scholarly journals Problems of early culling of cows in breeding stocks for milk production

2020 ◽  
Vol 36 (4) ◽  
pp. 381-392
Author(s):  
Predrag Perisic ◽  
Renata Relic ◽  
Cvijan Mekic ◽  
Stefan Stepic
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Production Systems ◽  
Economic Damage ◽  
Cattle Production ◽  
Cattle Breeding ◽  
Breeding Goals ◽  
Specific Technology

A common problem of dairy cattle in all production systems and production directions is their reduced production life and therefore their reduced lifetime span. Among the main reasons of dairy cattle premature culling the problems related to reproduction, udder and legs are prevailing. The order of these reasons according to their significance is not the same in all dairy cattle populations and depends on production direction, level of production and specific technology of cattle breeding. There are also other reasons of culling but these three groups are the main ones. Due to frequency of their incidence, as well as economic damage which they can cause in dairy cattle production, today they must be taken into account when defining breeding goals for certain breeds and populations of cattle.

DIRECTIONS OF DEVELOPMENT OF DAIRY CATTLE BREEDING IN THE YAROSLAVL REGION

2021 ◽  
pp. 8-15
Author(s):  
А.В. КОНОВАЛОВ ◽  
А.А. АЛЕКСЕЕВ ◽  
М.В. АБРАМОВА
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Milk Yield ◽  
Production Systems ◽  
Steady Increase ◽  
Positive Trend ◽  
Cattle Breeding ◽  
Agricultural Enterprises ◽  
Dairy Cattle Breeding ◽  
Breeding Farms

Рассмотрена динамика производства молока в сельскохозяйственных организациях Ярославской области с 2015 по 2019 год. Проведено разделение на группы предприятий по надою молока от 1 коровы. Рассмотрены проблемы малых и средних ферм. Выявлен устойчивый рост валового надоя молока. В 2019 году он составил 292 тыс. т (+16,8% к уровню 2015 г.), что обусловлено увеличением среднегодового надоя на 1 корову до 6967 кг. Наибольший рост продуктивности отмечен в группе хозяйств с надоем от 6001 до 8000 кг (29,4%), что определено комплексным подходом к совершенствованию ведения молочного скотоводства и укреплением кормовой базы. Выявлена положительная тенденция увеличения доли вегетативных траншейных кормов I и II класса, которая в 2019 году составила 66% и возросла на 20 п.п. по сравнению с 2015 годом. Анализ породного состава молочного скота в регионе показал увеличение доли высокопродуктивных пород в племенных хозяйствах с 16,5% в 2015 году до 26,0% в 2019 году. Интенсивное использование животных приводит к ранней выбраковке коров в возрасте 3,07 отела и снижению среднего возраста стад до 2,43 отела. Дальнейший рост производства молока в регионе возможен при решении комплекса задач по оптимизации породного состава молочного скота, совершенствованию производственных систем в малых и средних сельскохозяйственных предприятиях, повышению уровня кормления и улучшению условий содержания скота. The dynamics of milk production in agricultural organizations of the Yaroslavl region in the period from 2015 to 2019 is considered, the grouping of enterprises by milk yield is carried out, the problems of small and medium-sized farms are emphasized, a steady increase of milk production was revealed, which in 2019 amounted to 292 thousand tons (+16.8% compared to 2015), which is due to an increase in the average annual milk yield per cow to 6967 kg. The greatest increase in productivity was observed in the group of farms with milk yield from 6001 to 8000 kg (+29.37%). This is determined by a comprehensive approach to improving the management of dairy cattle and strengthening the feed base. During the study period, a positive trend was revealed to increase the share of vegetative feeds of class I and II quality, which in 2019 amounted to 66% and increased by 20 p.p. compared to 2015. Analysis of the breed composition of dairy cattle in the region showed an increase in the share of highly productive breeds in breeding farms from 16.5% in 2015 to 26.0% in 2019. At the same time, intensive use of animals leads to an earlier cull of cows at the age of 3.07 calving and a decrease in the average age of herds by 6.5%, which is 2.43 calving. Further growth of milk production in the region is possible when solving a set of tasks to optimize the breed composition of dairy cattle, improve production systems, in small and medium-sized agricultural enterprises, increase the level of feeding and improve the conditions of keeping livestock.

