scholarly journals The influence of optimal diet recipes including complex drug Devivit-Selenium on production traits in young simmental cattle under the conditions of the Carpathian region of Bukovina

2020 ◽  
pp. 220-225
Author(s):  
T.N. Prylipko ◽  
O.P. Shulko
Keyword(s):  
Production Traits ◽  
Optimal Diet ◽  
Carpathian Region ◽  
Simmental Cattle ◽  
Complex Drug

EFFICIENCY AND COMPARISON OF THE TEST-DAY MODEL AND BLUP METHOD MODIFICATIONS FOR ASSESSING BULLS BREEDING VALUE IN SIMMENTAL CATTLE BREED

2020 ◽  
Author(s):  
А.И. МАМОНТОВА ◽  
С.А. НИКИТИН ◽  
Е.Е. МЕЛЬНИКОВА ◽  
А.А. СЕРМЯГИН
Keyword(s):  
Animal Model ◽  
Milk Yield ◽  
Cattle Breed ◽  
Breeding Value ◽  
Am1 Method ◽  
Production Traits ◽  
Genetic Trend ◽  
Sire Model ◽  
The Russian Federation ◽  
Simmental Cattle

Целью проведенных исследований являлась отработка и адаптация применения методик BLUP AM (Animal Model — модель животного) и TDM (Test-Day Model — модель тестового дня) для прогнозирования племенной ценности быков-производителей и оценки селекционно-генетических параметров на популяции скота симментальской породы четырех регионов РФ. Проведен сравнительный анализ указанных методов с более ранним методом BLUP SM (Sire Model — модель отца). Рассчитана племенная ценность быков и коров симментальской породы по признакам молочной продуктивности: удой за 305 дней, выход молочного жира, выход молочного белка. Анализ полученных средних значений достоверности оценок быков-производителей, рассчитанных на основе сопоставляемых методов, свидетельствует, что достоверность для признака «удой за 305 дней» при переходе от метода SM1 к AM1 увеличивается на 2,4%, а при переходе от SM1 к TDM1 — на 7,8%. Даны варианты генетического тренда по удою с использованием различных уравнений моделей расчета племенной ценности. На основании полученных данных можно сделать вывод о том, что модель тестового дня позволяет не только повысить точность оценок быков, но и более рельефно выявить их ранги, а также несколько уменьшить срок получения достоверных оценок производителей по качеству потомства по продуктивным признакам. The purpose of this research was to develop and adapt the application of BLUP AM (Animal Model) and TDM (Test-Day Model) methods for predicting the sires breeding value and evaluating genetic parameters for Simmental cattle population in four regions of the Russian Federation. A comparative analysis of these methods with the earlier BLUP SM (Sire Model) method is performed. The breeding value for sires and cows of Simmental breed was calculated by milk production traits: milk yield for 305 days; milk fatyield; milk proteinyield. The sires reliability of average breeding value calculated by different methods reveal that milk yield for 305 days when switching from the SM1 to AM1 method increases by 2.4%, and when switching from SM1 to TDM1 — by 7.8%.The variants of the genetic trend for milk yield are given using various equations of BLUP and TDM. Based on the obtained data, it can be concluded that the Test-Day model allows increasing the accuracy of bull’s evaluation and also more clearly identifying their ranks, as well as slightly reducing the time for obtaining reliable estimates of bulls by offspring for production traits.

scholarly journals To the question of evaluating the efficiency of linear breeding in Simmental cattle breed different origin

2020 ◽  
Vol 197 (6) ◽  
pp. 49-57
Author(s):  
L. Ignat'eva ◽  
A. Konte ◽  
A. Sermyagin
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Russian Federation ◽  
Mixed Model ◽  
Breeding Value ◽  
Production Traits ◽  
Fat Percentage ◽  
Foreign Origin ◽  
Simmental Cattle ◽  
The Impact

