scholarly journals Application of the technology of improvement of body development traits as a basis for milk production in Simmental cattle population in Serbia

2006 ◽  
Vol 22 (3-4) ◽  
pp. 33-43
Author(s):  
V. Bogdanovic ◽  
Radica Djedovic ◽  
P. Perisic ◽  
M.M. Petrovic
Keyword(s):  
Genetic Variability ◽  
Milk Production ◽  
Body Length ◽  
Genetic Improvement ◽  
Cattle Population ◽  
Body Frame ◽  
Body Development ◽  
Simmental Cattle ◽  
Heritability Estimates

To analyze variability and heritability of body development traits and possibilities for their improvement data of 371 performance tested Simmental bulls were used. Average test-on (120 days of age) and test-off (365 days of age) height at withers (HW), circumference of chest (Cir), depth of chest (DC), width of round (WR), width of hip (WH) and body length (BL) were 99.88?3.49 and 126.00?2.65 cm, 127.42?6.14 and 184.76?5.95 cm, 42.55?2.25 and 60.90?2.15 cm, 32.56?3.01 and 47.63?2.67 cm, 30.26?2.12 and 44.14?1.93, 106.69?5.99 and 147.57?4.65 cm, respectively. Average values for test-on and test-off index of body frame (IBF), index of chest depth (ICD), index of body compactness (ICBL), and index of massiveness (IM) were 106.8?4.44 and 117.13?3.11%, 42.61?1.90 and 48.34?1.45%, 119.59?5.19 and 125.27?4.26%, 127.58?4.86 and 146.65?4.30%, respectively. Heritability estimates for test-off height at withers, circumference of chest, depth of chest and body length were 0.43, 0.30, 0.33 and 0.29. Possibilities for improvement of body development traits were done according to their phenotypic and genetic variability. Obtained results confirm that exist enough variability in major body development traits in Simmental bulls which can be utilized not only for genetic improvement of milk production in their daughter, but also for improvement of overall body traits in Simmental population in Serbia.

scholarly journals Correlation between body measurements and milk production of goats in different lactations

2011 ◽  
Vol 27 (2) ◽  
pp. 217-225 ◽  
Author(s):  
M. Zujovic ◽  
N. Memisi ◽  
V. Bogdanovic ◽  
Z. Tomic
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Milk Production ◽  
Body Length ◽  
Mountain Range ◽  
Lactation Period ◽  
Body Measurements ◽  
Goat Breed ◽  
Correlation Dependence ◽  
Body Development

This paper presents the results of the variability and correlation of body measurements and milk production of domestic Balkan goat breed that is reared in the mountain range Sharplanina, depending on the lactation. Studied animals were monitored and lactation, or order of kidding (I, II, III and IV and the next lactation together). Control of milk production, included a total of 290 goats in different lactations (first-81 animals, the second-69 heads, 71 heads third-and fourth and following along latkacije-69 heads). In order to determine the measure of body development in adult goats, one takes values for height at withers, body length, chest depth, chest width, the width of the cross and body weight. The variability of the analyzed characteristics is presented descriptive parameters and the effect of lactation is determined by a factorial analysis of variance. The determined average values for milk production and measures of body development are located within those identified for this population of goats. During these tests showed statistically significant correlation dependence (P <0.05) between all studied variables, except when it comes to length lactation period and individual measures of body development. The correlation coefficient between length of lactation and established measures of body development. are low and reflect the existence uncorrelation dependence, and their values range from 0.08 to 0.11, while they were unjustified and statistically (P> 0.05).

