Reproductive Parameters of Native Sows in Selected Area of Bangladesh

Abstract

Reproductive performance is considered as one of the important factors affecting the productivity and economy of the pig farms. The objective of the study was to determine the reproductive parameters of gilts and sows by direct interview method using a pretested questionnaire in selected area of Bangladesh. A total of 20 pig farms having 60 gilts and 27 sows were included in this investigation. The present study revealed that, in native female pigs, the age at puberty was 229.0 ± 16.7 days, the oestrous cycle length was 22.2 ± 1.2 days, the oestrous duration was 37.9 ± 14.2 hours, the gestation length was 113.5 ± 1.0 days, the interval between farrowing and onset of oestrus was 62.9 ± 11.9 days and the number of piglets born per native sow was 5.25 ± 2.3. It was also found that the first service pregnancy rate was 71.7% and the number of services required for each pregnancy was 1.3. The highest proportion of pigs was detected in oestrus by observing stand to be mounted by boars. It is concluded that reproductive parameters of native sows need to be improved for better production.

Comparison of Reproductive Parameters of Sow at the Rural Areas of Rangamati District of Bangladesh

“…The mean number of piglet's production in the present study was 6.1 ± 2.2. The mean number of piglet production of the present study is slightly lower than that of a previous study where the mean number of piglet production was 7.6 (Sinha, 2012), and higher than that of a previous study where the mean number of piglet production was 5.3 (Motaleb, 2013).…”

“…In the present study, the mean duration of oestrus in local and cross breed sows was 41.1 ± 3.1 and 36.8 ± 2.5 hours, respectively and it ranged from 15 to 72 hours. Similarly, Motaleb (2013) has reported that the duration of oestrus in native pigs was 37.9 hours. Duration of oestrus or heat is variable which may last only 12 hours in gilts or up to 60 hours or more in sows (Singleton and Diekman, 1990).…”

“…The finding of the present study is consistent with previous study where the mean oestrous cycle length was 21 days and it ranged from 18 to 24 days (Singleton and Diekman, 1990). In another study, Motaleb (2013) has reported that the oestrous cycle length of native pigs is 22.2 days.…”

Analysis of survey data of breeding herd for reproductive management practices in swine farms of Punjab

“…Newborn mortality generally occurred minor variations among different reproductive traits owing to difference in environment, feeding and management practices. Accordingly, FI (156 days) and WCI (38 days) in sows of Brazil (Mayor et al 2007), WEI (3-8 days) in Thailand (Tantasuparuk et al 2000), gestation length (114.5±1.0 days) in Bangladesh (Motaleb et al 2014), live litter size at birth (10.45) and weaning (9.44) in Czech Republic (Nevrkla et al 2016) and pre-wean mortality (18.2%) in North America (Holtkamp et al 2012) have been recorded previously. Nevertheless, most dependent variables in this study exhibited low values as compared to those revealed in an earlier report by Gourdine et al (2006) who maintained pigs in closed confinement under constant observation.…”

Performance of F1 Piglets of Sows Fed Fermented and Enzyme-Supplemented Cassava Peel Meal Based Diets

“…The average litter sizes of 7.33±0.06 piglets (T1), 6.00±0.03 piglets (T2) and 6.33±0.08 piglets (T3) are more than 5.3 piglets reported by Motaleb et al (2014). The T1 result was similar to 7.33±3.4 piglets/litter for Sinha et al (2015).…”