Inhibited development of Ostertagia ostertagi in relation to production systems for cattle

Parasitology ◽  
1982 ◽  
Vol 85 (1) ◽  
pp. 21-25 ◽  
Author(s):  
M. G. Smeal ◽  
A. D. Donald
Keyword(s):  
Beef Cattle ◽  
Dairy Cattle ◽  
Production System ◽  
Production Systems ◽  
New South ◽  
New South Wales ◽  
Cattle Production ◽  
Ostertagia Ostertagi ◽  
South Wales

SUMMARYOn a coastal farm in New South Wales where beef and dairy cattle production was carried on side-by-side, separate pasture plots were contaminated with eggs of Ostertagia ostertagi by calves from each production system in autumn, winter or spring. Successive groups of parasite-free tracer calves grazed on the plots for 14 days at 4-week intervals and were then killed for worm counts 14 days after removal from pasture. On all plots, the proportion of inhibited early 4th-stage larvae in tracer calves reached a maximum in spring, and was consistently and very significantly higher in calves which grazed plots contaminated with O. ostertagi of beef cattle origin. Factors which may be responsible for this difference between beef and dairy cattle populations of O. ostertagi are discussed.

DEVELOPMENT OF MILK PRODUCTION IN UKRAINE AND ECONOMIC SUSTAINABILITY OF THE DAIRY COMPLEX

2019 ◽  
pp. 8-15
Author(s):  
Vitalii NITSENKO ◽  
Yuriy I. DANKO
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Dairy Industry ◽  
The State ◽  
Small Scale ◽  
Economic Sustainability ◽  
Scale Production ◽  
Economic Stability ◽  
Cattle Breeding ◽  
Starting Point

The aim of the study was to develop theoretical, methodological and practical foundations for achieving the economic sustainability of dairy products by enterprises. The structure of the dairy subcomplex in terms of supply chain management is disclosed. This methodological approach made it possible to outline the external environment of the milk production and the dairy industry as a whole. We consider the category «economic sustainability» as the system ability to maintain its working condition in order to achieve the planned results in the presence of various perturbation effects (destabilizing internal and external factors). The starting point was the hypothesis that the economic sustainability of the dairy subcomplex as a whole depends on the economic sustainability of milk production entities (agricultural enterprises and households). Comparing the profitability level that has the potential to provide dynamic economic stability with the average in the dairy industry proves - without active state support the dairy industry in Ukraine is in danger of phasing out. The analysis of economic practices in Ukraine (in particular, data of the State Statistics Service) allowed to formulate the author's vision of the directions of achieving the dairy sub-sector of the state of dynamic economic stability. They include: the development of industrial dairy cattle as opposed to the dominance of small-scale production; changes in pricing policy, as well as the calculation of government subsidies by reformatting approaches to determining the cost of milk production, which will allow to adjust the reproduction system of own livestock and will increase the profitability of the dairy industry; achievement of higher quality of dairy raw materials by means of logistical re-equipment of farms, improvement of personnel qualification, provision of high sanitary standards, improvement of veterinary services; diversification of milk distribution channels in order to reduce the market power of the processing industry enterprises. Key words: milk production, economic sustainability, dairy subcomplex, industrial cattle breeding, dairy cattle breeding.

scholarly journals Mapping quantitative trait loci controlling milk production in dairy cattle by exploiting progeny testing.

Genetics ◽  
1995 ◽  
Vol 139 (2) ◽  
pp. 907-920 ◽  
Author(s):  
M Georges ◽  
D Nielsen ◽  
M Mackinnon ◽  
A Mishra ◽  
R Okimoto ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Dairy Cattle ◽  
Milk Production ◽  
Quantitative Trait ◽  
Bovine Genome ◽  
Progeny Testing ◽  
Cattle Breeding ◽  
Trait Loci ◽  
Dairy Cattle Breeding ◽  
Autosomal Microsatellites

Abstract We have exploited "progeny testing" to map quantitative trait loci (QTL) underlying the genetic variation of milk production in a selected dairy cattle population. A total of 1,518 sires, with progeny tests based on the milking performances of > 150,000 daughters jointly, was genotyped for 159 autosomal microsatellites bracketing 1645 centimorgan or approximately two thirds of the bovine genome. Using a maximum likelihood multilocus linkage analysis accounting for variance heterogeneity of the phenotypes, we identified five chromosomes giving very strong evidence (LOD score > or = 3) for the presence of a QTL controlling milk production: chromosomes 1, 6, 9, 10 and 20. These findings demonstrate that loci with considerable effects on milk production are still segregating in highly selected populations and pave the way toward marker-assisted selection in dairy cattle breeding.