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 Estimation of genealogical lines of cattle of the Kazakh white-headed breed

2021 ◽  
Vol 51 (1) ◽  
pp. 82-89
Author(s):  
V. A. Soloshenko ◽  
V. A. Pleshakov ◽  
B. O. Inerbaev ◽  
A. S. Durov ◽  
I. A. Khramtsova
Keyword(s):  
Genetic Variability ◽  
Milk Production ◽  
Body Length ◽  
Milk Yield ◽  
Live Weight ◽  
Low Level ◽  
Chest Girth ◽  
Degree Of Consolidation ◽  
Selection Parameters ◽  
High Degree

An assessment of economically useful traits and external conformation of the Kazakh whiteheaded cows of the main genealogical lines, bred in the farms of the Altai Territory, was carried out. For the analysis, indicators of economically useful traits and conformation of first-calf heifers and full-aged cows of the Kazakh white-headed breed were used: live weight, measurements, total score for conformation, milk production. It was established that first-calf heifers of Zamok 3035 line surpass their herdmates in chest girth, and heifers of Zadorny 1325 and Korol 13682 lines are superior in oblique body length. Cows of Peon 29 line are inferior to their peers in live weight. The best indicators in live weight were noted in full-aged cows of Zadorny 1325 line, in milk yield – in Korol 13682 line. In general, there were no significant differences in most animal traits between the lines assessed. Analysis of full-aged cows belonging to the lines of Zamok 3035, Korol 13682, Zadorny 1325 showed that they surpass their herdmates in live weight, the lines of Korol 13682 – in milk yield. The study of the coefficients of heritability showed a low level of influence of the genotype on the variability of the main traits. This fact may indicate a high degree of consolidation of the Kazakh white-headed breed. In the breeding work with this breed, it is necessary to make wider use of sires belonging to the lines of Zadorny 1325, Zamok 3035. Particular attention should be paid to the rotation of genealogical groups. It is recommended to use new unrelated animals from other regions to increase the genetic variability of traits in herds. In order to do this, selection should be carried out in accordance with the grading requirements and selection parameters calculated for a particular farm.

scholarly journals Phenotype variability and relations between basic parameters of morphological development in young Balkan donkeys

2014 ◽  
Vol 68 (3-4) ◽  
pp. 207-214
Author(s):  
Vladan Djermanovic ◽  
Sreten Mitrovic ◽  
Ruzica Trailovic ◽  
Dragisa Trailovic ◽  
Sergej Ivanov
Keyword(s):  
Body Weight ◽  
Selective Breeding ◽  
Genetic Resource ◽  
Morphological Characteristics ◽  
Morphometric Parameters ◽  
Morphological Development ◽  
Body Frame ◽  
Native Breed ◽  
Body Development ◽  
Basic Parameters

Balkan donkey is native breed of donkeys evolutively adapted to modest breeding conditions and different climatic systems including harsh and severe climate of Serbian mountains. Unfortunately, the purposes for breeding small donkeys have been lost during the 20th century so the population is regressing. There has been no selective breeding of the autochthonous donkeys in Serbia therefore the data on breed characteristics are recent and few. The monitoring of morphological characteristics of autochthonous Balkan donkey population in Serbia have been performed in aim to characterize the population and to define the importance of autochthonous donkeys as national genetic resource . The morphometric parameters evaluated i.e. height at withers (HWi) body length (BLe), thorax girth (TGi), cannon perimeter (CPe) and body weight (BW) in young Balkan donkeys bred in traditional conditions were used for establishment of the following body indexes: Index of Body Frame (IBF), Index of Body Compactness (BCI), Index of Conformation (CoI) and Dactyl-costal Index (DCI) reflecting body development and conformational relations in Balkan donkey population in Serbia.

scholarly journals GENOME-WIDE ASSOCIATION STUDY FOR MILK PRODUCTION AND REPRODUCTION TRAITS IN RUSSIAN HOLSTEIN CATTLE POPULATION

2016 ◽  
Vol 51 (2) ◽  
pp. 182-193 ◽  
Author(s):  
A.A. Sermyagin A.A. Sermyagin ◽  
◽  
E.A. Gladyr’ E.A. Gladyr’ ◽  
S.N. Kharitonov S.N. Kharitonov ◽  
A.N. Ermilov A.N. Ermilov ◽  
...  
Keyword(s):  
Association Study ◽  
Milk Production ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Holstein Cattle ◽  
Cattle Population ◽  
Genome Wide ◽  
Reproduction Traits

scholarly journals Genetic improvement and population structure of the Nelore breed in Northern Brazil

