Correlation between extremes age at first calving with their productive and reproductive performances in Indian Murrah buffaloes (Bubalusbubalis)

2018 ◽  
Author(s):  
Ranjeet Verma ◽  
Inderjeet Singh ◽  
Ashok K. Balhara ◽  
Varij Nayan ◽  
Rakesh Kumar Sharma ◽  
...  
Keyword(s):  
Calving Interval ◽  
Dry Period ◽  
Important Indicator ◽  
Age At First Calving ◽  
Murrah Buffaloes ◽  
Lactation Length ◽  
Service Period ◽  
Performance Traits ◽  
Group 2 ◽  
Group 1

The dairy economics is greatly affected by the age at first calving as it is an important indicator of precocity and fertility. The present study was carried out to deduce the important productive and reproductive performance traits related to their extremes age at first calving in Murrah buffaloes. Recorded the data of reproductive and productive performances trait of Murrah buffaloes maintained at the animal farm section, ICAR-Central Institute for Research on Buffaloes, Hisar, India during the period of last fifteen year (2001-15). The data of 2753 buffaloes were screened out, on the basis of age at first calving (AFC) categorized into two extreme group. Only 88 out of 2753 buffaloes showed the extremes AFC and categorized as group 1 (n=17 in first parity, 12 in second parity) and group 2 (n=71 in first parity, 36 in second parity) having £36 and ³48 months of AFC respectively. The extreme AFC with their performance traits viz. service period, calving interval, dry period, lactation length and milk yields were included in the analysis. The mean service period, calving interval, dry period was lower in group 1 whereas lactation length and milk yields no differences in between groups. The low milk production was observed in first lactation irrespective to their groups. The extreme AFC was not significantly associated with their performance traits (service period, calving interval, dry period, lactation length and milk yields) in both within and between groups (p >0.05) whereas service period significantly associated with calving intervals (p less than 0.01).

Effect of Season and Age at First Calving on Early Performance Traits in Murrah Buffaloes

2020 ◽  
Vol 6 (02) ◽  
Author(s):  
GURPREET KOUR ◽  
RAMAN NARANG ◽  
AMANDEEP SINGH
Keyword(s):  
Genetic Factors ◽  
Calving Interval ◽  
Dry Period ◽  
Age At First Calving ◽  
Murrah Buffaloes ◽  
Lactation Length ◽  
Service Period ◽  
Productive Traits ◽  
Early Performance ◽  
Animal Sciences

The present investigation was carried on 659 Murrah buffaloes, sired by 188 bulls, maintained at Directorate of Livestock Farms, Guru AngadDev Veterinary and Animal Sciences University, Ludhiana, for the duration of 27 years (1991-2017). The purpose of this study was to investigate the effect of non-genetic factors like season and age at first calving on early reproductive and productive traits like age at first calving (AFC), first service period (FSP), first calving interval (FCI) and age at puberty (AAP), 305 day milk yield (305MY), first lactation length (FLL), first peak yield (FPY), first days to attain peak yield (DPY) and first dry period (FDP). Season of calving had highly significant influence on FSP, FCI and FDP, significant effect on AFC, AAP, 305MY, FLL and FPY and non-significant effect on DPY. Age at first calving had non-significant effect on all the studied traits.

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.

Estimation of Phenotypic and Genetic Trends in Economic Traits of Murrah Buffaloes

2020 ◽  
Author(s):  
Gurpreet Kour ◽  
Raman Narang ◽  
Neeraj Kashyap ◽  
Simarjeet Kaur ◽  
Simrinder Singh Sodhi
Keyword(s):  
Economic Traits ◽  
Dry Period ◽  
Murrah Buffaloes ◽  
Lactation Length ◽  
Smith Method ◽  
Service Period ◽  
Selection Indices ◽  
Dairy Animals ◽  
Selection Of ◽  
Genetic Trends