Nutrition and feeding of organic cattle

2021 ◽  
Keyword(s):  
Milk Production ◽  
Scientific Literature ◽  
Production Systems ◽  
Organic Production ◽  
Regulatory Agencies ◽  
Cattle Production ◽  
College Teachers ◽  
Organic Milk ◽  
Feed Ingredients ◽  
Cattle Breeds

Abstract The second edition of this book contains 7 chapters that describe the introductory concepts of cattle nutrition, the aims and principles of organic cattle production, the elements of cattle nutrition, ingredients for organic diets, cattle breeds for organic production, integration of feeding programmes into organic production systems and conclusions and recommendations for the future of nutrition of cattle in organic beef and milk production systems. It provides an important source of peer-reviewed references on the organic feeding of cattle from the international scientific literature. Details on permitted feed ingredients, with an emphasis on those grown or available locally, and on suitable dietary formulations are included in the book. It will be of interest to the advisory personnel that service the organic milk and beef industries, researchers, university and college teachers, students, veterinarians, regulatory agencies, feed manufacturers and feed supply companies.

The development potential of Russian cattle breeding

2021 ◽  
pp. 30-34
Author(s):  
Vladimir I. Chinarov
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Dairy Herd ◽  
Cattle Breeding ◽  
Holstein Breed ◽  
Cattle Breeds ◽  
Bull Semen ◽  
Dairy Cattle Breeding ◽  
The Usa ◽  
Lost Potential

Production intensification at Russian cattle breeding was accompanied by negative trends in herd reproduction. Over a ten-year period, the productivity of the controlled dairy herd (more than 1.6 million heads) increased by 51.9%, and the average age of cows culling decreased from 5.3 to 4.6 years, which was the result of reduction in the period of animals productive use by 18.1%. Ignoring these objective processes and the lack of due attention to the breeding of cattle breeds with a higher productive longevity has led to the fact that at many herds of our country even simple reproduction is not provided. Repairing of the main herd is largely provided by purchased heifers, most of which are imported. The annual import volumes of breeding heifers increased by 81% and reached 72.6 thousand heads in 2019. At the same time, the import of bull semen is increasing, mainly (93.5%) of the Holstein breed from the USA, where the breeding with a limited number of bulls has been carried out for several decades, which is a consequence of the genetic weakening of the offspring and becomes the main cause of early cows culling. As a result, the number of cows at Russian dairy cattle breeding has decreased by 33.9% for ten years, the productivity at all categories of farms has increased only by 24.2% that led to reduction of milk production by 555 thousand tons. This process has not yet become irreversible, and the restoration of the lost potential at domestic cattle breeding is possible due to development of the breeding base of zoned cattle breeds.

EFFICIENCY OF APPLICATION OF INNOVATIVE TECHNOLOGIES: EXPERIENCE OF DAIRY FARMS OF THE REPUBLIC OF KAZAKHSTAN

2020 ◽  
Vol 10 (8) ◽  
pp. 1589-1599
Author(s):  
G.U. Akimbekova ◽  
◽  
A.B. Baimukhanov ◽  
U.R. Kaskabaev ◽  
D.V. Serdobintsev ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Economic Efficiency ◽  
Dairy Farms ◽  
High Tech ◽  
Industrial Complex ◽  
Cattle Breeding ◽  
Innovative Technologies ◽  
Dairy Cattle Breeding ◽  
The Republic

The article presents the economic efficiency of the use of innovative technologies in dairy farms, in particular, the technology of keeping calves on the example of three dairy farms containing 1000 or more dairy cows (AIC “Adal” JSC, Aidarbayev farm, LLP “Agrofirm“ Dinara-Ranch “of the Almaty region), which made it possible to determine the development potential of these farms, to give an economic assessment of the level of production. The presented calculation of the economic efficiency of model farms for the dairy industry of the agro-industrial complex of the Republic of Kazakhstan made it possible to ensure a reasonable transfer and adaptation of technologies for the automation of technological processes for the production of livestock products in dairy cattle breeding in Kazakhstan, which will contribute to the achievement of goals, objectives and indicators as part of the implementation of the State Program for the Development of the Agro-Industrial Complex of the Republic of Kazakhstan for 2017-2021 Reducing the volume of milk production and the level of its consumption is a technological backwardness, since the share of dairy farms using modern technologies and equipment is 10-15% of their total number. In addition, the equipment of new and reconstructed dairy complexes and farms does not always correspond to modern technological requirements for keeping and feeding highly productive livestock. As a result, their biological potential is far from being fully realized, which negatively affects the provision of the population with milk and dairy products of domestic production. Taking into account the long duration of the reproduction cycle and the low rate of capital turnover in dairy cattle breeding, the introduction of innovations occurs in the sub-industry with some delay compared to other sub-sectors (pig and poultry farming). One of the tools for modernizing dairy farming in the current conditions is the introduction of modern digital, information and intelligent technologies (artificial intelligence, the Internet of Things and the industrial Internet). Their implementation can turn milk production into a high-tech business, increase labor productivity due to the emergence of super-productive animal breeds, solutions for accelerated selection; high quality feed and veterinary drugs; innovative delivery services.

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