Lactation performance of purebred Arsi cows and Friesian × Arsi crosses under pre-partum and post-partum supplementary feeding regimes

1999 ◽  
Vol 68 (4) ◽  
pp. 625-633 ◽  
Author(s):  
M. Y. Kurtut ◽  
C. L. Tawah ◽  
J. E. O. Rege ◽  
Nega-Alemayehu ◽  
Mesfin-Shibre
Keyword(s):  
Milk Yield ◽  
Post Partum ◽  
Supplementary Feeding ◽  
Lactation Performance ◽  
Lactation Length ◽  
Feeding Regimes

AbstractA study was conducted at the Asella Station in the Arsi Region of Ethiopia to investigate the dairy performance of indigenous purebred Arsi and Friesian × Arsi crosses under different pre-partum and post-partum supplementary feeding regimes. A total of’343 first-lactation animals were involved in the experiment. Lactation performance was not significantly affected by pre-partum supplementation. Post-partum supplementary feeding significantly affected total lactation milk and butterfat yields of the crosses but not the purebred Arsi. Arsi crosses produced more milk (1873 (s.e. 65·1) v. 258 (s.e. 31·7) kg) and butterfat (92 (s.e. 4·0) v. 25 (s.e. 2·8) kg) than purebred Arsi. The crosses stayed in lactation longer (474 (s.e. 13·0) v. 179 (s.e. 15·4) days) than the latter. Purebred Arsi manifested much more variation in total lactation milk yield (CV: 1·27 v. 0·37), lactation length (0·91 v. 0·30) and butterfat yield (0·71 v. 0·42) than Arsi crosses. F1 crosses produced slightly more milk (+266 kg) and butterfat (+19·3 kg) but had shorter (-30 days) lactations than the backerosses.

scholarly journals Reproductivity, Productivity and Management System of Indigenous Buffalo (Bubalus bubalis) Cows in Costal Areas of Pirojpur and Borguna District of Bangladesh

2014 ◽  
Vol 24 (1-2) ◽  
pp. 117-122 ◽  
Author(s):  
MR Karim ◽  
MZ Hossain ◽  
MR Islam ◽  
MS Parvin ◽  
MA Matin
Keyword(s):  
Birth Weight ◽  
Milk Yield ◽  
Management System ◽  
Post Partum ◽  
Bubalus Bubalis ◽  
Gestation Length ◽  
Calving Interval ◽  
Lactation Length ◽  
Daily Milk Yield ◽  
Daily Milk

Twenty five buffalo cows of Mothbaria Upazila of Pirojpur district and another twenty five indigenous buffalo cows of Pathorghata Upazila of Borguna district of Bangladesh were randomly selected and interviewed to collect data on reproductivity (gestation length, birth weight, age of first calving, post partum heat and calving interval), productivity (lactation length and daily milk yield) and management system (general management, housing, feeding, calf rearing and treatment facilities) of indigenous buffalo cows using pre-tested questionnaire during the period from January to June 2010. The reproductive parameters including gestation length, birth weight, age of first calving, post partum heat and calving interval of Mothbaria Upazila of Pirojpur district were 319.56 ± 5.93 days, 24.28 ± 4 kilograms, 50.88 ± 1.71 months, 153.6 ± 6.13 days, 547.92 ± 10.88 days respectively whereas in case of Pathorghata Upazila of Borguna district these parameters were 319.12 ± 4.69 days, 24.12 ± 3.6 kilograms, 51 ± 1.8 months, 153.44 ± 6.78 days, 547.24 ± 14.32 days respectively. The productive parameters including lactation length and daily milk yield of Mothbaria Upazila of Pirojpur district were 286.12 ± 11.27 days and 3.33 ± 0.68 liters/day respectively while in case of Pathorghata Upazila of Borguna district these parameters 290.44 ± 10.92 days and 3.43 ± 0.744 liters/day respectively. So, reproduction and production are almost regular comparing with other published reports with the exception of age of first calving which is almost 12 months later than the buffaloes of other countries. It could be concluded that the buffalo owners of these areas do not follow any scientific method of buffalo husbandry; they just follow traditional rearing system. The farmers mostly use buffaloes for draught purpose in these costal areas.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19113 Progress. Agric. 24(1&2): 117 - 122, 2013

