A survey of reproductive performance in herds of beef cattle from 13 properties in Victoria

1977 ◽  
Vol 17 (85) ◽  
pp. 181
Author(s):  
K Baharin ◽  
RG Beilharz
Keyword(s):  
Mortality Rate ◽  
Beef Cattle ◽  
Reproductive Performance ◽  
Calving Interval ◽  
Age At First Calving ◽  
Cent Mortality ◽  
Calving Rate ◽  
Main Factor

An analysis of the reproductive, performance of beef cattle based on 5840 records of performance from thirteen properties in Victoria was made. Traits analysed included calving rate, twinning rate, mortality of calves, age at first calving interval. When all data were pooled, mean age at first calving was 863.5 days, calving interval 361 days, calving rate 88.7 per cent, mortality rate at birth of the calves 4.3 per cent, pre-weaning mortality 1.5 per cent, post-weaning mortality 0.3 per cent and twinning rate 1.5 per cent. Wide variation in reproductive performance was observed between properties. As found in other studies, age of dam was the main factor affecting reproductive performance and adjustments to take account of this variation are necessary when comparing the performance of different animals.

Genetic and environmental influences on beef cattle production in Zambia 4. Weaner production from purebred and reciprocally crossbred dams

1981 ◽  
Vol 33 (2) ◽  
pp. 165-177 ◽  
Author(s):  
W. Thorpe ◽  
D. K. R. Cruickshank ◽  
R. Thompson
Keyword(s):  
Birth Weight ◽  
Mortality Rate ◽  
Beef Cattle ◽  
Breeding Season ◽  
Reproductive Performance ◽  
Live Weight ◽  
Cattle Production ◽  
Weaning Weight ◽  
Beef Cattle Production ◽  
Calving Rate

ABSTRACTEstimates of dam reproductive performance are reported for purebred Africander, Angoni, Barotse and Boran dams, and the reciprocal crossbreds of the latter three breeds, under ranching conditions in Zambia.Mean performances based on a maximum of 1996 records collected over six parities were: calving rate, 65·6%; weaning rate, 62·8%; calf birth weight, 26·6kg; calf weaning weight, 163·6kg; and dam live weight at weaning, 363 0 kg.Purebred Africander and Barotse dams had significantly poorer calving rates, 542 and 57·6% respectively, than the purebred dams of the Angoni and Boran breeds, 69·1 and 66·0% respectively. Reciprocal crossbred dams of the latter two breeds had the highest calving rates, 71·2 and 74·4%. Heterosis estimates for calving rate were 0·8% for Angoni/Barotse crosses, 7·8% for Angoni/Boran crosses and 10·3% for Barotse/Boran crosses and, for weaning rate, 3·7, 6·7 and 11·5% respectively. There were no differences between reciprocal crossbred dams for calving and weaning percentages. The mortality rate of calves born to crossbred dams was 40% and that of the calves born to purebred dams of the same breeds 4·7%. Dam status at mating had an important effect on fertility with the calving rate of dams dry at mating, 89·1%, contrasting with a rate of 39·8% for those dams that were lactating at mating and that had calved late in the season.There were large differences between breeds for calf weights but heterosis estimates were small and nonsignificant. There were no differences between the progeny weights of reciprocal crossbred dams. Sex, date and period of birth, and dam status had significant effects on calf weights.Africander dams had the heaviest, and Angoni dams the lightest, live weights at weaning, 421·1 and 320·7 kg respectively. Heterosis estimates for dam live weights were small and non-significant, and reciprocal crossbred differences were unimportant. Dams which lost most live weight during the dry season, that had extremely light live weights at the beginning of the breeding season or that gained little weight during the breeding season had significantly poorer fertility than other dams.Overall estimates of heritability derived by dam/daughter regression were 0·20 for calving percentage, 0·76 for calf birth weight and 0·72 for calf weaning weight.

scholarly journals Reproductive performance of female swamp buffalo in West Sumatra