Background: Notable advancements in the selection indices have led to the development of exceptional breeding strategies, which have eventually led to the selection of elite dairy animals. The comparison of trends is facilitated by their estimation which permit the assessment of progress in a particular trait. The purpose of this study was to investigate genetic trends in economic traits of Murrah buffaloes, which is predominantly present as a high milk producer using the regression method. The study was designed to estimate the phenotypic, genetic and environmental trends, which represent the changes accrued over time and hence, determines the efficiency of breeding programme. Methods: The present study was conducted on 659 Murrah buffaloes, sired by 188 bulls, over a period of 27 years (1991-2017). The economic traits studied were first lactation milk yield (FLMY), first lactation length (FLL), age at first calving (AFC), first calving interval (FCI), first service period (FSP) and first dry period (FDP). The phenotypic trends were obtained as regression of population performance on year and the genetic trends were obtained by Smith method I and II. Result: The results revealed that the phenotypic trends obtained were significant and desirable for all the traits except for first lactation length, which was non-significant. The standard errors obtained by Smith method-I were higher than those obtained from method-II. As the Smith method-II avoids year to year fluctuations in the environment and those of contemporaries, it gives more realistic estimate as compared to the first method with lower standard error.

scholarly journals Evaluation of Assamese buffaloes considering important economic traits under field conditions in their home tracts

2020 ◽  
Vol 12 (1) ◽  
pp. 19-24
Author(s):  
Shafiqul Islam ◽  
Safeer Alam ◽  
Gurjeet Kaur ◽  
Amulya Gogai
Keyword(s):  
Field Conditions ◽  
Gestation Period ◽  
Economic Traits ◽  
Dry Period ◽  
Good Source ◽  
Age At First Calving ◽  
Lactation Length ◽  
Large Size ◽  
Service Period ◽  
Reproduction Traits

The Assamese buffaloes are being reared by the farmers/breeders for milk, meat and for draught purposes. These buffaloes are known for higher fat contents in their milk (8.5 percent on an average) and are famous in the market with a great demand and are known as “Khuti milk”. They are good source of livelihood for breeders and the graziers both in its breeding tract and have attracted researchers to consider the study of some important economic traits under field conditions. The present study was organized and considered the data on a total of 324 Assamese buffaloes distributed over three districts namely Kamrup, Nagaon and Darrang in Assam covering 35 khutis (open herds) during the year 2015-16   eighteen months. The lactation milk yield of Assamese buffalo was observed as 448.38±1.67 kg with a lactation length of 237.06±0.74 days and the peak yield and days to attain were measured as 3.41±0.02 kg and 54.16±0.19 days respectively. The reproduction traits like age at first calving, gestation period, service period and inter-calving period were considered for the study based on the breeders’ interview using pre-structured formats. The age at first calving was recorded as 52.28±0.81 months, the gestation period was observed as 323.10±0.68 days with an inter-calving period of 465.70±1.67 day. The service period and the dry period for these buffalo was 171.34±0.82 and 252.84±1.47 days respectively. The production and reproduction performance of Assamese buffaloes need special attention to be addressed for further improvements to help a large size of population of Assam, who are entirely depending for their livelihood on these valuable AnGR (buffaloes) of Assam.

scholarly journals Factors affecting first lactation performance of Sahiwal cattle in Pakistan

2008 ◽  
Vol 51 (4) ◽  
pp. 305-317 ◽  
Author(s):  
Z. U. Rehman ◽  
M. S. Sajjad Khan ◽  
S. A. Bhatti ◽  
J. Iqbal ◽  
A. Iqbal
Keyword(s):  
Milk Yield ◽  
Lactation Performance ◽  
Genetic Trend ◽  
Age At First Calving ◽  
Factors Affecting ◽  
Lactation Length ◽  
Service Period ◽  
Total Milk ◽  
Sahiwal Cattle ◽  
Performance Traits

