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Journal articles on the topic 'Cows – Statistics'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Deb, GK, MA Kabir, MFH Miraz, et al. "In vivo study of follicular statistics in Red Chittagong Cattle of Bangladesh." Bangladesh Journal of Animal Science 47, no. 1 (2018): 47–50. http://dx.doi.org/10.3329/bjas.v47i1.39402.

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The objective of this research was to generate baseline information on follicular statistics of Red Chittagong Cattle (RCC).Ten heifers and ten regular breeder RCC cows were selected randomly from BLRI Research Herd. The ovary was grasped by inserting left hand through the rectum and the follicles were visualized by inserting a sectorial probe through the vagina. Ovarian follicles were visualized and recorded by counting on the screen of ultrasonography machine. All visible follicles (>2.0mm) were counted and graded as small (<3.0mm), medium (3.0 to 8.0mm) and large (>8.0mm). The foll

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Rapp, Delphine, Colleen M. Ross, Eve J. Pleydell, and Richard W. Muirhead. "Differences in the Fecal Concentrations and Genetic Diversities of Campylobacter jejuni Populations among Individual Cows in Two Dairy Herds." Applied and Environmental Microbiology 78, no. 21 (2012): 7564–71. http://dx.doi.org/10.1128/aem.01783-12.

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ABSTRACTDairy cows have been identified as common carriers ofCampylobacter jejuni, which causes many of the human gastroenteritis cases reported worldwide. To design on-farm management practices that control the human infection sourced from dairy cows, the first step is to acquire an understanding of the excretion patterns of the cow reservoir. We monitored the same 35 cows from two dairy farms forC. jejuniexcretion fortnightly for up to 12 months. The objective was to examine the concentration ofC. jejuniand assess the genetic relationship of theC. jejunipopulations excreted by individual cow

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Aksoy, Neşe Hayat, Caner Öztürk, Tahir Karaşahin, and Şükrü Dursun. "A Study on the Definition of Some Biochemical Parameters and Oxidative Status According to Milk Yield in Cows." Turkish Journal of Agriculture - Food Science and Technology 9, no. 8 (2021): 1573–79. http://dx.doi.org/10.24925/turjaf.v9i8.1573-1579.4507.

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Our study, which investigates the factors affecting milk yield at metabolic and oxidative stress levels in Holstein breed cows raised in Aksaray Region, is the first at the regional level. It was aimed to perform biochemical and antioxidant screenings according to milk yield levels in healthy Holstein cows raised in the province, and thus, together with the determination of general metabolic parameters, the differences in total antioxidant and total oxidant levels according to milk yield were investigated. Glucose, total protein, albumin, globulin, total cholesterol, triglyceride, and calcium

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Monardes, H. G., and J. F. Hayes. "Genetic and Phenotypic Statistics of Lactation Cell Counts in Different Lactations of Holstein Cows." Journal of Dairy Science 68, no. 6 (1985): 1449–55. http://dx.doi.org/10.3168/jds.s0022-0302(85)80982-6.

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Tani, M., C. Tani, K. Tomokawa, et al. "152 EFFECT OF EMBRYO TRANSFER AFTER ARTIFICIAL INSEMINATION ON THE CONCEPTION RATE IN DAIRY COWS UNDER HEAT STRESS IN SOUTHERN JAPAN." Reproduction, Fertility and Development 23, no. 1 (2011): 179. http://dx.doi.org/10.1071/rdv23n1ab152.

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A serious decline in the reproductive performance of dairy cows occurs in southern Japan in the summer period, when the total number of hot days ≥35°C numbers more than 20 days annually. Previous reports have mentioned the effectiveness of embryo transfer (ET) at 7 days after AI (AI/ET) under heat-stressed conditions. In the present study, we investigated the effect of AI/ET on conception rate (CR) under heat-stressed conditions in the summer period. Artificial insemination was performed at 13 commercial dairies in this study from August through September in 2007 and 2008. Seven days after AI,

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Piwczyński, D., and B. Sitkowska. "Statistical modelling of somatic cell counts using the classification tree technique." Archives Animal Breeding 55, no. 4 (2012): 332–45. http://dx.doi.org/10.5194/aab-55-332-2012.

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Abstract. The research studied a sample of 455 Polish Holstein-Friesian Black and White cows. Its aim was to apply and compare two modern statistical methods, i.e. classification trees and a logistic regression in examination of the impact of selected lactation-related factors (successive lactation, herd size and production level, year of calving, calving season, test day season, lactation phases and the amount of milk obtained in a test milking) on the somatic cell counts. Two different division criteria were taken into account in the creation of classification trees, i.e. entropy reduction a

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Zaznobina, T. V., and O. V. Ivanova. "TOXIC ELEMENTS CONTENT ANALYSIS OF BLOOD AND MILK OF COWS." Bulletin of Nizhnevartovsk State University, no. 2 (June 15, 2019): 92–97. http://dx.doi.org/10.36906/2311-4444/19-2/11.

