scholarly journals ↵Assessment on Milk Yield and Reproductive Performances of Crossbred Dairy Cattle in Selected Dairy Production Systems of Central Highlands of Ethiopia 

2021 ◽  
Author(s):  
Kiros Abebe ◽  
Tilaye Demissie
Keyword(s):  
Dairy Cattle ◽  
Milk Yield ◽  
Urban Areas ◽  
Production Systems ◽  
Dairy Farm ◽  
Cross Sectional ◽  
Age At First Calving ◽  
Dairy Heifers ◽  
Crossbred Dairy Cattle ◽  
Central Highlands

Background: Productive and reproductive performances are the most important parameters in the Ehiopian dairy sector. The objective of the current study was to assess milk yield, reproductive performances of crossbred dairy cattle and occurrence of reproductive health problems and veterinary services provider/s. Methods: A cross-sectional study using semi-structured questionnaire was used to collect information from 160 randomly selected dairy farm owners found in urban and peri-urban areas of Assela, Bishoftu, Holetta and Sululta of the central highlands of Ethiopia. Result: The higher average daily milk yields were 11.7 and 11.2 litres in urban and peri-urban Bishoftu. The average age at first service of crossbred dairy heifers was 18.8 months in urban and 19.1 months in peri-urban Bishoftu, respectively. The average age at first calving of crossbred dairy heifers was 27.8 months in urban Bishoftu and 28.1 months in peri-urban Bishoftu areas. The longest average age at first service (29.3 months) and age at first calving (38.3 months) were in peri-urban Assela. The number of services per conception was 1.4 in urban Assela and 1.3 in peri-urban Assela and these were shorter than the 1.65 from urban Bishoftu and the 1.85 of peri-urban Bishoftu areas. The average 168.0 days calving to conception interval from peri-urban Assela was the longest calving to conception interval in this study. The average calving intervals 14.9 and 13.9 months of peri-urban Assela and Sululta were relatively longer than the respective urban areas.

scholarly journals Factors affecting the milk production of dairy cattle in northern rural areas of Bangladesh

2015 ◽  
Vol 4 (2) ◽  
pp. 41-45 ◽  
Author(s):  
MR Begum ◽  
M Anaruzzaman ◽  
MSI Khan ◽  
M Yousuf
Keyword(s):  
Body Weight ◽  
Dairy Cattle ◽  
Milk Production ◽  
Rural Areas ◽  
Binary Logistic Regression ◽  
Cross Sectional Study ◽  
Lactation Period ◽  
Cross Sectional ◽  
Age At First Calving ◽  
Factors Affecting

A cross sectional study was conducted to observe the factors affecting the productive performance of dairy cattle from northern rural areas of Bangladesh during July and September 2013. Data of 105 cows, 85 (80.95%) from local and 20 (19.05%) cows from cross breed, were randomly selected for the study. A binary logistic regression, expressed by odds ratio with 95% confidence interval, was done to determine the association of daily milk production categorized into ? 2 and > 2 liters (L), based on median, with the significant explanatory variables of body weight, age at first calving, lactation period, vitamin use, type of floor and milking person. The result demonstrated that the probability of milk production of >2 L was 6.16, 4.5, 20.65 and 5.7 times higher from the with animal body weight of >140 kg, age at first calving of >36 m, lactation period of >8 m and vitamin use than that of body weight of 140 kg, age at first calving of ?36 m, lactation period of ? 8 m, and not vitamin used respectively. The chance of milk production of > 2 L was 0.25 and 0.22 times lower for mud floor, and owner milking than that of brick floor and gowala (professional milking person) respectively. DOI: http://dx.doi.org/10.3329/ijarit.v4i2.22646 Int. J. Agril. Res. Innov. & Tech. 4 (2): 41-45, December, 2014

Effect of first 60-day cumulative milk yield on days open in Holstein dairy cows in Iran

2007 ◽  
Vol 2007 ◽  
pp. 148-148
Author(s):  
A. Heravi Moussavi ◽  
M. Danesh Mesgaran ◽  
T. Vafa
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Dairy Farm ◽  
Reproductive Efficiency ◽  
Root Cause ◽  
Principal Factors ◽  
Days Open ◽  
Holstein Dairy Cows