Devising a Selection Strategy for the Jamunapari Goat for Improving Lactation Performance

2021 ◽  
Author(s):  
Mahesh Shivanand Dige ◽  
P. K. Rout ◽  
S. Bhusan ◽  
G. R. Gowane
Keyword(s):  
Milk Yield ◽  
Selection Criterion ◽  
Selection Strategy ◽  
Yield Traits ◽  
Lactation Performance ◽  
Data Set ◽  
Yield Attributes ◽  
Lactation Length ◽  
Genetic Potential ◽  
Average Information

Abstract This study aims to evaluate the genetic potential of the Jamunapari goat and formulate a new selection strategy for improving the lactation traits. The data set included 4049 phenotypic records for lifetime milk yield at 90 days (MY90) and 140 days (MY140), total milk yield (TMY), and lactation length (LL) obtained from the progeny of 83 sires and 1643 dams between 1990 and 2019. Animal model employing average information restricted maximum likelihood (AIREML) was used to estimate genetic parameters for milk yield traits and LL. The direct additive heritability estimates for lifetime lactation traits, that used repeatability model were 0.10 ± 0.03, 0.08 ± 0.03 and 0.12 ± 0.02 for MY90, MY140 and TMY, respectively, while it was low for LL (0.06 ± 0.02). The repeatability estimates were moderate ranging from 0.17 to 0.22 for milk yield traits and LL, indicating persistent performance over the parities. Animal permanent environment influence (c2) was significant in milk yield attributes, whereas additive maternal genetic effects were absent. As the early selection criteria based on first parity records is essential, we analysed the data for the first parity separately and obtained moderate h2 estimates viz. 0.26 ± 0.05, 0.26 ± 0.06 and 0.25 ± 0.06 for MY90, MY140 and TMY, respectively. These estimates augurs further positive scope of selection in Jamunapari goats for higher milk yield. High and positive genetic correlation of MY90 with MY140 (0.97 ± 0.01) and TMY (0.91 ± 0.05) revealed the scope of using MY90 as the selection criterion.Based on these results, we recommend use of MY90 as a single trait selection criterion for genetic improvement of all lactation traits in Jamunapari goat.

The effect of three suckling regimes on the lactation performance of Cyprus fat-tailed, Chios and Awassi sheep and the growth rate of the lambs

1974 ◽  
Vol 18 (3) ◽  
pp. 293-299 ◽  
Author(s):  
M. J. Lawlor ◽  
A. Louca ◽  
A. Mavrogenis
Keyword(s):  
Growth Rate ◽  
Milk Yield ◽  
Growth Rates ◽  
Milk Replacer ◽  
Lactation Performance ◽  
Lactation Length ◽  
Awassi Sheep ◽  
Creep Feed ◽  
Total Milk ◽  
Before And After

SUMMARYNinety-nine ewes, 33 from each of the Cyprus fat-tailed, Chios and Awassi breeds, were used to compare the effects of three suckling regimes on lactation. These consisted of weaning the lambs at birth (W0), 2 days (W2) and 35 days (W35). The 35-day, 150-day and total milk yields, as well as lactation length, were measured for each group. The lambs weaned from the ewes at birth and 2 days were reared on ewe-milk replacer. The growth rate of these lambs was compared with that of the lambs being suckled by their dams, before and after weaning.In all cases the milk yields of the Chios and Awassi breeds of sheep were significantly higher (P<0·01) than those of the Cyprus fat-tailed. Within each breed the 35-day milk yields of the ewes suckling one lamb were significantly higher (P<0·01) than those of the ewes on the W0 or W2 treatments, which themselves did not differ significantly. While the 150-day milk yields of the W35 treatment were significantly higher than those of the W0 or W2 treatments, the differences between suckling regimes in terms of total milk yield and lactation length were not significant. It is concluded that differences in milk yield obtained on different suckling regimes are attributable solely to the length of time that the lambs are suckled by their dams.Prior to weaning the growth rate of the lambs given the ewe-milk replacer was significantly lower than that of the lambs suckled by their dams. There were no differences in the growth rates of these groups of lambs when both were fattened on a creep feed after weaning.

