scholarly journals 189 PRODUCTIVE AND REPRODUCTIVE PROFILE OF HOLSTEINS KEPT IN BALOCHISTAN PROVINCE, PAKISTAN

2005 ◽  
Vol 17 (2) ◽  
pp. 245
Author(s):  
M. Bilal ◽  
M.Y. Lodhi ◽  
S. Chawanakul ◽  
M.A. Kakar
Keyword(s):  
Milk Yield ◽  
Reproductive Potential ◽  
Environmental Data ◽  
Local Conditions ◽  
Production Parameters ◽  
Lactation Length ◽  
Service Period ◽  
Holstein Friesian ◽  
Productive Potential ◽  
Variable Impact

Holstein-Friesian has been rated the number one cattle in the world as far as milk production is concerned. The productive potential is excellent in European countries. Animals of the same breed were imported to meet the milk demand of developing countries such as Pakistan. One thousand cattle from Denmark were imported in 1977–78 by the Balochistan government, and were kept at government dairy farms at seven locations (viz., Kalat, Khuzdar, Loralai, Mastung, Pishin, Quetta, and Zhob). The aim of this study was to determine the productive [age at first calving (AFC), birth weight (BWT), lactation length or milk yield (MY), milk yield per lactation (MYL), days in milk (DIM), and culling and mortality (C&L)] and reproductive potential [service period (SP), age at first service (AFS), gestation period (GP), and calving interval (CI)] of these imported animals while kept under the local conditions of Balochistan. Effect of localities with respect to the environmental data was also explored. Overall average values for AFS were 315 to 986 days with an average of 660.42 ± 12.42, GP 275 to 299 days with an average of 280.62 ± 0.25, and AFC 604 to 1299 days with an average of 944.08 ± 12.71. BWT ranged from 15 to 68 kg with an average of 30.12 ± 0.15, MY from 1471 to 7035 liters with an average of 3731.26 ± 40.52, DIM from 180 to 728 days with an average of 313.56 ± 3.83, and SP ranged from 29 to 886 days with an average of 240 ± 9.61, DP averaged 59.15 ± 20.61 days and CI ranged from 301 to 922 days with an average of 451.10 ± 5.55. The effects of year, season, age, and location were studied and the results revealed that the year influenced the AFS, AFC, BWT, and SP (P < 0.01); GP (P < 0.05) but not DIM and CI (P > 0.05). No effect of season on AFS, AFC, DIM, MY, SP or CI (P > 0.05) was observed, but GP and BWT (P < 0.05) were affected by season. Age influenced the GP and SP (P < 0.05) but not BWT, DIM, MY, and CI (P > 0.05). No effect of sex of the calves, type of birth, and calving number on GP (P > 0.05) was seen. Location of the farm did effect AFS, AFC, BWT, and MY (P < 0.01); CI (P < 0.05); but not GP, DIM, and SP (P > 0.05). In conclusion, differences in environment and seasonality had a variable impact on production parameters in Holstein-Friesian calves.

scholarly journals Genetic Parameters for First Lactation and Lifetime Traits of Nili-Ravi Buffaloes

2021 ◽  
Vol 8 ◽  
Author(s):  
Pooja Tamboli ◽  
Anurag Bharadwaj ◽  
Amit Chaurasiya ◽  
Yogesh Chandrakant Bangar ◽  
Andonissamy Jerome
Keyword(s):  
Genetic Correlation ◽  
Milk Yield ◽  
Phenotypic Correlation ◽  
Productive Life ◽  
Lactation Length ◽  
Service Period ◽  
Reproduction Traits ◽  
Genetic And Phenotypic Correlations ◽  
Breeding Efficiency ◽  
Estimation Of Variance