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Currently, one of the main economic policies of the Russian Federation in the field of food security is production of safe food and consumer protection. The aim of the research was to study the content of such toxic elements as Zn, Cd and Pb in milk and blood of cows. Experimental studies were carried out at stud farms Plemzavod Tayozhny LLC in Suhobuzimsky District and OPH Solyanskoe LLC in Rybinsk District, Krasnoyarsk Krai, Russian Federation. The milksamples were studied by atomic absorption method; the blood serum samples, by mass spectrometry. Blood serum samples were obtained by sedimen

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Vlček, Michal, and Radovan Kasarda. "Effect of the claw disorders on production performance in dairy cattle." Acta Agraria Debreceniensis, no. 67 (February 3, 2016): 15–19. http://dx.doi.org/10.34101/actaagrar/67/1745.

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The aim of the study was the influence of claw disorders on production traits in dairy cattle. Observed were claw traits as claw angle, claw length, heel index, claw height, claw diagonal and claw width. Right hind claw after functional trimming was evaluated. Occurrence of claw disorders like interdigital dermatitis and heel erosion (IDHE), digital dermatitis (DD) and sole ulcer (SV) as well as the progress of disease were observed. Basic summary and variation statistics was performed by the SAS software. Two herds were included in the study. Holstein dairy cows (n=101) produced 11 875 kg of

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9

Silva, H. M., C. J. Wilcox, A. H. Spurlock, F. G. Martin, and R. B. Becker. "Factors Affecting Age at First Parturition, Life Span, and Vital Statistics of Florida Dairy Cows." Journal of Dairy Science 69, no. 2 (1986): 470–76. http://dx.doi.org/10.3168/jds.s0022-0302(86)80425-8.

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10

NASRI, M. H. FATHI, J. FRANCE, N. E. ODONGO, S. LOPEZ, A. BANNINK, and E. KEBREAB. "Modelling the lactation curve of dairy cows using the differentials of growth functions." Journal of Agricultural Science 146, no. 6 (2008): 633–41. http://dx.doi.org/10.1017/s0021859608008101.

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SUMMARYDescriptions of entire lactations were investigated using six mathematical equations, comprising the differentials of four growth functions (logistic, Gompertz, Schumacher and Morgan) and two other equations (Wood and Dijkstra). The data contained monthly milk yield records from 70 first, 70 second and 75 third parity Iranian Holstein cows. Indicators of fit were model behaviour, statistical evaluation and biologically meaningful parameter estimates and lactation features. Analysis of variance with equation, parity and their interaction as factors and with cows as replicates was perform

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García, C. A. C., F. M. G. Prado, L. L. Galicia, and T. F. Borderas. "Reference values for biochemical analytes in Mexican dairy farms: interactions and adjustments between production groups." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 69, no. 2 (2017): 445–56. http://dx.doi.org/10.1590/1678-4162-9114.

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ABSTRACT Blood samples of 189 healthy Holstein cows classified as high-producers, low-producers, or dry cows, were collected with the purpose of establishing reference values for several biochemical analytes in Mexican dairy farms. Mean values were calculated for: 1) Energy profile: glucose, cholesterol, triglycerides, β-hydroxybutyrate, and non-esterified fatty acids, 2) Protein profile: urea, albumin, globulin, and total protein, 3) Mineral profile: calcium, phosphorus, sodium, potassium, magnesium, chlorine, carbon dioxide, bicarbonate, and anion gap, and 4) Hepatic enzyme: γ-glutamyl trans

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Wieland, Matthias, Christina Marie Geary, Gloria Gioia, Kerry Lynn Case, Paolo Moroni, and Anja Sipka. "Vacuum Dynamics as an Alternative Method for Detection of Bimodal Milk Ejection in Dairy Cows." Animals 11, no. 7 (2021): 1860. http://dx.doi.org/10.3390/ani11071860.

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The primary objective of our study was to assess the ability of a vacuum recorder to detect the presence of bimodal milk flow curves in dairy cows compared with a portable milk flow meter. In a cross-sectional study, 241 individual cow milking observations were analyzed. We simultaneously collected (1) individual cow vacuum events during milking using portable vacuum recorders, and (2) individual cow milk flow curves by attaching a portable milk flow meter to the same milking unit. Presence of bimodality was assessed with the vacuum recorder visually (BIMVA) and with the gold standard method o

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Afdal, M., S. Syarif, and A. Kasim. "Effect of processing of palm oil petiole on palatability in Bali cows (Bos sondaecus)." Proceedings of the British Society of Animal Science 2009 (April 2009): 93. http://dx.doi.org/10.1017/s175275620002932x.