2021 ◽  
Vol 748 (1) ◽  
pp. 012025
Author(s):  
R Reswati ◽  
BP Purwanto ◽  
R Priyanto ◽  
W Manalu ◽  
R I Arifiantini
Keyword(s):  
Population Growth ◽  
Reproductive Performance ◽  
Climatic Conditions ◽  
Calving Interval ◽  
Farming Practices ◽  
Age At First Calving ◽  
West Sumatra ◽  
Swamp Buffalo ◽  
Different Altitudes ◽  
Better Than

Abstract The swamp buffalo population in West Sumatra Province decline continuously due to the low female reproductive performance. This research was conducted to identify female buffalo reproductive performance, which could be used as baseline data to enhance its population growth. A survey research method was conducted in two subdistricts, namely Lubuk Basung and Matur, located at different altitudes. Data were collected by interviewing farmers and observing their farms. The parameters observed were age at first mating, age at first calving, calving interval, service per conception, and buffalo farming practices. Significant differences in reproductive performances of female buffalo were observed. Age at first mating 39.04 ± 9.91 and 33.67 ± 5.3 mo., age at first calving 51.61 ± 9.95 and 45.71 ± 5.58 mo., calving interval 27.26 ± 8.84 and 24.17 ± 7.06 mo., and services per conception 1.82 ± 0.82 and 1.55 ± 0.78 were represented buffalo in Lubuk Basung and Matur, respectively. The buffalo reproductive performances in both locations were not optimal; however, Matur’s buffalo reproductive performances were better than those in Lubuk Basung due to its better farming practices and more comfort climatic conditions. Therefore, improving farming practice is essential to enhance buffalo’s reproductive performance and population growth.

scholarly journals PENAMPILAN REPRODUKSI TERNAK SAPI POTONG DI KECAMATAN BINTAUNA KABUPATEN BOLAANG MONGONDOW UTARA

ZOOTEC ◽  
2017 ◽  
Vol 38 (1) ◽  
pp. 102
Author(s):  
Aikal Pohontu ◽  
Agustinus Lomboan ◽  
Jantje F. Paath ◽  
Siane C. Rimbing
Keyword(s):  
Beef Cattle ◽  
Reproductive Performance ◽  
Random Sampling ◽  
Sampling Method ◽  
Descriptive Analysis ◽  
Population Increase ◽  
Calving Interval ◽  
Analysis Model ◽  
Reproduction Performance ◽  
Selection Of

REPRODUCTIVE PERFORMANCE OF BEEF CATTLE IN BINTAUNA DISTRICT OF NORTH BOLAANG MONGONDOW REGENCY. This study was conducted to evaluate the reproduction performance of beef cattle in Bintauna district of North Bolaang Mongondow regency. Reproductive performance was studied to determine the productivity of livestock especially in population increase and availability of meat. This research used samples of farmer as breeder of beef cattle. The selections of village samples were determined purposively by consideration of the villages with the largest population of livestock including the villages of Pimpi, Kopi, and Bintauna. Selection of respondents using random sampling method involved 10 farmers for each selected village, with the total of 30 farmers as respondents. Data of the variables were analyzed using descriptive analysis model. The results showed that the age of puberty animal was 12.03 ± 4.81 months, service per conception was 1.19, conception rate was 73%, pregnancy period was 276 ± 2.53 days, and calving interval was 366 ± 3.21 days. Based on these results, it can be concluded that the reproduction of beef cattle in Bintauna district of North Bolaang Mongondow regency was categorized into good performance. Keyword: Reproduction performance, beef cattle, Bintauna district

scholarly journals Reproductive performance and superovulatory endangered Cameroonian Namshi breed (Bos taurus)

2021 ◽  
Vol 31 (1) ◽  
pp. 112-118
Author(s):  
L. D. Massoma ◽  
N. M. Ngo ◽  
J. Tchoumboue ◽  
O. Messono
Keyword(s):  
Mortality Rate ◽  
Reproductive Performance ◽  
Bos Taurus ◽  
Ovarian Response ◽  
Dry Season ◽  
Wet Season ◽  
Average Birth Weight ◽  
Oestrus Cycle ◽  
Calf Mortality ◽  
Calving Rate