Abstract. The purpose of the research – to study the impact of related foreign pedigree resources on the Russian population of Simmental cattle. Research Methods. Studies carried out on cows of Simmental breed of different linear origin and genotypes in five regions of Russian Federation: Voronezh, Oryol, Kursk, Belgorod regions and Altayskiy krai, the total number was 35147 cows. EBV estimates were calculated through RENUMF 90, REMLF 90 and BLUPF 90 programs. Evaluation of the components of the variants of genetic and paratypical nature was carried out using the method restricted maximum likelihood – REML. Results. It is established that the largest share for animals foreign origin are 60.7 %, including German-Austrian bloodlines 46.6 % and Holsteins – 14.1 %. 39.3 % of animals are the Russian origin, which 13.5 % representatives of German-Austrian bloodlines, 17.8 % are Holsteins and 8.0 % are from domestic (Russian) bloodlines. In the general population of Simmental breed, the best productivity was shown by cows of German-Austrian bloodlines at the level of 5351 kg of milk with fat percentage 4.00 % and protein percentage 3.19 %. Representatives of German-Austrian bloodlines origin for milk yield showed the estimated breeding value (EBV) for Simmental bulls in the common population by +9.2 kg and fat percentage by +0.012 %. The negative EBV values were obtained for Russian bloodlines by –22.8 kg, and Holstein bloodlines took an intermediate position among all lines (+2.3 kg). The first calving cows, which were in the herd at the time of research, the best milk production traits were found in individuals of foreign origin, both for Holstein (6096 kg of milk with a fat content of 3.96 % and protein 3.23 %), and German-Austrian bloodlines (milk yield 5763 kg, fat 4.04 % and protein 3.19 %), with high estimates of breeding value for milk yield +33.3 kg and +15.2 kg, respectively. Low values of milk productivity among all evaluated animals were observed for animals of Russian bloodlines by 4469 kg milk 3.87 % fat and 3.20 % protein in milk. The first calving cows of Russian origin in foreign bloodlines origin exceeded their peers in Russian Simmental bloodlines in milk production by +608 kg of milk and +0.15 % fat (signed to German-Austrian bloodlines) and +924 kg and +0.06 % fat (signed to Holstein bloodlines). The average values of EBV in these lines, although had low values by –5.6 kg milk for Holstein and by +2.7 kg milk for German-Austrian bloodlines, but was significantly higher than for Russian lines by –12.7 kg milk. Scientific novelty. For the first time, scientific research aimed at improving the system of prediction to breeding abilities of bulls on dairy productivity of daughters based on optimization structure of equations of the mixed model (BLUP, the best linear unbiased prediction) has been carried out for the population Simmental cattle of Russian Federation.

ГЕНЕТИЧЕСКАЯ ЦЕННОСТЬ СИММЕНТАЛЬСКИХ БЫКОВ-ПРОИЗВОДИТЕЛЕЙ ЗАРУБЕЖНОЙ СЕЛЕКЦИИ ПРИ ПЕРЕОЦЕНКЕ НА БАЗЕ ПЛЕМЕННЫХ РЕСУРСОВ РОССИИ

2019 ◽  
pp. 13-18
Author(s):  
A.A. SERMYAGIN ◽  
L.P. IGNATIEVA ◽  
S.A. SHEMETYUK ◽  
S.N. KHARITONOV ◽  
I. SOELKNER ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Breeding Value ◽  
Production Traits ◽  
Milk Production Traits ◽  
Fat Percentage ◽  
Genetic Breeding ◽  
Additional Information ◽  
Livestock Population ◽  
The Russian Federation ◽  
Simmental Cattle