Abstract. To study the environmental and genetic factors affecting productive and reproductive traits, data on 5,897 cows from five main recorded herds (for 1964–2004) of Sahiwal cattle in Pakistan were used. A general linear model was applied on the data. The 305-day milk yield, total milk yield, lactation length, age at first calving, dry period, calving interval and service period averaged 1,393 ± 12 kg, 1,429 ± 11 kg, 235 ± 2, 1,390 ± 4, 244 ± 3, 464 ± 3 and 1,78 ± 3 days, respectively. The age at first calving was effected by herd, year and season of birth. The 305-day and total milk yields were affected by herd, year, season of calving, age at first calving, service period and lactation length while all other first lactation traits were affected by herd, year, season of calving and 305-day milk yield. Animal model heritability estimates for these traits were 0.11 ± 0.029, 0.11 ± 0.028, 0.09 ± 0.027, 0.02 ± 0.019, 0.05 ± 0.019, 0.12 ± 0.027 and 0.04 ± 0.020, respectively. Rate of decline in first lactation milk yield was 7 l per year over the last 35 years with genetic trend close to zero. Lactation length and service period decreased and age at first calving increased by 2, 1 and 6 days per year, respectively. Herd differences for most of the traits were significant. Improved feeding and management may improve performance traits of Sahiwal cattle. Accurate recording of pedigrees and performance traits would help improve genetic param

scholarly journals The reproductive and milk performance merit of Butana cattle in Sudan

2005 ◽  
Vol 48 (5) ◽  
pp. 445-459 ◽  
Author(s):  
L. M.-A. Musa ◽  
M.-K. A. Ahmed ◽  
K. J. Peters ◽  
B. Zumbach ◽  
K. E. A. Gubartalla
Keyword(s):  
Milk Yield ◽  
Research Station ◽  
Calving Interval ◽  
Dry Period ◽  
Age At First Calving ◽  
Lactation Length ◽  
Parity Number ◽  
Heritability Estimates ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract. Data from the Butana herd of Atbara Livestock Research Station were analyzed for the period 1949–1999. The least squares means for age at first calving, calving interval, milk yield per lactation, daily milk yield, lactation length and dry period were 45.05 ± 3.56 months, 382.38 ± 8.30 days, 1662.57 ± 108.96 kg, 6.10 ± 0.40 kg, 268.17 ± 5.56 days and 119.10 ± 8.30 days, respectively. The analysis of variance revealed that the sire and parity number influenced the studied traits, while year-season of calving influenced the milk yield per lactation, daily milk yield and lactation length. Linear and quadratic regressions on lactation length significantly influenced milk yield per lactation and daily milk yield. Heritability estimates for age at first calving, calving interval, milk yield per lactation, daily milk yield, lactation length and dry period were 0.19 ± 0.07, 0.09 ± 0.03, 0.26 ± 0.06, 0.27 ± 0.07, 0.04 ± 0.02, and 0.09 ± 0.03, respectively. This study highlighted the importance of conserving the indigenous dairy cattle breeds for future generations. The presence of significant variation and the corresponding heritability estimates give promise of reasonable genetic improvement under selective breeding with respect to milk yield characters.

scholarly journals Milk yield and reproductive performance of Friesian cows under Sudan tropical conditions

2007 ◽  
Vol 50 (2) ◽  
pp. 155-164 ◽  
Author(s):  
A. z. Abdel Gader ◽  
M.-K. A. Ahmed ◽  
L. M.-A. Musa ◽  
K. J. Peters
Keyword(s):  
Milk Yield ◽  
Calving Interval ◽  
Dry Period ◽  
Age At First Calving ◽  
Lactation Length ◽  
Tropical Conditions ◽  
Days Open ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Friesian Cows