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Palm oil petiole (POP) is a pruning by-product from palm oil plantations. POP is the stalk of the palm oil frond (POF) without the leaflets and the outer layer. By weight, it contributed about 30 percent of POF. POP was a possible alternative for POF in feeding Bali cows (Bos sondaecus) since Bali cows we observed to reject fresh POF. Central Bureau of Indonesian Statistics (2006) reported that the production of POF was around 10,869,365 t from around 3,682,900 ha of palm oil plantation in Indonesia which is equivalent to 3,260,810 t of POP. POF are successfully used as feed for Bos taurus and

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14

Kuziv, M. I. "External characteristics adults cows of ukrainian black and white dairy breed." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 19, no. 74 (2017): 80–83. http://dx.doi.org/10.15421/nvlvet7418.

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The results of the evaluation exterior of the animals Ukrainian black and white dairy cattle in the western region of Ukraine. Studies conducted on animals Ukrainian black and white dairy cattle in the «Milk River» farm in the Sokal and Brody offices breeding reproducers «Breeder» Lviv region and plant breeding «Yamnytsya» Ivano-Frankivsk region. Exterior animals was assessed by measurement of body articles. By value measurements calculated indices of body structure cows. Weight-size factor determined by the formula D.T. Vinnychuka and P.N. Merezhko. The results of research were treated by var

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Balirwa, Elizabeth K., and Emmanuel Waholi. "Analysis of Market Participation Behavior Among Smallholder Dairy Farmers in Uganda." Journal of Agricultural Science 11, no. 3 (2019): 109. http://dx.doi.org/10.5539/jas.v11n3p109.

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Market participation of smallholder farming has gained priority in the policy agenda of many developing countries as an engine for economic growth. In Uganda, smallholder dairy farming has been adopted as a strategy for the country&rsquo;s economic transformation through commercialization but efforts to improve dairy market sales have not been successful. Without appropriate interventions, Uganda may fail to take advantage of the anticipated increase in demand for livestock products. A study to analyze determinants of dairy farmers&rsquo; market participation and percentage of milk sal

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16

Molefe, K., and M. Mwanza. "Variability of serum reproductive hormones in cows presenting various reproductive conditions in semi-arid areas of the North West Province, South Africa." Veterinary World 13, no. 3 (2020): 502–7. http://dx.doi.org/10.14202/vetworld.2020.502-507.

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Background and Aim: Hormones play a significant role in supporting reproductive processes. Predisposition to metabolic disorders may result from biological alterations in the neurohormonal system, thus leading to impaired immune function and poor reproductive performance. The aim of this study was to determine the reproductive hormonal profile in cows with reproductive conditions in semi-arid areas of the North West Province, South Africa, to establish possible correlations between different conditions and the hormonal profile. Materials and Methods: Blood samples were collected from cows in d

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17

Cremonesi, Fausto, Stefano Bonfanti, Antonella Idda, and Lange-Consiglio Anna. "Improvement of Embryo Recovery in Holstein Cows Treated by Intra-Ovarian Platelet Rich Plasma before Superovulation." Veterinary Sciences 7, no. 1 (2020): 16. http://dx.doi.org/10.3390/vetsci7010016.

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The current research was designed to evaluate if intra-ovarian administration of autologous platelet rich plasma (PRP) before superovulation could increase the number of follicles responsive to gonadotropin treatment in order to improve embryo recovery in donor cows. Eight Holstein-Friesian cows of proven fertility were employed. After estrous synchronization, at the 18th day of diestrous, the right ovary of each cow was left untreated and served as control while the left ovary was inoculated with 5 mL of PRP. Cows were left to spontaneously return to estrous, and nine days later, a standard s

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18

Smith, Adrian F. M. "Mad Cows and Ecstasy: Chance and Choice in an Evidence-Based Society." Journal of the Royal Statistical Society. Series A (Statistics in Society) 159, no. 3 (1996): 367. http://dx.doi.org/10.2307/2983324.

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Dorokhov, A. S., Y. A. Ivanov, V. V. Kirsanov, D. Y. Pavkin, and F. E. Vladimirov. "Diagnosing sub-acute rumen acidosis in cows in the post-calving period with digital technologies." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 73, no. 2 (2021): 271–76. http://dx.doi.org/10.1590/1678-4162-12170.

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ABSTRACT This study aims to determine the relationship between indicators of the motor activity, pH factor, rumen and rectal temperature within 10 days after calving and to analyze the possibility of using the studied parameters as prognostic signs for diagnosing sub-acute rumen acidosis (SARA). The measurements were taken using bolus with sensors designed to monitor cow health. The motor activity, pH factor and ruminal temperature of 10 cows were measured during 10 days at a measurement interval of every 60 seconds. Next, the researchers calculated the average values of the obtained readings,

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Kuzebnyі, S. V. "EFFICIENCY OF DIFFERENT METHODS OF DETERMINATION AND STIMULATION ESTROUS CYCLE OF CATTLE." Animal Breeding and Genetics 56 (December 4, 2018): 120–29. http://dx.doi.org/10.31073/abg.56.16.