Oxytocin release and lactation performance in Syrian Shami cattle milked with and without suckling

2005 ◽  
Vol 73 (1) ◽  
pp. 28-32 ◽  
Author(s):  
Shehadeh H Kaskous ◽  
Daniel Weiss ◽  
Yassin Massri ◽  
Al-Moutassem B Al-Daker ◽  
Ab-Dallah Nouh ◽  
...  
Keyword(s):  
Milk Yield ◽  
Post Partum ◽  
Lactation Performance ◽  
Machine Milking ◽  
Oxytocin Release ◽  
Daily Milk Yield ◽  
Daily Milk

Oxytocin (OT) release and lactation performance in primiparous Syrian Shami cows were evaluated in response to two different machine milking regimes. Six cows were milked in the presence of the calves (PC) and subsequently suckled, whereas six cows were exclusively machine milked without the presence of their calves (WC) until day 91 post partum. Milk yield and milk constituents were determined weekly. The degree of udder evacuation was determined by the succeeding removal of residual milk. PC released OT during the milking process, whereas in WC no OT release was detected throughout the milking process. Consequently, the residual milk fraction was much lower in PC than in WC (11% v. 58%, P<0·05) and daily milk yield until day 91 post partum was higher in PC than in WC (12·6±0·3 v. 7·1±0·4 kg, P<0·05). In conclusion, Syrian Shami cattle are not suitable to be exclusively machine milked without the presence of their calves.

The effect of suckling regime on growth rate and lactation performance of the Cyprus Fat-tailed and Chios sheep

1972 ◽  
Vol 15 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Avraam Louca
Keyword(s):  
Growth Rate ◽  
Adverse Effects ◽  
Milk Yield ◽  
Average Daily Gain ◽  
Live Weight ◽  
Lactation Performance ◽  
Lactation Length ◽  
Chios Sheep ◽  
Daily Gain

SUMMARYSeventy-two Cyprus Fat-tailed and Chios ewes with their lambs were used over a 2-year period to study the effects of three suckling regimes on the lactation performance of ewes and growth rate of lambs. The regimes studied were continuous or 24-hr a day suckling, 12-hr suckling and no suckling. The lambs were weaned at the age of 10 weeks. All the ewes, including those suckling, were handmilked throughout the trial twice daily.Highly significant differences in milk yield (milk sucked by lambs plus milk withdrawn by hand) and lactation length were found between the Fat-tailed and Chios ewes, the respective average milk yields being 159 and 265 kg and the corresponding lactation lengths, 158 and 209 days. There were no significant differences between breeds in the live weight or average daily gain of lambs up to the age of 20 weeks. Suckling for 12 rather than 24 hr a day had no adverse effects on the milk yield of ewes or the growth rate of lambs. The no-suckling regime, however, adversely affected milk yield and lactation length but the effects were less pronounced for the Chios breed.

Rebreeding activity in milking Awassi ewes under semi-arid conditions

1989 ◽  
Vol 49 (1) ◽  
pp. 89-93 ◽  
Author(s):  
R. Kassem ◽  
J. B. Owen ◽  
I. Fadel
Keyword(s):  
Milk Yield ◽  
Post Partum ◽  
Hormone Treatment ◽  
Lactation Length ◽  
Arid Conditions ◽  
Timing Of Treatment ◽  
Semi Arid

ABSTRACTPost-partum interval to oestrus and conception was studied in relation to previous and current lactation (milk yield and lactation length), age of ewe and treatment with intravaginal sponges in a total of 186 Awassi ewes lambing in December/January. In the first trial, 62% of ewes, tested for oestrus twice a day with vasectomized rams until the end of May, showed oestrus between 1 and 170 days after lambing with a mean interval of 83 (s.d. 31·9) days. Neither current nor previous lactation had important effects on the rebreeding interval (P > 0·05). In another trial where ewes were exposed continuously to fertile rams until the end of March, 50% showed oestrus with a mean interval of 56 (s.d. 23·7) days (range 33 to 113 days). Of those showing oestrus, 86% conceived with a mean post-partum interval of 70 (s.d. 33·0) days (range 33 to 133 days). Lactation yield had no significant effect on the lambing-to-oestrus interval (P > 0·05) but ewes with longer lactations showed longer lambing-to-conception intervals (P > 0·01). Treatment with progesterone-impregnated vaginal sponges at 1, 2 and 3 months post partum showed an increase in the percentage of ewes showing oestrus from 35% to 75% and in those conceiving from 25% to 70% as the timing of treatment increased from 1 to 3 months post partum. It is concluded that lambing three times in 2 years is biologically feasible and that hormone treatment can facilitate its operation in practice.

