The Role of Estrous Synchronization and Artificial Insemination in Improving the Reproductive Performance of Moo Lath Gilts

Somsy Xayalath (), Gabriella Novotni-Danko and József Rátky ()
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Somsy Xayalath: Doctoral School of Animal Husbandry, University of Debrecen, Böszörményi Street 138, 4032 Debrecen, Hungary
Gabriella Novotni-Danko: Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, 4032 Debrecen, Hungary
József Rátky: Department of Obstetrics and Farm Animal Medicine Clinic, University of Veterinary Science, István Street 2, 1078 Budapest, Hungary

Agriculture, 2022, vol. 12, issue 10, 1-11

Abstract: Considering the different problems facing the Lao indigenous pig breed Moo Lath . This study was performed to evaluate the efficiency of applying estrous synchronization for the better reproductive management of this species with the use of Altrenogest Regumate ® to increase the litter size and birth weight of crossbred piglets using artificial insemination (AI) with Duroc semen. In total, 36 gilts (age: 6.5−10.5 months, weight at insemination: 36.60−51.42 kg) were used. The gilts were divided into three groups (G1, 2, and 3); G1 (18) were synchronized, while G2 (12) were not. Both G1 and G2 gilts were inseminated using Duroc semen, whereas a local boar naturally serviced the G3 (6) gilts. Our results showed that G1 produced the largest litter, compared with G2 and G3 (8.66, 7.50, and 5.50, respectively; p < 0.000). The birth weight of the piglets was not different between the groups ( p = 0.464), and higher birth weight was observed in the gilts younger than 7 months and lower in those older than 9 months. In conclusion, the litter size of Moo Lath primiparous gilts was improved in the F−1 Duroc− Moo Lath crossbreed, but their birth weight did not. Moreover, estrous synchronization and AI are novel techniques among Lao farmers who still need more training. Both the optimal body weight and age of gilts at first mating should be clarified for a better economic outcome.

Keywords: estrous synchronization; reproductive performance; Lao indigenous pig breeds (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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