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In the conditions of industrial milk production and productivity growth in cows, the increase in the duration of the inter- calving period is noted. This is due to a somewhat prolonged process of involution of the uterus after calving in high-yielding animals and prolongation of the service-period due to lack of detection of animals in estrous cycle. Depending on the technology of maintenance and qualification of service personnel, the number of such animals may increase. The contributing factors include the year-round stall system of keeping cows, the uncontrolled retention of animals in larg

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Voitenko, S. L., and I. M. Zheliznyak. "MILK YIELD OF COWS DEPENDING ON A LINE ON LINEAR BELONGING AND METHOD OF MAINTENANCE." Animal Breeding and Genetics 57 (April 24, 2019): 38–44. http://dx.doi.org/10.31073/abg.57.05.

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Modern market conditions require high quality products, that is why before the producers of animal husbandry, the issue is not only to constantly increase the productivity of animals but also to pay attention to the quality of products. Considering the need to increase milk production as one of the main types of livestock products, the most energy-saving technology should be chosen, which will provide comfortable conditions for keeping animals and displaying their genetic potential, especially for milk production. Taking into account that the purpose of other researches was to determine the in

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Etherington, W. G., M. L. Kinsel, and W. E. Marsh. "Relationship of production to reproductive performance in Ontario dairy cows: Herd level and individual animal descriptive statistics." Theriogenology 46, no. 6 (1996): 935–59. http://dx.doi.org/10.1016/s0093-691x(96)00259-2.

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Liang, Shulin, Chaoqun Wu, Wenchao Peng, Jian-Xin Liu, and Hui-Zeng Sun. "Predicting Daily Dry Matter Intake Using Feed Intake of First Two Hours after Feeding in Mid and Late Lactation Dairy Cows with Fed Ration Three Times Per Day." Animals 11, no. 1 (2021): 104. http://dx.doi.org/10.3390/ani11010104.

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The objective of this study was to evaluate the feasibility of using the dry matter intake of first 2 h after feeding (DMI-2h), body weight (BW), and milk yield to estimate daily DMI in mid and late lactating dairy cows with fed ration three times per day. Our dataset included 2840 individual observations from 76 cows enrolled in two studies, of which 2259 observations served as development dataset (DDS) from 54 cows and 581 observations acted as the validation dataset (VDS) from 22 cows. The descriptive statistics of these variables were 26.0 ± 2.77 kg/day (mean ± standard deviation) of DMI,

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Christi, Raden Febrianto, H. Hermawan, and Lia Budimulyati Salman. "Distribution of Holstein Friesian Dairy Cattle Populations in KUD Gemah Ripah Sukabumi, West Java for Milk Production of during Lactation, Daily Milk Production, and Fat Levels." Chalaza Journal of Animal Husbandry 5, no. 1 (2020): 1–5. http://dx.doi.org/10.31327/chalaza.v5i1.1228.

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Dairy cows are a type of livestock that have been developed by contributing products in the form of milk as a provider of animal protein. The more dairy cow population, the higher the milk production produced. This study aims to determine the population of dairy farming in Gemah Ripah Sukabumi KUD, West Java, and to determine the amount of milk production during the lactation period, daily milk production, and fat content. The research method used was a survey by taking primary and secondary data in 2018 and then analyzed with simple statistics to determine the mean, standard deviation, and co

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Podobed, Leonid I. "Effectiveness of a probiotic based on lactic acid bacteria when changing diets in dairy cows." Agrarian science, no. 11-12 (January 20, 2021): 15–19. http://dx.doi.org/10.32634/0869-8155-2020-343-11-15-19.

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Relevance. Single-type feeding of dairy cows has a significant advantage over traditional split ration feeding due to the minimal frequency of changes in the composition of the ration and the higher stability of feeding. However, in the process of such a feeding method, it is still necessary to change the diet composition during the seasonal transition from the last year feed to the current year feed. This change leads to significant feed stress for animals, which negatively affects the intensity and nature of cicatricial digestion, and, consequently , productivity. At the same time, at least

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Sklyarenko, Y. I., T. O. Chernyavska, L. V. Bondarchuk, and I. P. Ivankova. "THE FORMATION OF FACTORY FAMILIES OF UKRAINIAN BROWN DAIRY BREED." Animal Breeding and Genetics 54 (November 29, 2017): 106–12. http://dx.doi.org/10.31073/abg.54.13.

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The aim of the research was to study milk production of many factory families of Ukrainian Brown dairy breed and study the influence of origin on the indices of milk yield, duration and effectiveness of lifetime use of cows. Method. For research allocated 9 factory families of Ukrainian Brown dairy breed of State Enterprise «Experimental Farm of Institute of Agriculture of Northern East of NAAS» (Valuty 413, Voli 8369, Laymy 8221, Miry 7209, Ryabuhy 9728, Sujety 6091, Tochky 8169, Chubarochky 7743, Shchepky 4344). Among the indicators of the duration and effectiveness of lifetime u

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Bondarenko, Irina, and Kristinа Velikodna. "Analysis of interbreeding and age-dependent indexes of reproductive ability of cows." Bulletin of Sumy National Agrarian University. The series: Veterinary Medicine, no. 2 (49) (October 28, 2020): 47–52. http://dx.doi.org/10.32845/bsnau.vet.2020.2.7.