Проведены сравнительные исследования по переоценке быковпроизводителей симментальской породы импортного происхождения на примере российской региональной популяции скота. Дана краткая характеристика состояния развития генетических ресурсов на породном уровне в Австрии. Проведено сопоставление селекционногенетических параметров в сравнении с РФ. Оценка племенной ценности производителей отечественной (n843) и зарубежной селекции (n641) проводилась на основе методологии BLUP, которая далее сравнивалась с официальной оценкой быков, полученной аналогичным методом по результатам 2018 года в Австрии. Наследуемость показателей молочной продуктивности колебалась от 0,182 до 0,252. Анализ результатов взаимосвязи между фенотипическими показателями дочерейпервотелок, а также генетическими оценками быковпроизводителей показал низкую повторяемость от 0,145 по фенотипу до 0,216 по генотипу для удоя, 0,047 и 0,103 для процента жира, 0,043 и 0,109 для процента белка, соответственно, по изучаемой выборке. С увеличением числа потомков и точности племенной ценности повторяемость EBV быков, оцененных в РФ и Австрии, возрастала от 0,0950,181 до 0,7470,918, соответственно. Определены условия для прохождения процедуры проверки по качеству потомства импортированных быков симментальской породы (семени) для их переоценки на территории РФ: должны быть получены не менее 80 дочерей из 34 хозяйств EBV страныпроисхождения по ряду хозяйственно полезных признаков может бытьиспользовано в качестве дополнительной информации точность оценки, полученной на поголовье в РФ, должна быть не ниже 70, а переоценка племенной ценности максимально приближена к методике страны выведения особи, то есть к BLUP процедуре.Comparative studies on the reevaluation in Simmental cattle sires of foreign origin were carried out using the Russian regional livestock population. A brief description of genetic resources development of Simmental cattle in Austria is given. A comparison of genetic parameters with the Russian cattle population is carried out. Assessment of breeding value in domestic (n843) and foreign breeding sires populations (n641) was carried out by BLUP methodology which was then compared with the official bulls evaluation obtained using a similar method according to the results of 2018 in Austria. The heritability of milk production traits ranged from 0.182 to 0.252. The correlation analysis between phenotypic features of firstparity daughters and genetic breeding values of sires showed low repeatability from 0.145 for the phenotype to 0.216 for the genotype by milk yield, 0.047 and 0.103 for the fat percentage, 0.043 and 0.109 for the protein percentage, respectively, for the studied dataset. With an increase the number of offspring and the accuracy of breeding value the repeatability of the bulls EBV evaluated in the Russian Federation and Austria ranged from 0.0950.181 to 0.7470.918, respectively. The conditions for passing the verification procedure of imported Simmental bulls (semen) in Russia for reevaluation are defined: at least 80 daughters from 34 farms must be obtained EBV of the country origin for economically useful traits can be used as additional information the accuracy of the EBV based on Russian population should not be lower than 70, and the reassessment of breeding value should be as close as possible to the BLUP methodology of the country that animal was bred.

scholarly journals A variance component estimation approach to infer associations between Mendelian polledness and quantitative production and female fertility traits in German Simmental cattle

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Carsten Scheper ◽  
Reiner Emmerling ◽  
Kay-Uwe Götz ◽  
Sven König
Keyword(s):  
Variance Component ◽  
Female Fertility ◽  
Variance Component Estimation ◽  
Production Traits ◽  
Breeding Values ◽  
Breeding Goal ◽  
Component Estimation ◽  
Simmental Cattle ◽  
Fertility Traits ◽  
Qtl Effects

Abstract Background Managing beneficial Mendelian characteristics in dairy cattle breeding programs implies that the correlated genetic effects are considered to avoid possible adverse effects in selection processes. The Mendelian trait polledness in cattle is traditionally associated with the belief that the polled locus has unfavorable effects on breeding goal traits. This may be due to the inferior breeding values of former polled bulls and cows in cattle breeds, such as German Simmental, or to pleiotropic or linkage effects of the polled locus. Methods We focused on a variance component estimation approach that uses a marker-based numerator relationship matrix reflecting gametic relationships at the polled locus to test for direct pleiotropic or linked quantitative trait loci (QTL) effects of the polled locus on relevant traits. We applied the approach to performance, health, and female fertility traits in German Simmental cattle. Results Our results showed no evidence for any pleiotropic QTL effects of the polled locus on test-day production traits milk yield and fat percentage, on the mastitis indicator ‘somatic cell score’, and on several female fertility traits, i.e. 56 days non return rate, days open and days to first service. We detected a significant and unfavorable QTL effect accounting for 6.6% of the genetic variance for protein percentage only. Conclusions Pleiotropy does not explain the lower breeding values and phenotypic inferiority of polled German Simmental sires and cows relative to the horned population in the breed. Thus, intensified selection in the polled population will contribute to increased selection response in breeding goal traits and genetic merit and will narrow the deficit in breeding values for production traits.

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

2006 ◽  
Vol 22 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
Milan Petrovic ◽  
Ljiljana Sretenovic ◽  
Vlada Pantelic ◽  
Stevica Aleksic ◽  
Branislav Miscevic ◽  
...  
Keyword(s):  
Milk Fat ◽  
Genetic Improvement ◽  
Mixed Model ◽  
Breeding Value ◽  
Production Traits ◽  
Cattle Population ◽  
Method Of Least Squares ◽  
General Average ◽  
Simmental Cattle ◽  
Calving Season

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).

scholarly journals Pathway-Based Genome-Wide Association Studies for Two Meat Production Traits in Simmental Cattle

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Huizhong Fan ◽  
Yang Wu ◽  
Xiaojing Zhou ◽  
Jiangwei Xia ◽  
Wengang Zhang ◽  
...  
Keyword(s):  
Association Studies ◽  
Genome Wide Association ◽  
Meat Production ◽  
Genome Wide Association Studies ◽  
Production Traits ◽  
Genome Wide ◽  
Simmental Cattle