Abstract. The data obtained from the dairy herd of the Arab Company for Agricultural Production and Processing (ACAPP) in a semi arid area 40 km south of Khartoum involved 337 cows with a total of 1049 records from 16 years between 1986 and 2002. The least squares means for age at first calving, calving interval, days open, lactation milk yield, daily milk yield, lactation length and dry period were 29.76±0.40 months, 433.12 ± 6.70 days, 167.79±7.08 days, 3475.53±78.89 kg, 12.29±0.28 kg, 294.10±3.62 days and 164.08 ± 6.70 days, respectively. The analysis of variance showed that the parity number had significant (p<0.05) influences on all studied traits, while year-season of calving influenced (p<0.05) age at first calving, milk yield per lactation and daily milk yield. The sire of cow influenced (p<0.05) lactation yield, daily yield, lactation length and days open. The effects of linear and quadratic regressions of both lactation yield and daily yield on length of lactation were also highly significant (p<0.01). Heritability estimates of age at first calving, calving interval, milk yield per lactation, daily milk yield, lactation length and dry period were generally low (0.098±0.104, 0.047±0.046, 0.130±0.042, 0.123±0.041, 0.172±0.062 and 0.044±0.031, respectively) except the heritability of days open which was 0.51±0.37. The productivity of the herd in this study which averaged 12.3 kg/cow/day was much lower than the expected productivity of Holstein Friesian cows, which reflects the negative impact of the prevalent environment in the Sudan. More records and economic data are required to examine the economic feasibility of raising pure Friesians under Sudan conditions.

scholarly journals Artificial induction of lactation in cattle

2010 ◽  
Vol 39 (10) ◽  
pp. 2268-2272 ◽  
Author(s):  
Priscila Ribeiro Corradi Freitas ◽  
Sandra Gesteira Coelho ◽  
Euler Rabelo ◽  
Ângela Maria Quintão Lana ◽  
Maria Alexandra Torres Artunduaga ◽  
...  
Keyword(s):  
Prostaglandin F2α ◽  
Estradiol Benzoate ◽  
Milk Composition ◽  
Regression Analyses ◽  
Dry Period ◽  
Recombinant Bovine Somatotropin ◽  
Artificial Induction ◽  
Group 2 ◽  
Scheme Evaluation ◽  
Group 1

Forty Holstein cows, with previous reproductive problems, empty, at second or more lactations, with an average milk production of 9,200 kg in the previous lactation and a dry period over than 50 days were distruibuted in two groups to evaluate two protocols of milking induction. It was given to group 1, on days one, eight and 21 recombinant bovine somatotropin-bSTr (500 mg); from day two to eight, estradiol cypionate (0.075 mg/kg BW) and medroxi progesterone acetate (0.25 mg/kg BW); from days nine to 15, estradiol cypionate (0.037 mg/kg BW); on day 19, prostaglandin F2α (0.530 mg) and from days 19 to 21, isoflupredone acetate (0.05 mg/kg BW). Group two was given, on days one, eight and 21, bSTr (500 mg), from days 2 to 15, estradiol benzoate (0.071 mg/kg BW), from days two to eight, acetate of medroxi progesterone (0.25 mg/kg BW), day 19, prostaglandin F2α(0.530 mg) and from days 19 to 21 isoflupredone acetate, (0.05 mg/kg BW). Teats and udders of all cows were massaged for five minutes from day 17 to 21. Milking were carried out from the 22nd day of induction. After beginning of lactation, both groups were given bsTr (500 mg) every 14 days. It was used a complete random design with 20 replicates per treatment and a split-plot scheme. Evaluation of the protocols was carried out by using analyses of variance using Fisher´s test at 5% and production of milking per day using regression analyses. Milking was successfully induced in 85% of the animals. Animals from group 2 showed production mean 21.9 ± 12.9 kg of milk/day which was higher than group 1 mean 18.9 ± 11.5 kg of milk/day. There was no difference for milk composition in either groups. Twenty-nine cows were inseminated and 41.1% became pregnant.