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Comparative estimation of the periods sexual cycle under futile inseminations cortex and heifers sexual mature age in facilities Sumy region. The profitability of dairy farming in the farms of Sumy region will remain an unresolved issue to this day, as the indicators of reproductive capacity of breeding cows and repair heifers need analysis and correction. Inadequate feeding and inadequate care of pregnant cows and parturients are often added to this. As a consequence of the above - the reproductive capacity inherent in this species of animals is not fully realized, most cows remain infe

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Li, Hong Qiang, Hai Bo Lu, Jiao Qu, and Xiang Ling Li. "Dairy Digital Management Information System Development Based on SOA." Applied Mechanics and Materials 182-183 (June 2012): 1141–44. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1141.

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This paper describes the software of “dairy management information system”. The software based on JSP + Serverlet + JavaBeans model developed for medium-sized dairy farms. The software is divided into herd management, milk production management, cattle breeding, statistics and analysis, a cattle ranch management, system management functions, and dairy cows can be a variety of technical data to analyze, synthesize, organize, is a practical, economic, and user-friendly information management system for dairy farm.

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Shulyar, A. L. "THE ESTIMATION OF THE ECONOMIC USE AND LIFETIME PRODUCTIVITY OF COWS OF UKRAINIAN BLACK-AND-WHITE DAIRY BREED DEPENDING ON THE REASONS OF THEIR DISPOSAL." Animal Breeding and Genetics 56 (December 4, 2018): 84–93. http://dx.doi.org/10.31073/abg.56.11.

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An important selection peculiarity of dairy cows is their productive longevity. Besides, the indicators of cow productivity along with genetic potential are the most important criteria of the economic efficiency of their use. Low or not sufficient level of lifetime productivity indicators and of the period of the economic use of cows determine the necessity of monitoring of the selection information according to these indicators in the breed herds as well as the of using corresponding selection methods for their improvement. The goal of our research was the estimation of an economic use of lif

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Thorne, J. W., C. R. Looney, J. F. Hasler, D. K. Hockley, and D. W. Forrest. "162 FERTILITY OF BEEF RECIPIENTS FOLLOWING A FIXED-TIME EMBRYO TRANSFER PROTOCOL WHICH INCLUDED FOLLICLE STIMULATING HORMONE DILUTED IN HYALURONAN." Reproduction, Fertility and Development 25, no. 1 (2013): 229. http://dx.doi.org/10.1071/rdv25n1ab162.

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This study was performed to test the viability of administering Folltropin-V® (FSH, Bioniche Animal Health) diluted in hyaluronan (MAP-5 50 mg, sodium hyaluronate, Bioniche Animal Health) to beef cows enrolled in a recipient synchronization protocol to evaluate its effect on recipient fertility. All recipients were administered an estradiol 17β (2.5 mg, IM) and progesterone (50 mg, IM) combination injection on Day 0, a CIDR® (progesterone 1.34 g, Pfizer Animal Health, Groton, CT, USA) was inserted for 7 days. Lutalyse® (dinoprost tromethamine, Pfizer Animal Health, 25 mg, IM) was administered

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Scolari, S., G. Pugliesi, S. C. S. Andrade, et al. "201 USING THE TRANSCRIPTOME SIGNATURE TO PREDICT PREGNANCY SUCCESS IN BEEF COWS AT 6 DAYS AFTER ARTIFICIAL INSEMINATION." Reproduction, Fertility and Development 27, no. 1 (2015): 191. http://dx.doi.org/10.1071/rdv27n1ab201.

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Pregnancy success is critical to the profitability of cattle operations. Attempts to reduce high rates of early embryonic loss mainly focus on the critical phase of embryo recognition by maternal tissue. However, the molecular events driving the uterine tissue toward a favourable stage, facilitating the maternal receptivity, are poorly understood. This study aimed to characterise the endometrial transcriptome profiles of pregnant versus nonpregnant beef cows during early pregnancy and attempted to define a potential set of marker genes that can be valuable for predicting pregnancy outcome. The

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Kruglyak, O. V., N. M. Chornoostrovets, M. B. Kulakova, and I. S. Martynyuk. "DEVELOPMENT OF GENETIC RESOURCES OF DAIRY CATTLE BREEDING IN UKRAINE." Animal Breeding and Genetics 60 (November 23, 2020): 47–53. http://dx.doi.org/10.31073/abg.60.06.

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At the present stage, the development of dairy farming needs to focus on increasing the livestock population with high productive indicators in the large-scale sector. In the period from 2000 to 2020, the number of cows in Ukraine decreased by 2.8 times (from 4958.3 thousand heads on 01.01.2001 to 1788.5 thousand heads on 01.01.2020), and in agricultural enterprises – by 4.2 times (from 1851.0 to 438.6 thousand heads respectively). An important factor in the growth of the large-scale sector should be the revival of the national selection system. Therefore, the issue of scientific substantiatio

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Shuliar, A. L., A. L. Shuliar, S. P. Omelkovych, V. P. Tkachuk, and V. F. Andriichuk. "THE GENETIC CONDITIONALITY OF THE ECONOMICALLY USEFUL TRAITS OF THE COWS OF UKRAINIAN BLACK-AND-WHITE DAIRY BREED." Animal Breeding and Genetics 60 (November 23, 2020): 92–98. http://dx.doi.org/10.31073/abg.60.12.

