Calving Interval
Estimation of Genetic Parameters for 305 Days Milk Yields and Calving Interval in Xinjiang Brown Cattle
... and calving in- terval (CAI) of registered Xinjiang Brown ...with calving records from 1990 to ...and calving interval of calving for 305 days MEM, and year, season and parity of birth ...
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Paratuberculosis sero-status and milk production, SCC and calving interval in Irish dairy herds
... The consequences of paratuberculosis for farm economics in Ireland may differ from estimates found in other countries due to the seasonal, pasture-based systems of milk production practiced here. The effect of ...
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Effect of Calving Interval on Milk Yield and Quality Lactation in Dairy Cows
... Table 2 presents the means and dispersion indices for incomplete gamma function parameters where the percentage of total solids during the normal lactation, depending on the calving interval in Romanian ...
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Calving Interval of Productive PC to Increase Cattle Population Growth: A Case Study At South Sulawesi, Indonesia
... the calving interval to the growth of the beef cattle population in ...and calving interval ...the calving interval on the growth of the beef cattle population in Indonesia can ...
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Effect of Non Genetic Factors on Calving Interval of Swamp Buffalo in Poso District, Indonesia
... and calving intervals until partus can also be effected by availability of energy before calving (Mc Clure, 1994; Peters and Ball, 1994; Mucha and Stranberg, ...the calving interval and ...
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The Associations between Calving Interval and Milk Production traits in population of dairy cows of Slovak Simmental cattle.
... of calving age, breed fraction and month of calving on calving interval and survival across parities in Irish spring-calving dairy ...
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Estimation of Genetic and Phonotypic Trends for Age at First Calving, Calving Interval, Days Open and Number of Insemination to Conception for Isfahan Holstein Cows
... first calving, calving interval, days open and number of insemination to conception rate the records of 63,866 cows including 167793 reproductive records were ...first calving (0.19±0.007), ...
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Genomic association study for age at first calving and calving interval in Romosinuano and Costeño con Cuernos cattle
... Romosinuano (ROMO) and Costeño Con Cuernos (CCC) are two Colombian cattle breeds that are well adapted to the climatic conditions of the Caribbean region of Colombia and are characterized by having a high reproductive ...
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A study of lactational and reproductive performances of autumn or spring calving cows in commercial winter milk supply herds : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science in Animal Science, Department of Animal Science, Massey University, New Zealand
... IV Reproductive performances, number of cows in the herd per season, calving interval days/cow, conception rate or 42 day non-return rate % of the herd, 4 weeks submission rate % of the [r] ...
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Evaluation of two dairy herd reproductive performance indicators that are adjusted for voluntary waiting period
... time interval measurements are frequently used as reproduc- tive performance indicators and many are calculated in relation to the cow ’ s individual calving ...the calving interval (CI), days ...
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Effect of concentrate supplementation level on production, health and efficiency in an organic dairy herd
... increasing calving interval, and in- milk production by ...These interval between first and second calving was sig- effects were most pronounced for the first parity nificantly increased by 45 ...
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Estimated differences in economic and environmental performance of forage based dairy herds across the UK
... and calving interval (411 days), the average SCC (237,000 cells/ml) and subsequent estimated incidence of mastitis (29%) was higher than in other re- gions (ranging from 21% to 24%), which may explain the ...
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Lactation Persistency and its Genetic Evaluation in Cattle—A Review
... yielding dairy cattle has caused reduction in reproductive performance. To ensure that cows persistent for milk production have good reproductive performance, it is important to study the relationship between persistency ...
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Temporal trends in reproductive performance in Irish dairy herds and associated risk factors
... mean calving interval (394 days) and mean culling rate (28%) were high, the Irish herds had below average calving interval, culling rate and milk yield (EDF, ...
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Citation : Krpálková L., Cabrera V.E., Zavadilová L., Štípková M. (2019): The importance of hoof health in dairy production.
... Prevalence of hoof disease on dairy farms. Hoof disorders constitute an important problem for intensive dairy operations all over the world (Chapinal et al. 2013). This might be due to loss of natural environment and ...
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Monitoring of physical activity for management of cow reproduction
... the calving interval was 400 days and to detect the influence of some factors (breed, year, season, parity) on the length of anoestrus and the intensity of increased physical activity during ...mean ...
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Productive and reproductive performance and management practices of crossbreed dairy cows at jimma college of agriculture and veterinary medicine dairy farm, Ethiopia
... long calving interval might be a reflection of the management level, which can be accounted to the available farm input and reproductive ...of calving interval. Long open periods, hence long ...
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Bayesian inference of genetic parameters for reproductive traits in Sistani native cows using Gibbs sampling
... and calving dates of 346 Sistani cows, recorded from 1999 to 2013, were used to estimate the genetic parameters for the reproductive ...the calving interval (CI), gestation length (GL), days open ...
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Genetics of feed intake and efficiency in grazing dairy cows : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Animal Science
... = calving interval (%); Surv = survival (%); CCWT = cull cow weight (kg); CWT = carcass weight (kg); CFat = carcass fat (score); CConf = carcass confirmation (score); DCD = direct calving difficulty ...
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Genetics of feed intake and efficiency in grazing dairy cows : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Animal Science
... Due primarily to a lack of phenotypic data, little research has been undertaken on the genetic inter-relationships between feed efficiency and reproductive performance in lactating dairy cows. The objective of the ...
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