The data on first lactation and lifetime performance records of 501 Nili-Ravi were collected for a period from 1983 to 2017 (35 years) maintained at ICAR-Central Institute for Research on Buffaloes, Sub-Campus, Nabha, Punjab. The data were analyzed to calculate heritability, genetic and phenotypic correlation for first lactation traits, viz., Age at First Calving (AFC), First Lactation Total Milk Yield (FLTMY), First Lactation Standard (305 days or less) Milk Yield (FLSMY), First Peak Milk Yield (FPY), First Lactation Length (FLL), First Dry Period (FDP), First Service Period (FSP) and First Calving Interval (FCI), Herd Life (HL), Productive Life (PL), Productive Days (PD), Unproductive Days (UD), Breeding Efficiency (BE), Total Lifetime Milk Yield (Total LTMY), Standard Lifetime Milk Yield (Standard LTMY), Milk Yield Per Day of Productive Life (MY/PL), Milk Yield Per Day of Productive Days (MY/PD), and Milk Yield Per Day of Herd Life (MY/HL). For estimation of variance component and heritability separately for each trait, the uni-trait animal model was equipped, whereas to estimate genetic and phenotypic correlations between traits, bi-trait animal models were fitted. The estimates of heritability for production and reproduction traits of Nili-Ravi were medium, i.e., 0.365 ± 0.087, 0.353 ± 0.071, 0.318 ± 0.082, 0.354 ± 0.076, and 0.362 ± 0.086 for FLSMY, FDP, FSP, FCI, and AFC, respectively. The estimates of heritability were low, i.e., 0.062 ± 0.088, 0.123 ± 0.090, 0.158 ± 0.090, 0.155 ± 0.091, and 0.129 ± 0.091 for HL, PL, PD, Total LTMY, and Standard LTMY and high, i.e., 0.669 ± 0.096 for BE. Genetic correlation for FLTMY was high with FLL (0.710 ± 0.103), and genetic correlation of FLTMY was high and positive with HL, Total LTMY, MY/PL, and MY/PD while low and positive with PL. Genetic correlation of AFC was low and negative with PL, PD, UD, BE, Total LTMY, Standard LTMY, MY/PL, and MY/PD and negative with MY/HL. Significant positive phenotypic association of FPY was seen with FLTMY, FLSMY, FLL, AFC, HL, Total LTMY, and Standard LTMY. Higher heritability of first lactation traits especially FPY suggests sufficient additive genetic variability, which can be exploited under selection and breeding policy in order to improve overall performance of Nili-Ravi buffaloes.

scholarly journals The differences in production of Holstein Friesian and Holstein Friesian x Norwegian Red F1 crossbreeds

2020 ◽  
Vol 70 (4) ◽  
pp. 284-291
Author(s):  
Stipo Benak ◽  
Tina Bobić ◽  
Vesna Gantner ◽  
Domagoj Eman ◽  
Maja Gregić ◽  
...  
Keyword(s):  
Milk Yield ◽  
Lower Number ◽  
Conception Rate ◽  
Least Square ◽  
Production Traits ◽  
Retained Placenta ◽  
Service Period ◽  
Holstein Friesian ◽  
Fertility Traits ◽  
Insight Into

The aim of this study was to compare the production, health and fertility traits of Holstein Friesian (HF) and their F1 crosses with Norwegian Red cows (HF x NRF F1). Only the production data’s from finished first lactations of the total 57 HF x NRF F1 crosses and 401 HF cows, and for health and fertility traits of 120 HF x NRF F1 crosses and 255 HF cows, were used. The differences in production traits were tested by a least square means using the GLM procedure in SAS. The milk yield in both lactation (standard 305 days and full lactation) were higher in HF x NRF F1 crosses for approximately 400 kg, but without significance. The differences in production traits (fat and protein (kg and %)) were significant (p&lt;0.001; p&lt;0.05) with higher values for HF x NRF F1 crosses comparing to HF cows, with exception of protein in full lactation. Regarding the fertility traits, HF x NRF F1 crosses had a better conception rate (+1.58 %), a lower number of the insemination per pregnancy (-0.43) and a shorter duration of the service period (-22.2) comparable to HF cows. F1 crosses had better health traits (with except for hoofs problem) comparing to HF cows, they had less cows with mastitis (-11.9 %), ketosis (-0.5 %), retained placenta (-4.8 %) and dislocation of the abomasum (-1.0 %), respectively. Because of the fact that all results were obtained on the basis of data from the first lactation cows, it is necessary to do more analyses of all studied traits in subsequent lactations, in order to get a much clearer insight into the studied issues.