Reproduction and milk production are the principal factors that are influencing dairy farm profitability. The dairy industry in Iran has changed dramatically in the last decade. The shift toward more productive cows and larger herds in Iran is associated with a decrease reproductive efficiency (Heravi Moussavi et al., 2004). Increased knowledge about the principal causes of reduced fertility is essential. The root cause of the declining fertility is probably a combination of a variety of physiological and management factors that have an additive effect on reproductive efficiency. Dairy cattle are inseminated and pregnancy is established while dairy cows are lactating. Based on the analyses of large datasets, there is clearly an antagonistic relationship between milk production and reproduction in dairy cattle (Lucy, 2001). It was shown that the hazard ratio for cumulative first 60-day milk yield and conception in high producer cows was 8 percent less than the others and also high milk yield was a risk factor for several reproductive disorders (Grohn and Rajala-Schultz, 2000). The objective of this study was to evaluate the effect of first 60-day cumulative milk yield on days open in Iranian Holstein dairy cows.

Factors affecting weight and age at first calving, first lactation milk yield in Gir cows

2016 ◽  
Author(s):  
Basdev Singh ◽  
Pushkraj Sawant ◽  
Dhruvaraj Sawant ◽  
Sachin Todkar ◽  
Richa Jain
Keyword(s):  
Genetic Correlation ◽  
Milk Yield ◽  
Dairy Farm ◽  
Madhya Pradesh ◽  
Age At First Calving ◽  
Factors Affecting ◽  
Phenotypic Correlations ◽  
Heritability Estimates

The present study was undertaken on data of 113 Gir cows maintained at Kasturba Gram Dairy Farm, Indore, Madhya Pradesh, India over a period of 18 years from 1995 to 2012, based on age at first calving. The overall means for weight at first calving (WFC), age at first calving (AFC), and first lactation milk yield (FLMY) were 402.22± 1.28 kg, 1709.04± 51.92 days and 1664.95± 280.72 litres respectively. The heritability estimates for WFC, AFC and FLMY were 0.248± 0.234, 0.307± 0.206 and 0.112± 0.252 respectively. The genetic correlation between WFC and AFC was positive and significant, while it was negative in between WFC and FLMY. The genetic correlation between AFC and FLMY was low and negative. The phenotypic correlations between all traits were positive.

scholarly journals Estimation of Genetic Effects on Milk Yield and Constituent Traits in Crossbred Dairy Cattle

1982 ◽  
Vol 65 (5) ◽  
pp. 848-856 ◽  
Author(s):  
E.J. Rincon ◽  
E.C. Schermerhorn ◽  
R.E. Mc Dowell ◽  
B.T. Mc Daniel
Keyword(s):  
Dairy Cattle ◽  
Milk Yield ◽  
Genetic Effects ◽  
Crossbred Dairy Cattle

Productive and reproductive performance of crossbred and indigenous dairy cows at smallholdings in selected towns of Jimma Zone, Ethiopia

2021 ◽  
Vol 61 (1) ◽  
pp. 92
Author(s):  
Belay Duguma
Keyword(s):  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Yield ◽  
Reproductive Performance ◽  
Management Practices ◽  
Production Systems ◽  
Management Strategies ◽  
Factors Affecting ◽  
Jimma Zone ◽  
Improvement Programs

