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Articles by Do Vo Anh Khoa
Total Records ( 2 ) for Do Vo Anh Khoa
  Nguyen Tien Thanh , Randolph Reinecker Zoerb and Do Vo Anh Khoa
  Background and Objectives: Most of farms in Vietnam are raising pigs originating/importing from temperate countries. Normally, their adaptation must be recorded, analyzed and evaluated before developing population. Objective of this study was to retrospectively characterize the reproductive performance of a new crossed pig line called GF24 line, which was crossed among pure Landrace, large white and Piétrain breeds imported from America under different management and climate conditions in Vietnam. Materials and Methods: The GF24 sows were arranged to mate with boars of GF399, GF337 or GF280 lines originating from American pure lines. Reproductive parameters were collected in 165 commercial pig farms and 1981 litters of GF24 reared in good management farms in Vietnamese provinces/cities during 4 years (2014-2017). Collected data was analyzed by using the R-Statistical Program with descriptive statistical method and GML model. Results: The prolificacy of GF24 sows was obtained among different mentioned conditions. Mean of total number of born/litter (TNB), number of born alive/litter (NBA), number born selected/litter (NBS) and number of weaning/litter (NW), were 13.06, 12.11, 11.17 and 10.49 piglets/litter, respectively. During the 24.39 day-lactation period, ADG (average daily gain) of piglets was 207.24 g/day. Although the differences for some observed traits among geographical regions such as subtropical and tropical zones along Vietnam and different managements for housings as well as farms and litters size were found, GF24 line always maintains their highly prolific characteristics under such conditions and definitely outperforms the other sow breeds/lines raised in Vietnam in terms of reproductive performance and total economic efficiency, especially under good management conditions of the farm, the performance of GF24 is very high and stable. Conclusion: The GF24 commercial sow line should be added to the industrialized pig production system to enhance the performance and benefits, which help pig production in Vietnam and other countries such as Cambodia, Laos and Myanmar have a faster move forward to prepare for the new economic integration.
  Nguyen Thi Hong Tuoi , Nguyen Tuyet Giang , Nguyen Thi Dieu Thuy , Huynh Thi Phuong Loan , Takeshi Shimogiri and Do Vo Anh Khoa
  Background and Objective: Noi is classified as a medium and slow-growing chicken breed of Vietnam, mainly for meat quality and fighting. This study aimed to evaluate carcass performances of Noi broilers at 91 days old. Materials and Methods: A total of 355 Noi chickens (164 males and 191 females) were slaughtered at the time point of 91 days old to record and calculate cut-up traits of the carcass. Results: Most of the evaluated traits were significantly different (p<0.001) between genders. Particularly, the males were always heavier than the females in weights of live body, carcass, thigh meat, breast meat, wing and drumstick (p<0.05),where as abdominal fat displayed a contrast between genders (25.04 g for males and 24.74 g for females) although no significant difference was found for this trait (p>0.05). In addition, genders significantly affected some cut-up portions such as live weight and carcass weight, except differences in weights of breast yield and abdominal fat, which was found in contrast. Live weight, in overall, significantly correlated with most carcass traits (p<0.001), but the coefficients differed due to the type of the observed traits. Females were higher in correlation to the weight of breast, thigh and drumstick than males (r = 0.71-0.88; r = 0.82-0.91, respectively). Conclusion: The findings showed that Noi male broilers had better performances in the live weight and carcass parameter than the female ones, suggesting opportunities for management and genetic improvement through the selection and cross-breeding of the indigenous chicken population.
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