scholarly journals Evaluation of the production characteristics of the Jamunapari goat and its adaptability to farm conditions in Bangladesh

1970 ◽  
Vol 27 (1) ◽  
pp. 26-35 ◽  
Author(s):  
MR Hassan ◽  
MAI Talukder ◽  
S Sultana
Keyword(s):  
Body Weight ◽  
Litter Size ◽  
Milk Yield ◽  
Post Partum ◽  
Milk Composition ◽  
Gestation Length ◽  
Average Growth ◽  
Stage Of Lactation ◽  
Lactation Length ◽  
Average Body

The growth rate, milk yield, milk composition and reproductive efficiency ofJamunapari goats were studied under semi-intensive conditions. Animals were allowedto graze for 6-7 hours and concentrate (17% CP, 11 MJ/kg DM) at 400g/head/day wasoffered twice daily. No body measurement was different in male and female goats. Theudder was capacious but pendulous. Testis length, breadth and scrotal circumferencewere 17.3 ± 1.5, 11.5 ± 1.7 and 42.4 ± 2.0 cm, respectively. The mean body weight at birthand at 12 months was 1.6 and 21.4 kg, respectively. The average growth rates of male andfemale kids were 59.4 and 48.2g/day, respectively. The overall rate of weight gain washighest in second month and lowest in 11th month. Highest milk yield was in secondmonth and lowest in the fifth month after kidding. Lactation length was 135.4 ± 14.9 and143.9 ± 13.2 days for does suckling one and two kids, respectively. Milk intake to growthratio was 15.6 ± 0.2 and 12.5 ± 0.3 for the litter size of one and two, respectively. Highestmilk fat, lactose and solids not fat (SNF) were in the later stage of lactation, whereasprotein and minerals were similar throughout the lactation. The average age at firstoestrus, age at first pregnancy and age at first kidding were 354.8 ± 17.1, 395.4 ± 29.6 and548.6 ± 68.1 days, respectively. The average number of services per pregnancy was 1.4.The gestation length was 152.8 ± 17.6 days. The average body weight just after kiddingand placenta weight were 26.7 kg and 342.4g, respectively. The overall litter size was 1.8and 32.9, 58.2 and 8.9% of kidding produced single, twins and triplets, respectively. Sexratio was 53.3 male to 46.7% female. Average onset of post-partum oestrus was 51 andinterval from parturition to pregnancy 69.3 days. Production of Jamunapari goats wascomparable with that of the Bengal goats.(Bangl. vet. 2010. Vol. 27, No. 1, 26 – 35)DOI: 10.3329/bvet.v27i1.5912

scholarly journals Factors Affecting Lactation Performance of Deoni Cattle

2020 ◽  
Vol 15 (04) ◽  
pp. 59-61
Author(s):  
Supriya G ◽  
Prashant Waghmare ◽  
Vivek Patil ◽  
Prakashkumar Rathod ◽  
Vidyasagar .
Keyword(s):  
Milk Yield ◽  
Genetic Factors ◽  
The Other ◽  
Age Group ◽  
Lactation Performance ◽  
Factors Affecting ◽  
Lactation Length ◽  
Performance Traits ◽  
Effect Of Age

The research was conducted on 78 lactation records of 78 Deoni cows over three years to analyze the effect of non-genetic factors on lactation performance traits. Data of lactation records were analyzed to determine the effect of age, parity, a period of calving and season of calving on lactation traits, viz., lactation milk yield (LMY), peak milk yield (PMY), lactation length (LL) and persistency of lactation. The findings revealed that age group and parity had a significant (p ≤0.05) effect on lactation milk yield, but not the period of calving and season of calving. Further, only the parity had a significant (P≤0.05) effect on peak milk yield of Deoni cattle but not the age group, period of calving, and season of calving. The other two traits, namely lactation length, and persistence was not influenced significantly by any the non-genetic factors evaluated in Deoni cattle.