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The intensification of dairy cattle selection determines the need of the systematic evaluation of animals in herds and populations on the main economically useful traits. They have an integrated origin and are controlled by significant groups of factors (genetic, physiological, technological and environmental). In dairy herds, the influence of such genetic factors as belonging to the breed and intrabreed types, the conditional blood share of improving breeds, the linear belonging, the family belonging, the origin by father is realized in the phenotypic performance of economically useful traits

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Polupan, Yu P., Yu F. Melnik, and О. D. Biriukova. "INFLUENCE OF GENETIC FACTORS ON THE PRODUCTIVITY OF COWS." Animal Breeding and Genetics 58 (November 29, 2019): 41–51. http://dx.doi.org/10.31073/abg.58.06.

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The study was conducted on the materials of primary breeding records in the herd of Ukrainian Red-and-White dairy breed of the State Enterprise of the State Enterprise experienced farm “Khristinovske” of the Institute of animal breeding and genetics nd. a. M.V.Zubets of National Academy of Agrarian Science. The calculations were performed by the methods of mathematical statistics by means of software package "STATISTICA-12,0" on the PC. Observed matrix of observations in the format “*.sta”, which contains data on 448 variables of 1540 cows Breeding work has provided a gradual increase in

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Azevedo, Sérgio S., Ana L. T. Vilar, Carolina S. A. B. Santos, Inácio J. Clementino, Leise G. Fernandes, and Clebert J. Alves. "Spatial cluster analysis for bovine paratuberculosis in Paraiba State, Northeastern Brazil." Pesquisa Veterinária Brasileira 37, no. 11 (2017): 1193–97. http://dx.doi.org/10.1590/s0100-736x2017001100002.

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ABSTRACT: The aim of this survey was to identify spatial clustering of bovine paratuberculosis positive herds in the State of Paraíba, Northeastern Brazil. The state was divided into three sampling groups: sampling stratum 1 (mesoregion of Sertão), sampling stratum 2 (mesoregion of Borborema), and sampling stratum 3 (mesoregions of Zona da Mata and Agreste). Ten animals were sampled in herds with up to 99 cows aged over 24 months; 15 animals were sampled in herds with 100 or more cows aged over 24 months; and all animals were sampled in those with up to 10 cows aged over 24 months. In total, 2

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Ilyashenko, G. D. "RELATIONSHIP OF MILK PRODUCTIVITY OF COWS WITH LIVE WEIGHT AND AGE AT THE FIRST INSEMINATION." Animal Breeding and Genetics 54 (November 29, 2017): 45–50. http://dx.doi.org/10.31073/abg.54.06.

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The efficiency of the use of cattle of one or another breed is determined both by the level of milk productivity and the ability of the cattle to reproduce. At the same time, the future reproductive capacity, milk yield and duration of economic use to a large extent depends on the live weight and age when heifers insemination. The purpose of research. Study the effect of live weight and age at the first insemination on the milk productivity cows of Ukrainian red dairy breed. Methods. The research was carried out in the breeding plant of the state enterprise "Elite" of the Kirovogra

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SIACHOS (Ν. ΣΙΑΧΟΣ), N., N. PANOUSIS (Ν. ΠΑΝΟΥΣΗΣ), G. ARSENOS (Γ. ΑΡΣΕΝΟΣ), and G. E. VALERGAKIS (Γ.Ε. ΒΑΛΕΡΓΑΚΗΣ). "Investigation of milk urea nitrogen concentration and factors affecting its variation in Greek Holstein herds." Journal of the Hellenic Veterinary Medical Society 68, no. 3 (2018): 423. http://dx.doi.org/10.12681/jhvms.15530.

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Milk urea nitrogen (MUN) is an important tool in dairy cow nutrition, as it reflects the amount of nitrogen in the diet which is not used for production. The objective of this study was to evaluate MUN values in Greek dairy herds, for the first time, and to investigate the source of its possible variation. For this purpose, a dataset of 23,266 milk records from 24 Holstein herds in the region of Thessaly (Greece) was used. Descriptive statistics, analysis of variance and a multiple regression model were used for statistical analysis. Significant differences were observed among farms (P<0.05

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Tawedzegwa Musitini, Abbysinia Mushunje, and Joseph Muroiwa. "Feeding Management and Extent of Commercialisation among the Smallholder Dairy Farmers in Zimbabwe." Journal of Economics and Behavioral Studies 11, no. 4(J) (2019): 32–42. http://dx.doi.org/10.22610/jebs.v11i4(j).2916.