Context Evaluation of the performance of dairy cows kept in different production systems is essential for the development of appropriate breeding strategies. Aims To examine milk production and reproductive performance of crossbred (CB) and indigenous (I) dairy cows, farmers’ traits preference for CB and I breeding females, and factors affecting the performance of dairy cattle on smallholdings in selected towns of Jimma Zone, Ethiopia. Methods In total, 52 smallholder dairy cattle farmers were randomly sampled and data were collected through individual face-to-face interviews by using structured questionnaires. The traits studied were daily milk yield (DMY), lactation milk yield (LMY), lactation length (LL), age at first service (AFS), age at first calving (AFC), calving interval (CI), days open (DO), and number of service per conception (NSC), all being factors affecting performance of dairy cattle and farmers’ preferred dairy traits. Results On average, CB cows had significantly (P < 0.05) higher DMY (6.0 ± 0.33 vs 1.8 ± 0.07 L/cow), LMY (1466.7 ± 1.13 vs 376.0 ± 21.02 L (L)), LL (8.1 ± 0.41 vs 6.9 ± 0.22 months), and lower AFS (2.69 ± 0.1 vs 3.3 ± 0.07 years), AFC (3.7 ± 0.13 vs 4.3 ± 0.07 years) and CI (21.2 ± 1.37 vs 29.8 ± 1.30 months) than did I cows. However, DO and NSC were not significantly (P > 0.05) affected by genotype. In order of perceived importance, high milk yield (mean rank = 0.306), LL (0.292) and fertility (0.199) were farmers’ most preferred traits for CB breeding cows, and the corresponding preferred traits for I cows were high milk yield (0.253), adaptability (0.229) and LL (0.192). The most important factors perceived by farmers affecting the performance of dairy cattle were breed, nutrition, diseases, breeding and management practices Conclusions The findings of the study indicated that even though CB cows performed better, the performance of both breeds of dairy cows in the study area was found to be generally low due to delayed AFS, late AFC, long CI, shorter LL, low daily and LMY and high NSC. Implications The study highlighted that there is a potential for increasing the performance of dairy cows in the study area, through improved management strategies leading to shorter AFS, AFC, CI and lower NSC. Furthermore, future breed-improvement programs should take into consideration farmers’ trait preferences in design of sustainable improvement programs.

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.

scholarly journals Changing risk of environmental Campylobacter exposure with emerging poultry production systems in Ethiopia

2015 ◽  
Vol 144 (3) ◽  
pp. 567-575 ◽  
Author(s):  
M. C. BRENA ◽  
Y. MEKONNEN ◽  
J. M. BETTRIDGE ◽  
N. J. WILLIAMS ◽  
P. WIGLEY ◽  
...  
Keyword(s):  
Rhode Island ◽  
Rural Areas ◽  
Urban Areas ◽  
Production Systems ◽  
Significant Risk ◽  
Cross Sectional Study ◽  
Poultry Production ◽  
Urban District ◽  
Cross Sectional ◽  
High Production

SUMMARYCampylobacter is a leading cause of diarrhoea, and its presence in chickens is a significant risk for zoonotic infection. Poultry production is becoming increasingly intensive in Ethiopia and is incorporating more high-producing breeds into traditionally managed smallholdings, especially in peri-urban areas. This cross-sectional study sampled 219 household environments in one peri-urban and two rural areas of Ethiopia, and an additional 20 semi-intensive farms in the peri-urban district. Campylobacter was detected by polymerase chain reaction (PCR)-specific assays in 44 samples; 16 of which could be identified as C. jejuni. Flocks in the peri-urban area were at significantly greater odds of detection, including those which only kept indigenous birds under a scavenging system. It was also noted that scavenging flocks of exotic high-production birds (Rhode Island Red) were at slightly greater risk, perhaps as exotic birds are under more stress when kept under traditional management systems. We suggest that changes to the system of chicken production may alter the ecology and epidemiology of Campylobacter in the environment, chickens and people, which may drive emergence of new epidemiological patterns of disease. Further research is needed to determine the extent to which the current management intensification and the distribution programmes of exotic and/or improved indigenous birds may alter Campylobacter epidemiology, ecology and public health risk, before their widespread adoption.

scholarly journals Seroprevalence and associated risk factors for bovine paratuberculosis in dairy cattle

2021 ◽  
Vol 72 (1) ◽  
pp. 2647
Author(s):  
A SELIM ◽  
R HALIM ◽  
E GALILA ◽  
F HAMOUDA
Keyword(s):  
Risk Factors ◽  
Dairy Cattle ◽  
Dairy Cows ◽  
Milk Yield ◽  
Dairy Farm ◽  
Johne's Disease ◽  
Lactation Period ◽  
Elisa Method ◽  
Associated Risk Factors ◽  
Important Disease

Paratuberculosis is an economically important disease in dairy cows and requires continuous surveillance. The study aimed to investigate the seroprevalence of bovine paratuberculosis (Johne’s disease) in one of dairy farm in Egypt. A total of 964 dairy cattle were blood sampled and examined with an ELISA method. One-hundred fifty-five (16.1%) samples reacted positively. The results revealed that age was significantly associated with the prevalence of paratuberculosis in dairy cattle, particularly in animals over 6 years of age. Furthermore, the lactation period, milk yield and pregnancy had non-significant effect on appearance of paratuberculosis in cattle.

Sign in / Sign up

Export Citation Format

Share Document