborn lambs, mortality, percentage of breeding lambs and percentages of sheep by percent occurrence of the cast. There was also observed age structure of the ewes, the dependence of age on fertility of ewes and the effect of father mother on her fertility. In the observed breeding was found the following results, which are presented as an average over the reporting period, so the percentage of fertilization is 91.2%, fertility 145.2% and rearing 81.3%. The percentage of idleness of sheep is 8.8%, which directly affected the percentage of the intensity, which is 118.3% and the lambing percentage, which ranks lower value 81.2%. A relatively high percentage was achieved in postnatal mortality, which is 11.4%. Percentage of sheep abortions in the average is 5.4% and the percentage of stillborn lambs is 4.9%. Breeding lambs 92.3%. The effect of age of ewes on fertility was confirmed by F - test for the significance level of p ? 0,05. Subsequent testing has been demonstrated median significant differences between groups of ewes aged 2 and 3 years and between age groups 3 and 5 years. On the same level of significance was also demonstrated effects of father mother on fertility of mother and on the basis of the results was found that the lowest average fertility rates in the ewes, their father is out of line Yog (110%) and conversely the highest fertility rate (170,8%) is achieved for mothers whose father is out of line Harald. Further testing, which was focused on the effect of age of breeding ewes and breeding year in terms of the father´s line on the mother's fertility wasn´t demonstrated.
|
|
|
The use of milking robots for milking Holstein cows
BARTŮŇKOVÁ, Ilona
Abstract Robotics technology has been already spread in agriculture especially into livestock production mainly in milking process. The aim of this thesis was comparison of the production results of Holstein cows housed in different conditions. The first group of monitored cows was housed in a loos housing with free strawed stalls and milked at milking parlour. The other group was housed in a reconstructed loos housing with free rubber mattressed stalls and milked with milking robots. There were analysed reproduction parameters and milk efficiency and compared technologic and labour intensity. Data were collected and evaluated in 2010. As reproductive factors in a group of selected cows (31 animals respectively 34 animals) were analysed the length of service period and length of the interval between calving. Service period of cows milked in the milking parlour was for the first lactation cows 94.8 days and for the second lactation 100.3 days, the average length of the interval between calving was 374.6 days. By the second group of cows milked by robots were the length of service period 88.3 days for first lactation cows and for second lactation cows 112.5 days, the interval between calving 373.2 days. By analysing milk production were found out statistically significant differences (P ? 0.001) in amount of produced milk. Both lactation cows milked by milking robots reached higher yield. On the first lactation was increases of 2169.7 kg of milk with an average yield 9130.2 kg of milk. The second lactation cows increased milk yield to 10,555.2 kg of milk, which was 1998.6 kg of milk more in comparison with the amount of milk produced by cows milked at the parlour. In the fat and protein content weren?t found out statistically significant differences between groups. After robot milking was introduced the number of cows per one employee were increase from 32.9 pc to 41.1 pc. The average number of milking per head and the day increased from 2 to 2.3 (some cows are milked 6 times in 24 hours, but it depends on the cow milk production and part of the lactation).
|
guest ::