Milk yield at first lactation, parity, and season of calving affect the reproductive performance of water buffalo cows

2020 ◽  
Vol 60 (8) ◽  
pp. 1073
Author(s):  
Héctor Nava-Trujillo ◽  
Robert Valeris-Chacin ◽  
Armando Quintero-Moreno ◽  
Juan Escalona-Muñoz
Keyword(s):  
Milk Yield ◽  
Reproductive Performance ◽  
Water Buffalo ◽  
Negative Energy ◽  
Calving Interval ◽  
Water Buffaloes ◽  
Group 4 ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Context Profitability of water buffalo systems depends on a calving interval (CI) &lt;400 days. Several factors affect the achievement of this target. However, milk yield at first lactation has received little attention. Aims Determine the effect of milk yield at first lactation, parity, season of calving and farm, on the length of CI and the probability of a CI ≤ 400 days in water buffaloes. Methods A retrospective analysis of milk yield at first lactation and reproductive records of 1459 water buffaloes was carried out. Milk yield was categorised as Group 1 (≤1090 kg), Group 2 (1090–1377 kg), Group 3 (1377–1684 kg) and Group 4 (&gt;1684 kg); parity was categorised as parity 1, 2 and ≥ 3; and month of calving was grouped into three seasons: December–March, April–July, and August–November. Data were analysed using linear and logistic mixed models. Key results CI increased from 425.3 days (95% CI: 418.8–431.8 days) in group 1 to 463.3 days (95% CI: 456–470.6 days) in group 4 (P &lt; 0.05), while the probability of having a CI ≤ 400 days decreased from 0.5 (95% CI: 0.46–0.54) to 0.26 (95% CI: 0.22–0.29), respectively (P &lt; 0.05). CI decreased from 466 days (95% CI: 460.8–471.3 days) in parity 1 to 410.5 days (95% CI: 405.2–415.8 days) in parity ≥3, whereas the probability of a CI ≤ 400 days increased from 0.26 (95% CI: 0.24–0.29) to 0.51 (95% CI: 0.47–0.54) respectively (P &lt; 0.05). Water buffaloes calving in August–November showed significantly shorter CI and, along with those calving between December–March, showed the highest probability of a CI ≤ 400 days. An interaction between milk yield at first lactation and parity on both outcomes was observed. Conclusions Shorter CI and higher probability of a CI &lt;400 days were associated with lower milk yields at first lactation, higher parity and calving between August–November. Higher milk yield at first lactation affected negatively the reproductive performance of water buffaloes, especially at parity 1 and 2. Implications These results highlight the importance of adequate nutritional management to allow water buffaloes to cope with the challenge of the postpartum negative energy balance and have a calving interval less than 400 days.

Milking performance of Blanco Orejinegro and Jersey crossbred cattle

1968 ◽  
Vol 70 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Lucia Pearson ◽  
R. K. Waugh ◽  
Bernardo Salazar ◽  
F. M. Botero ◽  
O. Acosta
Keyword(s):  
Milk Yield ◽  
Calving Interval ◽  
Crossbred Cattle ◽  
Cattle Industry ◽  
Age At First Calving ◽  
Low Level ◽  
Genetic Causes ◽  
Lactation Length ◽  
The Andes

SUMMARYSamples of a Colombian criollo breed of cattle, the Blanco Orejinegro, and contemporary onequarter Jersey crossbreds were kept on a farm in the Andes. Records were included of all calvings which occurred over an 8-year period, giving totals of 1357 lactations from 514 purebreds and 424 lactations from 137 crossbreds.Age at first calving was about 41 months for both breed groups. Cattle were milked twice daily by hand without calf at foot. Mean lactation yields were 220 kg (purebreds) and 612 kg (crossbreds). The repeatability and heritability of milk yield are estimated. Statistics are also given for lactation length, daily yield, calving interval and butterfat percentage. The effects on yield of age at first calving and calving year were negligible, but month of calving was important.It is concluded that the low level of performance was partly due to failure to eject milk without calf at foot, at least in the case of the purebreds, and that this was itself mainly due to genetic causes. The improvement in yield due to crossbreeding was not accompanied by a loss of other desirable traits. The development of the local cattle industry is discussed in the light of these results and the general characteristics of the region.

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