Effect of Breed and Some Non - Genetic Factors on Milk Production and Some Proportions of Its Chemical Components in Two Breeds of Local Sheep

2020 ◽  
Vol 10 (1) ◽  
pp. 227-231
Author(s):  
Rahman Hussein AL-Qasimi ◽  
Shatha Mohammed Abbas ◽  
Allawi L.D. AL-Khauzai
Keyword(s):  
Milk Production ◽  
Genetic Factors ◽  
Chemical Components ◽  
Lactation Period ◽  
Production Traits ◽  
Milk Production Traits ◽  
Fat Percentage ◽  
Awassi Sheep ◽  
Total Milk ◽  
Milk Components

The study was carried out on 19 ewes of local Awassi sheep and 12ewes local Arabi sheep in the Al-kafeel sheep station Karbala, to determine the effect of breed and some non-genetic factors such as (sex of the lamb, type of birth, age and weight of ewes at birth) on daily and total milk production and lactation period and some of milk components (fat, protein and lactose). The results showed that a significant effect (P <0.05) of the breed on milk production traits where Awassi sheep recorded the highest mean (0.91 kg , 101.63 kg , 104.86 day) compared to the Arabi sheep she was means (0.77 kg , 88.15 kg , 99.15 day) respectively. As well as in proportions of milk components with mean( 5.1 , 4.90 , 5.51) % respectively compared to the Arabi sheep (4.70 . 4.20 . 4.89) ewes with male lambs also exceeded superior ewes with female lambs in daily and total milk production and the lactation period the sex of the lamb did not affect the proportions of milk components the weight of the ewes had a significant effect (P <0.05) in milk production attributes with superior weight of ewes on lower ewes and did not affect the proportions of milk ingredients except for lactose. The type of birth and the age of the ewes did not have a significant effect in all the studied traits except for the superiority (P<0.05) of young ewes on age ewes in the fat percentage of milk.

Beetles of the family Cryptophagidae (Coleoptera) in the collection of Zoological Museum of Taras Shevchenko National University of Kyiv

2019 ◽  
Vol 17 (2) ◽  
pp. 10-24 ◽  
Author(s):  
K. Ocheretna
Keyword(s):  
Species Identification ◽  
Broad Sense ◽  
Zoological Museum ◽  
World War ◽  
Identification Number ◽  
Comprehensive List ◽  
Carpathian Region ◽  
The Family ◽  
National University ◽  
Collection Sites

The Cryptophagidae collection (Coleoptera: Cucujoidea) deposited at the Zoological Museum of the Taras Shevchenko National University of Kyiv (ZMKU) is described. The main authors of the collection are well-known researchers from the 1910–1930s, Orest Marcu and Karl Penecke. This is the largest collection of cryptophagids among the natural museums of Ukraine containing 304 specimens belonging to 85 species of 13 genera. In addition, 15 specimens of 5 species belonging to the families Erotylidae, Biphyllidae and Languriidae were among Cryptophagidae specimens. The collection, according to information available in the ZMKU, came to the museum not earlier than 1947 as the indemnity for the results of the II World War, most likely from Chernivtsi, where Marcu and Penecke worked. The vast majority of specimens is collected in the territory of modern Romania and Ukraine, and many specimens came from Chernivtsi. A table with an overview of all key details of the specimens is given, in which there are 6 fields: the name of the species on the label, details on the species identification, number of specimens, collection locality with the name of collector and remarks on the specimen, in particular, the instructions for decoding collection sites from the original labels. Annotations are made on the amount of the collection and the most important specimens and re-identification for each of the 13 genera. Some specimens are lost, probably during numerous collection migrations. In particular, some species (Cryptophagus simplex, C. lapidicola, C. nitidulus, Caenoscelis subdeplanata, Atomaria grandicollis, A. peltata, etc.) are represented in the collection only by the labels. The collection is important for the analysis of the composition of the fauna of the Carpathian region in the broad sense, since some species are encountered in the collection rarely; therefore it is important to clarify their locations to form the most comprehensive list of species of the Cryptophagids in the region. Several species of the family were included on the actual list of the fauna of the region on the basis of the study of this collection, in particular: Atomaria linearis, A. analis, A. apicalis, A. gravidula, Cryptophagus fasciatus, C. setulosus, etc.

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