scholarly journals Determining the Factors Affecting 305-Day Milk Yield of Dairy Cows with Regression Tree

2021 ◽  
Vol 9 (6) ◽  
pp. 1154-1158
Author(s):  
Serdar Genç ◽  
Mehmet Mendes
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Regression Tree ◽  
Dry Period ◽  
Data Set ◽  
Tree Analysis ◽  
Factors Affecting ◽  
Lactation Length ◽  
Regression Tree Analysis ◽  
Service Period

The purpose of this study was to determine the factors affecting the 305-day milk yield of dairy cattle by using Regression Tree Analysis (RTA). The data set of this study consisted of 8 different cattle breeds grown in Turkey. Breed (B), Province (P), Lactation Length (LL), Service Period (SP), Dry Period (DP), Parity (PR), Calving Year (CY), Calving Age (CA) and Calving Month (CM) were used to predict the 305-day milk yield. Results of RTM showed that the usage of this method might be appropriate for determining the important factors that would be able to affect the 305-day milk yield (R2=71.3%). It was seen that the most important factors affecting the 305-day milk yield were the Breed, Lactation Length, Province, and Parity. Therefore, those selected factors were more efficient than the others in predicting the 305-day milk yield. RTA results also indicated that the lowest milk yield was estimated for Jersey, Jersey Crossbred, and Yerli Kara. Among the highest 305-day milk yield cows, the milk yield estimates of the cows in the second, third, fourth, fifth, and the sixth parities were found significantly higher than that of the cows in the first and seventh parities.

Influence of environment and heredity on the shape of lactation curves in Sahiwal cows

1979 ◽  
Vol 92 (2) ◽  
pp. 393-401 ◽  
Author(s):  
M. K. Rao ◽  
D. Sundaresan
Keyword(s):  
Milk Yield ◽  
Gamma Function ◽  
Yield Traits ◽  
Gangetic Plains ◽  
Northern India ◽  
Lactation Length ◽  
Service Period ◽  
Lactation Curve ◽  
Sahiwal Cows ◽  
Genetic And Phenotypic Correlations

SummaryThe shape of the lactation curve of Sahiwal cows was estimated by fitting a gamma function to 2034 lactations made by 681 cows at two farms in Indo-Gangetic plains of Northern India. The persistency of lactation yield was estimated by three methods: P1, the coefficient of variation among weekly yields; P2, ratio of lactation yield to peak yield, and P3, from the gamma function.The gamma function fitted to the weekly yields explained 75·9% of the variation. A least-squares analysis of different traits associated with lactation curve shape indicated significant influence of parity, period and season of calving on the lactation curve. The lactation yield, peak yield and daily yield up to the peak were highest for winter calvers, while persistency was highest for monsoon calvers. The milk yield traits showed an increase up to the second or third lactation, while the persistency decreased from the first to eighth lactation with increase in parity order. The lactation curve was also more flat in the first lactation than later. The lactation yield and persistency increased with increase in age at calving independent of parity order. The lactation yield, peak yield, persistency and daily yield up to the peak were positively correlated with service period, lactation length and calving interval.The heritability and repeatability estimates of different traits, genetic and phenotypic correlations of lactation milk yield with different persistency measures indicated that P2 is a better measure of persistency. The peak yield could be used as a criterion of selection in early lactation to bring about improvement in lactation yield and persistency.

scholarly journals Comparison of service period and lactation milk yields in dairy cows with single- and twin-calving