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This study assessed the effects of grazing and feeding management on the extent of commercialization among the smallholder dairy farmers in Zimbabwe. Using a sample of 225 smallholder dairy farming households selected randomly across 11 smallholder dairy cooperatives in Zimbabwe, data were analysed using descriptive statistics and the ordinary least squares regression method. The study used milk yield as a proxy for commercialization. Farmers whose cows produced higher yield were considered more commercialized than farmers whose cows produced a lower yield. The results indicated that access to

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Chamboko, Tafireyi, Emmanuel Mwakiwa, and Prisca H. Mugabe. "Determinants of Milk Market Participation and Volume of Sales to Milk Collection Centres of the Smallholder Dairy Value Chain in Zimbabwe." Journal of Agricultural Science 9, no. 10 (2017): 156. http://dx.doi.org/10.5539/jas.v9n10p156.

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At the attainment of Zimbabwe’s independence, government of Zimbabwe established the smallholder dairy development programme to encourage smallholder farmers to participate in formal milk markets. Although now more than three decades since the government established this programme, smallholder contribution to the national formal market remains low at 5%. This study was undertaken to determine factors affecting milk market participation and volume of sales to milk collection centres of the smallholder dairy value chain. Four smallholder dairy schemes were purposively selected on the basis of wh

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Puspitaningrum, Dwi Aulia, Masyhuri Masyhuri, Slamet Hartono, and Jamhari Jamhari. "Study of Beef Availability Potential in Yogyakarta Special Province (DIY) through Multi Criteria Analysis (MCA) Model by Spatial Geographic Information System." Agritech 38, no. 1 (2018): 71. http://dx.doi.org/10.22146/agritech.28888.

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The increasing human population and income per capita in Indonesia have many impacts to the demand of food, not only staple food but also the secondary food too, including meat and beef demand. Based on data from Central Statistics Bureau of 1995–2016, beef demand in Indonesia has been increasing. This condition must be anticipated by preparing the supply, especially the availability of beef in Daerah Istimewa Yogyakarta province. In Yogyakarta city, one of the regencies of DIY, the demand rate grows by 3.2%/year, higher than the supply growth rate by 2.08 %/year. This gap needs to be thought

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Shulyar, A. L. "PRODUCTIVE LONGEVITY OF THE COWS OF UKRAINIAN BLACK-AND-WHITE DAIRY BREED UKRAINIAN DEPENDING ON HEREDITARY FACTORS." Animal Breeding and Genetics 57 (April 24, 2019): 152–58. http://dx.doi.org/10.31073/abg.57.18.

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A rather low productive longevity of cows, particularly among holsteinized cattle stock, is observed in dairy husbandry of Ukraine. In the process of creating new dairy breeds in Ukraine, the reduction of cows’ lifespan and productive longevity along with yield increase are observed. The scientists’ research revealed the tendency to cows’ long-term performance reduction under the increasing of the genetic potential of a herd. It stipulates the topicality of the research as to the search of the effective genetic and selective methods of lengthening animals’ long-term performance.&#x

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Dupras, R., J. Dupras, and Y. Chorfi. "138 CELL INTEGRITY OF HOLSTEIN AND JERSEY EMBRYOS: COMPARISON OF TWO FREEZING METHODS." Reproduction, Fertility and Development 20, no. 1 (2008): 149. http://dx.doi.org/10.1071/rdv20n1ab138.

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The aim of this study was to compare cell integrity of Holstein and Jersey embryos using the standard method of freezing and vitrification. Embryos were harvested and processed following standard procedures approved by IETS (International Embryo Transfer Society), and then underwent two methods of freezing. (1) Standard method: embryos were put into 1.5 m ethylene glycol (EG) for 5 min at room temperature, and then at –6.5�C for 10 min for stabilization. After seeding, the temperature was lowered by 0.5�C until it reached –32�C, and then straws containing embryos were plunged into liquid nitro

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Kuziv, М. І., Е. І. Fedorovych, N. M. Kuziv, and I. V. Novak. "INFLUENCE BODY MEASUREMENTS COWS UKRAINIAN BLACK-AND-WHITE DAIRY BREED AFTER THE FIRST CALVING ON THE FORMATION OF FURTHER MILK PRODUCTIVITI." Animal Breeding and Genetics 53 (April 27, 2017): 139–48. http://dx.doi.org/10.31073/abg.53.18.

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The productivity cow dairy breed largely depends on the careful evaluation and selection of animals by milk production and the type of exterior. The estimation of animals by measuring of body plays an important role in plant-breeding work in the process of further improvement of the newly formed Ukrainian dairy breeds by the type. It’s because exterior is one of the main signs of breeding dairy cattle together with indicators of milk production, reproductive ability and productive longevity. The aim of research was to investigate the formation of milk productivity of cows black and white

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Hou, Minghui. "Educational Equality and International Students." Journal of International Students 9, no. 4 (2019): 1191–95. http://dx.doi.org/10.32674/jis.v0i0.618.