2010 ◽  
Vol 45 (10) ◽  
pp. 1109-1116 ◽  
Author(s):  
Carlos Henrique Mendes Malhado ◽  
Paulo Luiz Souza Carneiro ◽  
Ana Claudia Mendes Malhado ◽  
Raimundo Martins Filho ◽  
Riccardo Bozzi ◽  
...  
Keyword(s):  
Population Structure ◽  
Genetic Variability ◽  
Genetic Improvement ◽  
Selective Breeding ◽  
Growth Traits ◽  
Management Strategies ◽  
Pedigree Information ◽  
Effective Number ◽  
Northern Brazil ◽  
Nelore Cattle

The objective of this work was to evaluate the population structure and the genetic and phenotypic progress of Nelore cattle in Northern Brazil. Pedigree information concerning animals born between 1942 and 2006 were analyzed. Population structure was performed using the Endog program. Out of the 140,628 animals studied, 67.7, 14.52 and 3.18% had complete pedigree record of the first, second and third parental generation, respectively. Inbreeding and average relatedness coefficients were low: 0.2 and 0.13%, respectively. However, these parameters may have been underestimated, since information on pedigree was incomplete. The effective number of founders was 370 and the genetic contribution of 10, 50 and 448 most influent ancestors explained 13.2, 28 and 50% of the genetic variability in the population, respectively. The genetic variability for growth traits and population structure demonstrates high probability of increasing productivity through selective breeding. Moreover, management strategies to reduce the currently observed age at first calving and generation intervals are important for Nelore cattle genetic improvement.

HARIANA - AN INDIAN CATTLE BREED IN ITS NATIVE ECOLOGY

1996 ◽  
Vol 18 ◽  
pp. 49-57
Author(s):  
B. K. Joshi ◽  
M. S. Tantia ◽  
Neelam Gupta ◽  
S. C. Gupta ◽  
R. Sahai
Keyword(s):  
Milk Production ◽  
Genetic Improvement ◽  
Rural Households ◽  
Cattle Breed ◽  
North India ◽  
Animal Power ◽  
Performance Traits ◽  
Indian Cattle ◽  
Dairy Animal ◽  
Mechanized Agriculture

SUMMARYThe fast changing socio-economic levels of inhabitants, ecological profile and agricultural scenario in the native breeding.tract of Hariana cattle breed reveal several factors resulting in consistently a declining trend in the population as well as genetic deterioration in performance traits of the breed. The breed, once occupying pre eminent position in Indian farming throughout the entire rural households of North India for both draught power and milk production, isnow being gradually neglected and becoming economically non-remunerative because of intensive and more mechanized agriculture replacing draught animal power, shrinking grazing areas, over emphasis on crossbreeding with exotic cattle inheritance and emergence of buffalo as a commercial dairy animal. The authors emphasize the need to develop suitable strategies for planned genetic improvement and conservation programmes of the breed to resurrect it as an economical viable cattle breed for the posterity.

Genetic variability in time to germination of sugar-beet clusters

1971 ◽  
Vol 76 (1) ◽  
pp. 27-32 ◽  
Author(s):  
J. P. Battle ◽  
W. J. Whittington
Keyword(s):  
Genetic Variation ◽  
Genetic Variability ◽  
Sugar Beet ◽  
Maternal Effects ◽  
Diallel Cross ◽  
Wild Form ◽  
Maternal Parent ◽  
Germination Characteristics ◽  
Heritability Estimates

SUMMARYAn analysis of germination characteristics of progeny from a diallel cross between five sugar-beet plants showed that the genotype of the maternal parent controlled to a marked extent the behaviour of the progeny. This may be related to the presence in the fruits of inhibitory substances.Some evidence was found for genie and maternal interactions but these were always of less importance than the maternal effects. Heritability estimates from parent, off spring regression and analysis of half-sib family variances demonstrated that genetic variation for germination characteristics had not been eliminated during the improvement of sugar beet from the wild form.

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