scholarly journals Influence of selected factors on the content of somatic cells in the milk of Carpathian goats

2018 ◽  
Vol 74 (8) ◽  
pp. 544-547
Author(s):  
ALDONA KAWĘCKA ◽  
IWONA RADKOWSKA ◽  
JACEK SIKORA
Keyword(s):  
Genetic Resources ◽  
Milk Yield ◽  
Somatic Cells ◽  
Goat Milk ◽  
High Variability ◽  
Goat Breed ◽  
Genetic Resources Conservation ◽  
Conservation Program ◽  
Milk Samples ◽  
Resources Conservation

The aim of the study was to analyze changes in the content of somatic cells (SCC) in the milk of Carpathian goats with regards to the month of lactation, milk yield and goat age. The research was carried out on a farm in the Podkarpacie region in which Carpathian goats are kept. They are a native goat breed, covered by the genetic resources conservation program. Somatic cells were determined in goat milk samples once a month during routine milk control. The lowest value was recorded at the beginning of lactation in April (719 × 103 · cm–3); it grew in subsequent months, gradually reaching the highest level in October (7311 × 103 · cm–3). There was no effect of goat age and milk yield on the size of the tested parameter. In conclusion, it should be stated that the milk of the Carpathian goats was characterized by a high content of somatic cells and high variability during lactation..

scholarly journals Changes in Milk Yield and Quality During Lactation in Polish Red and White-Backed Cows Included in the Genetic Resources Conservation Programme in Comparison with the Simmental Breed

2016 ◽  
Vol 16 (3) ◽  
pp. 871-886 ◽  
Author(s):  
Zygmunt Litwińczuk ◽  
Joanna Barłowska ◽  
Alicja Matwijczuk ◽  
Jan Słomiany
Keyword(s):  
Phase I ◽  
Genetic Resources ◽  
Milk Yield ◽  
Dry Matter ◽  
Reference Group ◽  
Low Input ◽  
Milk Samples ◽  
Fat Globules ◽  
Yield And Quality ◽  
Resources Conservation

AbstractMilk yield and quality was assessed in cows raised on low-input farms (traditional feeding), i.e. two breeds covered by genetic resources conservation (RP and BG) and the SM breed. The reference group was PHF HO cows from an intensive milk production system (PMR feeding). A total of 1,212 milk samples were collected from three periods of lactation: I (up to 120 days), II (121–200) and II (over 200). The milk was analysed for content of fat, protein, casein, lactose, dry matter, non-fat dry matter and the protein-to-fat ratio, coagulation time, heat stability and the percentage of fat globules in different size ranges. Fatty acid profile and cholesterol content were determined in a representative number of 180 milk samples. Daily yield in the native breeds in the third phase of lactation was 9.6 and 8.7 kg, which was slightly over 55% of their yield in phase I, compared to 66% in the SM and 73.4% in the reference group (PHF HO). The increase in fat and protein (including casein) in the milk during lactation was much higher in the native breeds, so its energy value in phase II of lactation was 11% higher in the BG cows and 9% higher in RP, but only 4% higher in the SM with regard to phase I of lactation. The milk fat from the Polish Red cows had the highest proportion of PUFA in each phase of lactation, including CLA, and the highest PUFA/SFA ratio. Over the course of lactation the percentage of large fat globules in the milk decreased, particularly in the native breeds (P≤0.01), while in the SM the differences were much smaller and statistically insignificant. Lactation persistency in both native breeds raised in a low-input system was worse than in the SM, but the increase in basic components during lactation was markedly higher, while that of cholesterol was lower.

Global Status of Sorghum Genetic Resources Conservation

2020 ◽  
pp. 43-64
Author(s):  
Jeff Dahlberg ◽  
Melanie Harrison ◽  
Hari D. Upadhyaya ◽  
M. Elangovan ◽  
S. Pandey ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Genetic Resources Conservation ◽  
Global Status ◽  
Resources Conservation

scholarly journals Content of Macro- and Microelements in the Meat of Young Bulls of Three Native Breeds (Polish Red, White-Backed and Polish Black-and-White) in Comparison with Simmental and Polish Holstein-Friesian

2015 ◽  
Vol 15 (4) ◽  
pp. 977-985 ◽  
Author(s):  
Zygmunt Litwińczuk ◽  
Piotr Domaradzki ◽  
Mariusz Florek ◽  
Paweł Żółkiewski ◽  
Agnieszka Staszowska
Keyword(s):  
Genetic Resources ◽  
Genetic Resources Conservation ◽  
Permanent Grassland ◽  
Black And White ◽  
Conservation Programme ◽  
Holstein Friesian ◽  
Longissimus Lumborum ◽  
Resources Conservation ◽  
Intensive System

Abstract The material for the study consisted of 80 samples taken from the longissimus lumborum (LL) and semitendinosus (ST) muscles of young bulls of five breeds (8 samples of each muscle per breed), including three native breeds included in the genetic resources conservation programme, i.e. Polish Red, White-Backed and Polish Black-and-White, which together with the Simmental and Polish Holstein-Friesian breeds. The content of the elements (K, Na, Mg, Ca, Zn, Fe, Mn, and Cu) analysed in the meat of the young bulls (fattened in a semi-intensive system on fodder from permanent grassland) was found to depend (in varying degrees) on the breed of cattle. The greatest differences (P<0.01 and P<0.05) were noted between the Polish Holstein-Friesians (PHF) and the remaining breeds, mainly in the content of Mg, Ca, Zn and Mn. The results obtained in the four other breeds for most of the macro- and microelements were more uniform, with the highest content noted in the muscles of the young bulls of the native breeds.

ANIMAL GENETIC RESOURCES CONSERVATION PROGRAMME IN BRAZIL

1992 ◽  
Vol 10 ◽  
pp. 7-26
Author(s):  
A. da Silva Mariante ◽  
A. R. de Bem
Keyword(s):  
Genetic Resources ◽  
Agricultural Research ◽  
Research Programme ◽  
Research Centre ◽  
Plant Resources ◽  
Genetic Resources Conservation ◽  
Animal Genetic Resources ◽  
Research Corporation ◽  
National Research Programme ◽  
Resources Conservation

SUMMARYThe Brazilian Agricultural Research Corporation (EMBRAPA), through the National Research Centre for Genetic Resources and Biotechnology (CENARGEN), created the National Research Programme for Genetic Resources in 1974, but at that time only plant resources were included. A few years ago, the need for conservation of animal genetic resources in Brazil became clear, and the lack of necessary documentation and evaluation was recognized. Finally, in 1981, CENARGEN decided to include animal genetic resources in its Research Programme. In the case ofcattle, actions are being taken to save the “Criollo” before it is too late as it is rapidly disappearing by indiscriminate crossbreeding. There is already considerable information on the “'local” livestock breeds, strains and varieties in Brazil. A number of these breeds, strains or varieties that are in danger of extinction have been identified, and are being documented and specifically evaluated, particularly to determine if they possess any unique or special inherited characteristic that would warrant their conservation. Until such evaluation is completed, steps are being taken to ensure preservation of these populations. More recently, the programme ineluded other species such as: buffaloes, pigs, sheep, goats, horses and donkeys.

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