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Educational Equality and International Students, recently published by Tannock (2018), explores and highlights how to conceptualize and promote principles of educational equality for both international and domestic students in the United Kingdom. Tannock’s book includes empirical research consisting of 60 interviews with higher education staff and students, as well as the use of higher education institutional documents and secondary statistics collected from universities and national higher education organizations around the UK. Tannock addresses the contradictions between the missions of high

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Lidauer, Martin, and Esa Mäntysaari. "Detection of bias in animal model pedigree indices of heifers." Agricultural and Food Science 5, no. 4 (1996): 387–97. http://dx.doi.org/10.23986/afsci.72751.

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The objective of the study was to test whether the pedigree indices (PI) of heifers are biased, and if so, whether the magnitude of the bias varies in different groups of heifers. Therefore, two animal model evaluations with two different data sets were computed. Data with all the records from the national evaluation in December 1994 was used to obtain estimated breeding values (EBV) for 305-days’ milk yield and protein yield. In the second evaluation, the PIs were estimated for cows calving the first time in 1993 by excluding all their production records from the data. Three different statist

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Duque Quintero, Monica, Ricardo Rosero Noguera, and Marta Olivera Ángel. "Digestión de materia seca, proteína cruda y aminoácidos de la dieta de vacas lecheras." Agronomía Mesoamericana 28, no. 2 (2017): 341. http://dx.doi.org/10.15517/ma.v28i2.25643.

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The aim of this study was to determine the digestion of dry matter (MS), crude protein (PC) and amino acids (AA) in dairy cows. Two cannulated cows were used for the determination of passage rate (Kp), in situ ruminal degradability (DR) and intestinal digestibility (DI) by abomasal catheter. The data to calculate Kp was analyzed with NLIN procedure by SAS, and descriptive statistics for DR and DI of MS, PC and AA from Kikuyu grass (Pennisetum clandestinum), a commercial supplement and two sources of rumen-protected AA. The study showed a Kp and a ruminal retention time of 0.036 h-1 and 27.4 h.

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Deb, GK, SR Dey, MK Alam, et al. "Biometrical analysis of bovine female reproductive system." Bangladesh Journal of Livestock Research 20, no. 1-2 (2020): 1–7. http://dx.doi.org/10.3329/bjlr.v20i1-2.47012.

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This study was conducted to investigate basic biometric information on organs of female reproductive system of indigenous cows. Ovaries were grouped on the basis of corpus luteum (CL) and ovarian position in the tract. Visible follicles were counted and graded as small (<3.00mm), medium (3.0 to 8.0mm) and large (>8.0mm). Oocytes were recovered from all visible follicles and graded into four groups (grade 1 to 4). Results showed that the oviduct, horn, body of the uterus and cervix of cow’s reproductive system were longer and wider than heifers, respectively. Except length, the width and

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Dlamini, Sicelo Ignatius, and Wen-Chi Huang. "A Double Hurdle Estimation of Sales Decisions by Smallholder Beef Cattle Farmers in Eswatini." Sustainability 11, no. 19 (2019): 5185. http://dx.doi.org/10.3390/su11195185.

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Beef cattle farmers are in an ideal position to advance their income through marketing; however, the subsector is characterized by low market participation. Wealth preservation and prestige from cattle accumulation outweigh market incentives, thereby jeopardizing the integration of farmers into organized market systems. Therefore, the study was set to examine the determinants of farmers’ sales decisions in cattle marketing. Understanding determinants of sales decisions is an indispensable base for establishing sustainable development policy frameworks that maximize rural economic growth. Descr

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Іlyashenko, G. D. "DAIRY CATTLE BREEDING IN KIROVOGRAD REGION." Animal Breeding and Genetics 57 (April 24, 2019): 60–67. http://dx.doi.org/10.31073/abg.57.08.

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Dairy cattle breeding is one of the leading livestock sectors whose purpose is to ensure the production of high quality dairy raw materials in volumes meeting the scientifically grounded standards of state food security and expanding the export potential of the agrarian sector. The purpose of our research was to study the status and prospects of dairy cattle breeding in the Kirovograd region. Material and methods of research. The research was carried out on the basis of the electronic database of breeding goals (including 2312 cows), official statistics and estimates of cattle of v

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Wang, Mengqi, Hailiang Song, Xiaorui Zhu, et al. "Toll-like receptor 4 gene polymorphisms influence milk production traits in Chinese Holstein cows." Journal of Dairy Research 85, no. 4 (2018): 407–11. http://dx.doi.org/10.1017/s0022029918000535.

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The research reported in this Research Communication aimed to describe the influence of Toll-like receptor 4 gene polymorphisms on milk production traits in Chinese Holstein cows. Toll-like receptor 4 (TLR4) is an important member of the toll-like receptor gene family that is widely found in various organisms. Since TLR4 can identify molecular patterns from various pathogenic microorganisms and induce natural and acquired immunity, it plays an important role in disease resistance in dairy cows. Two single nucleotide polymorphisms (SNPs) of TLR4 (c.−226 G > C and c.2021 C > T) that were p

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