This study was undertaken to determine the reproductive performance of the endangered Bos-taurus Namshi breed of Cameroon. Ovarian response to superovulatory treatment was also evaluated. The following observations were recorded. The average calf mortality rate was 25.71% while the average birth weight was 12.22±0.82kg. The percentage of animals in oestrus during the wet and dry season was respectively 60% and 33.4%. The oestrus cycle length and the oestrus duration were respectively 20.80±1.20d and 7.00±0.80h: corresponding dry season figures for those parameters were 19.00±0.94d and 6.00±0.7h respectively. In the dry season the manifestation of oestrus was 80º during the day and 20º at night while in the wet season it was 55.55% and 44.5% respectively. Postpartum oestrus was at 18 months. The ovarian response to superovulatory treatment was about 6.40±2.50 ovulations per cow. Results indicate that the scarcity of Bos-taurus Namshi breed in Camerron could be attributed to high calf mortality rate, low calving rate and long postpartum periods. Embryo transfer could be a way to rapidly multiply this breed.  

scholarly journals Performa Reproduksi Sapi Perah Fries Holland Pada Laktasi 1 Di PT. Ultra Peternakan Bandung Selatan

2021 ◽  
Vol 3 (01) ◽  
pp. 34-41
Author(s):  
Raden Febrianto Christi ◽  
Didin S Tasripin ◽  
Arin Rinaldi
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Reproductive Capacity ◽  
Calving Interval ◽  
Reproductive Management ◽  
Fertility Status ◽  
Days Open ◽  
Reproduction Management ◽  
Calving Rate ◽  
Efficiency And Productivity

Reproduction management is one of the important things in a dairy farming business because good reproductive management, along with high reproductive capacity, will increase the efficiency and productivity of livestock. This study aims to determine the reproductive performance of FH dairy cows at first lactation on first mating post partus, service per conception, days open, calving interval, coception rate, calving rate and fertility status. The results of the research showed reproductive performance with parameters first mating post partus 59.5 days, service per conception 4.5 times, days open 145,5 days. The conclusion of this research is reproductive performance is not optimal.

scholarly journals PENAMPILAN REPRODUKSI SAPI POTONG LOKAL DI KECAMATAN BOLAANG KABUPATEN BOLAANG MONGONDOW

ZOOTEC ◽  
2020 ◽  
Vol 40 (2) ◽  
pp. 763
Author(s):  
Brenda Boda ◽  
A. Lomboan ◽  
J.F. Paath ◽  
M. J. Hendrik
Keyword(s):  
Beef Cattle ◽  
Reproductive Performance ◽  
Descriptive Analysis ◽  
Secondary Data ◽  
Beef Cows ◽  
Survey Method ◽  
Calving Interval ◽  
Beef Cow ◽  
Key Word ◽  
Collection Data

REPRODUCTIVE PERFORMANCE OF LOCAL BEEF COWS IN BOLAANG DISTRICT OF BOLAANG MONGONDOW REGENCY. This study aims to determine the reproductive performance of local beef cattle in Bolaang District, BolaangMongondow Regency. This study used local beef cattle owned by breeders who were taken as samples in several villages in Bolaang District, Bolaang Mongondow Regency. This study used a survey method to obtain primary and secondary data collection. Data analysis regarding the studied variables used descriptive analysis referring to the measurement of each variable. The results showed that service per conception was 1.38, conception rate was 70%, pregnancy period was 276.47 days, animal age of first calving was 32.022 months, and calving interval was 375.26 days. Based on these results of study, it can be concluded that the reproductive performance of local beef cattle in Bolaang district, Bolaang Mongondow regency was categorized into normal reproductive performance of local beef cattle. Key word: Reproduction, Local beef cow, Bolaang district,  

scholarly journals Growth and reproductive traits of friesian X sanga crossbred cattle in the Accra plains of Ghana

2013 ◽  
Vol 13 (57) ◽  
pp. 7357-7371
Author(s):  
FY Obese ◽  
◽  
DA Acheampong ◽  
KA Darfour-Oduro ◽  
Keyword(s):  
Birth Weight ◽  
Reproductive Performance ◽  
Production System ◽  
Reproductive Traits ◽  
Calving Interval ◽  
Limited Information ◽  
Crossbred Cattle ◽  
Age At First Calving ◽  
Inadequate Nutrition ◽  
Accra Plains