2018 ◽  
Vol 72 (2) ◽  
pp. 112-121
Author(s):  
Maximiliane Dörstelmann ◽  
Melinda Ari ◽  
Zsolt Becskei ◽  
László Gulyás ◽  
András Gáspárdy
Keyword(s):  
Milk Yield ◽  
Fixed Effects ◽  
Large Scale ◽  
Contradictory Result ◽  
Production Traits ◽  
Length Of Service ◽  
Service Period ◽  
Holstein Friesian ◽  
Significant Difference ◽  
Friesian Cattle

Introduction. Twin-calving occurs in 3 to 5 % of Holstein Friesian cattle, and it is mostly followed by reproductive and economic problems. This evaluation will compare the service period and the milk yield in cows with single and twin births at a Hungarian large-scale farm. Materials and Methods. The data were collected from 4223 cows between 2000 and 2010. In Cox?s regression model (service period) and general linear model (milk production traits), the type of calving (single/twin), the construction code (referring to the Holstein Friesian blood proportion), the season and number of calvings were fixed effects, and furthermore, the year of calving was a covariate. Results and Conclusions. This analysis showed there was no significant difference in the length of service period (SP) between the two groups of cows. The total lactation milk yield produced a meaningful difference in performance: single-calving cows had greater milk yield (p=0.013), fat yield (p=0.030), and protein yield (p=0.028) than cows with twins. The standard lactation milk yield showed the same tendency at a stronger significance and a lower level of production. This unexpected and contradictory result in service period could be explained by the much longer period of open days in twinning cows, known from previous research. Regarding milk yield, an involuntary decrease for cows after twin calving was confirmed.

scholarly journals Genetics and Phenotypic Analysis of First Lactation Production, Reproduction and Part Lactation Traits in Frieswal Cattle

2021 ◽  
Author(s):  
Rajeev . ◽  
Ravinder Kumar
Keyword(s):  
Milk Yield ◽  
Cattle Breed ◽  
Phenotypic Correlation ◽  
Dry Period ◽  
Phenotypic Analysis ◽  
Climatic Regions ◽  
Lactation Length ◽  
Service Period ◽  
Total Milk ◽  
Reproduction Traits

Background: The Frieswal cattle a crossbred cattle breed having 62.50 per cent of exotic (inheritance) having total lactation milk yield of 4000 Kg with average lactation length 300 days (PDC Annual Report, 2015-16). Presently, the Frieswal Animal is mainly maintained at 36 Military Farms located in various agro-climatic regions in the country. Methods: The present study was undertaken on first Part lactation production, reproduction and part lactation records of 1470 Frieswal cows maintained over a period of 10 years (2003-2012) two military farms viz Meerut and Ambala at CIRC, Meerut. Result: The estimate the heritability of production and reproduction traits were 0.29 ±0 .098,0.142±.081, 0.130±0.079, 0.087 ±.074, 0.631 ± 0.255, 0.345 ± 0.247 and 0.100 ± 0.153 for standard 305 days milk yield, age of first calving (AFC), First lactation total milk yield (FLMY), First lactation 305-day or less milk yield (FL305DMY), First lactation length (FLL), Inter calving interval (ICI), First dry period (FDP), First Service Period (FSP), respectively. All the genetic and phenotypic correlation among different production and reproduction traits were high and positive. The estimates of heritability of first lactation individual part monthly yields in Frieswal cattle were found to be 0.100 ± 0.069, 0.105 ± .070, 0.100 ± 0.069, 0.112 ± 0.071, 0.204 ± 0.086, 0.160±0.079, 0.176 ± 0.081, 0.221 ± 0.088, 0.213 ± 0.087 and 0.192 ± 0.09, respectively. 