The effect of early weaning on the lactation performance of Damascus goats and the growth rate of the kids

1975 ◽  
Vol 20 (2) ◽  
pp. 213-218 ◽  
Author(s):  
A. Louca ◽  
A. Mavrogenis ◽  
M. J. Lawlor
Keyword(s):  
Growth Rate ◽  
Milk Yield ◽  
Milk Replacer ◽  
Early Weaning ◽  
Lactation Performance ◽  
Lactation Length ◽  
Total Milk

SummaryOne hundred and four Damascus goats with their kids were used study the effects of early weaning on the lactation of the goats and the growth rate of the kids. The treatments studied were: 2-day suckling (S2) where the kids were suckled by their dams for 2 days a d then reared artificially on milk replacer; 35-day suckling (S35) where the dams suckled their kids for 35 days; 70-day suckling (S70) where the dams suckled their kids for 70 days.The differences among treatments in 150-day and total milk yield and lactation length were not significant. Conversely, the differences in the yield of milk available for marketing were highly significant. The goats on S2 produced more marketable milk than those on S35 and S70, and the goats on S35 produced more than those on S70. The growth rate of the kids weaned at 35 days of age was significantly lower than that of those weaned at 70 days. The differences between kids reared artificially and those suckled by their dams to 70 days of age were not significant. It was concluded that early weaning does not materially affect lactation performance and that it can increase the milk available for marketing.

The effect of type of suckling on the pre- and post-weaning lactation performance of Damascus goats and the growth rate of the kids

1986 ◽  
Vol 107 (2) ◽  
pp. 377-384 ◽  
Author(s):  
M. Hadjipanayiotou
Keyword(s):  
Adverse Effect ◽  
Milk Yield ◽  
Post Partum ◽  
The Other ◽  
Milk Replacer ◽  
Lactation Performance ◽  
Weight Losses ◽  
Total Milk ◽  
Commercial Milk ◽  
Milk Replacers

SummaryForty-nine and 58 Damascus goats were used in each of two trials, respectively. Goats were randomly allocated 2 days post-partum to twin-suckling (TS), singlesuckling (SS) and no-suckling (NS) kids treatments. In trial 1, artificially reared kids were divided into two groups fed either on ewe-milk (25·8% fat, 24·2% protein) or on calf-milk (15% fat, 22·5% protein) replacer. In trial 2, all artificially reared kids were fed on ewe-milk replacer. The ewe- and calf-milk replacers were reconstituted in the ratio of 1 part powder to 5 or 4 parts (by weight) of water, respectively.Separation of kids from their dams reduced total milk yield (means of two trials) until weaning (TS 194, SS 176, NS 121 kg/goat) and from weaning to 90 days of lactation (TS 95, SS 89, NS 70 kg/goat). On the other hand, separation of kids increased marketable milk yield until weaning (TS 68, SS 99, NS 121 kg/goat). Marketable milk during the period 3–90 days post-partum was similar for NS and SS goats (TS 163, SS 188, NS 191 kg/goat). Goats suckling two kids suffered greater weight losses (TS 78, SS 44, NS 6 g/day). Goats suckling two males produced more milk until weaning than all other twin sets. Differences in concentrate intake between group means of TS and SS were smaller compared with the NS group (TS 2·26, SS 2·08, NS 1·86 kg/goat per day).There were no differences in weaning weight and weight gain from birth to weaning between kids reared on milk replacers. However, four kids on the calf-milk replacer died and two more were excluded from the data because of severe scouring. Single suckling kids gained more weight until weaning than TS and those reared artificially (AR) on ewe-milk replacer (SS 11·1, TS 9·1, AR 9·3 kg/kid). Furthermore, males consumed more milk than females (males 74, females 64 kg/kid) and SS more than TS kids (SS 75, TS 63 kg/kid).It is concluded that SS and NS treatments increase commercial milk yields compared with the TS goats, but NS should not be recommended because of an adverse effect on pre- and post-weaning lactation performance.

Sign in / Sign up

Export Citation Format

Share Document