The typical cattle production system in Ghana is predominantly pasture-based. Cattle are grazed all year round on natural pastures with minimal feed supplementation. The animals kept in this production system often experience inadequate nutrition and fluctuating nutrient supply affecting their productivity. There is presently limited information on the growth and reproductive performance of the Friesian x Sanga crossbred cattle (Plate 1) and factors influencing these performance traits. The growth and reproductive performance records of 150 Friesian x Sanga crossbred cattle, kept at the Animal Research Institute station in the Accra Plains of Ghana from April 1993 to October 2009 were evaluated to determine the effect of parity of cow, season of calving and sex of calf on birth weight, weaning weight, growth rate, age at first calving and calving interval. The birth weight and weaning weights of the calves averaged 21.8 ± 0.5 kg and 94.2 ± 3.8 kg, respectively, and were not (P > 0.05) affected by sex of calf, parity of cow or season of calving. Parity of cow affected (P < 0.05) weight of calf at 12 months. Calf weight at 12 and 18 months averaged 128.0 ± 3.4 kg and 159.9 ± 4.5 kg, respectively. Pre-weaning and post-weaning average daily gains were 0.33 ± 0.02 kg/day and 0.23 ± 0.03 kg/day, respectively, and were not significantly (P > 0.05) affected by sex of calf, parity of cow or season of calving. The mean age at first calving was 41.2 ± 1.2 months. Calving interval was prolonged averaging 441.6 ± 10.3 days and was significantly (P < 0.05) affected by parity of cow. Calving interval decreased with increasing parity of cow. The age at first calving and calving interval were not (P > 0.05) affected by either sex of calf or season of calving. The growth and reproductive performance of the Friesian x Sanga crossbred cattle was less than optimum. Improving their nutrition could impact, positively, on their productivity through fast growth, increased milk yield and early resumption of ovarian cycles after calving. Thus, results from this study should guide the development of appropriate strategies for increased meat and milk production in Friesian x Sanga crossbred cattle.

scholarly journals Genetic Parameters for Age at First Calving and First Calving Interval of Beef Cattle

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2122
Author(s):  
Michaela Brzáková ◽  
Jindřich Čítek ◽  
Alena Svitáková ◽  
Zdeňka Veselá ◽  
Luboš Vostrý
Keyword(s):  
Beef Cattle ◽  
Genetic Parameters ◽  
Genetic Correlations ◽  
Performance Testing ◽  
Breeding Strategy ◽  
Relationship Matrix ◽  
Calving Interval ◽  
Data Set ◽  
Age At First Calving ◽  
The Relationship

The objective of this study was to estimate genetic parameters for age at first calving (AFC) and first calving interval (FCI) for the entire beef cattle population and separately for the Charolais (CH) and Aberdeen Angus (AA) breeds in the Czech Republic. The database of performance testing between the years 1991 and 2019 was used. The total number of cows was 83,788 from 11 breeds. After editing, the data set contained 33,533 cows, including 9321 and 4419 CH and AA cows, respectively. The relationship matrix included 85,842 animals for the entire beef population and 24,248 and 11,406 animals for the CH and AA breeds, respectively. A multibreed multitrait animal model was applied. The estimated heritability was low to moderate. Genetic correlations between AFC and FCI varied depending on the breeds from positive to negative. Differences between variance components suggest that differences between breeds should be considered before selection and breeding strategy should be developed within a breed.

scholarly journals Genetic relationships between calving date, calving interval, age at first calving and type traits in beef cattle

2002 ◽  
Vol 78 (3) ◽  
pp. 215-222 ◽  
Author(s):  
J.P Gutiérrez ◽  
I Alvarez ◽  
I Fernández ◽  
L.J Royo ◽  
J Dı́ez ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Genetic Relationships ◽  
Calving Interval ◽  
Age At First Calving ◽  
Type Traits
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