Genetic and non-genetic factors affecting productive and reproductive traits in Deoni cattle

2018 ◽  
Author(s):  
Sukanta Basak ◽  
D. N. Das ◽  
U. T. Mundhe
Keyword(s):  
Milk Yield ◽  
Genetic Factors ◽  
Cattle Breed ◽  
Reproductive Traits ◽  
Phenotypic Correlation ◽  
Dual Purpose ◽  
Factors Affecting ◽  
Lactation Length ◽  
Service Period ◽  
Dual Purpose Cattle

The present study was carried out in Deoni, the dual purpose cattle breed of Southern India, maintained at NDRI herd, SRS, Bengaluru. Mean phenotypic performances for the traits of age at first calving (AFC), first service period (FSP), first lactation milk yield (FLMY) and first lactation length (FLL) were estimated as 42.90 ± 0.49 months, 179.00 ± 6.3 days, 643.08 ± 25.16 kg and 178.24 ± 4.41 days respectively. Significant effect of parity was found on AFC and FSP. Effect of period of birth, period of calving and season of calving was found to be significant on FSP. Significant effect of period of birth, period of calving, classes of AFC and FLL were found on FLMY. The heritability of first lactation milk yield was estimated as 0.38 ± 0.29. Phenotypic correlation of FLMY with FLL (0.88 ± 0.02) was found to be highly significant (p Lass Than 0.01).

Study on ages at first mating and calving of Murrah buffaloes in hot and humid climate of Tamil Nadu, India

2015 ◽  
Author(s):  
A. K. Thiruvenkadan ◽  
S. Panneerselvam ◽  
N. Murali
Keyword(s):  
Milk Yield ◽  
Tamil Nadu ◽  
Coastal Region ◽  
Dry Period ◽  
Humid Climate ◽  
Age At First Calving ◽  
Murrah Buffaloes ◽  
Lactation Length ◽  
Service Period ◽  
Consequent Increase

Data on ages at first mating and first calving of Murrah buffaloes to identify the effect of various non-genetic factors on these traits. Period and season were the fixed environmental effects considered for both the traits studied. The overall least-squares means for ages at first mating and calving were 1222.3 ± 11.0 and 1578.7 ± 20.3 days respectively. Period had highly significant (Pe at first calving with peak yield, days to attain peak yield, 305-day milk yield, lactation length, lactation milk yield, milk yield per day of lactation, service period, calving interval, dry period and number of services per conception were -0.214 ± 0.32, 0.013 ± 0.31, 0.089 ± 0.33, 0.584 ± 0.47, 0.166 ± 0.35, -0.177 ± 0.30, 0.576 ± 0.53, 0.563 ± 0.55, 0.276 ± 0.49 and 0.944 ± 0.83 respectively. The study revealed that the ages at first mating and calving observed in Murrah buffaloes at coastal region of Tamil Nadu is comparable to those reported in its breeding tract and elsewhere in India. A negative genetic correlation between age at first calving and milk yield per day of lactation indicated that the selection based on milk yield per day of lactation would lead to reduction in age at first calving with consequent increase of milk yield per day of lactation in future generations.

scholarly journals Milk Production and Reproduction Performance of Non-descript Buffaloes in Konkan Region

2021 ◽  
Author(s):  
P.D. Chendge ◽  
S.U. Waghmare ◽  
S.P. Harane ◽  
S.L. Khatke ◽  
D.J. Bhagat ◽  
...  
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Buffalo Milk ◽  
Dry Period ◽  
Survey Period ◽  
Lactation Length ◽  
Service Period ◽  
Reproduction Performance ◽  
Daily Milk Yield ◽  
Daily Milk

Background: Buffaloes are economically important in particular region and also buffalo milk are nutritionally rich. In Konkan region, buffalo should be rarely used only to get female buffalo for milk production. To improve the non-descript buffalo population for milk production and reproduction performance. Methods: During survey period January, 2021 to February, 2021, record of 400 non-descript buffalo, 270 non-descript buffalo having more than 4 years age old to be selected. Result: The average daily milk yield, peak milk yield, total lactation milk yield, lactation length and dry period in non-descript buffaloes were 6.45±0.16 liters, 7.6±0.14 liters, 2007.66±45.83 liters, 302.86±0.34 days and 146.66±0.48 days, respectively. The average age at first calving, calving interval, service period, gestation period and number of calving were 45.96±0.18 months, 449.30±0.53 days, 128.86±0.31 days, 303.66±0.49 days, 2.72±0.12 numbers, respectively and autumn season of calving was more than another season.

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