Growth performance, egg quality and selection intensity of 6th generation of BLRI improved native duck genotypes
نویسندگان
چکیده
This research was taken to improve the performance of native duck. Two duck varieties, Rupali and Nageswari 6th generation were selected aiming increase their laying performances. A total 540 ducklings both genotypes hatched brooded in brooder house. Male female ducks separated marked with wing band at 12 weeks age. At 40 age, a 300 genotype on basis selection index comprising parameters age first egg, body weight egg production % weight. The individual higher score for breeding purposes. Selected male ratio 1:5 using natural mating. intensity expected responses criteria two estimated. Selection ASM (day), (g) rate -1.84, 1.08 g 0.45 case -1.66, 1.35 0.73 Nageswari, respectively. Egg numerically (60.12%) than (58.41%). (EW) feed intake significantly differences between where values found (EW 64.83g 134g) Nageswary. shape (76%) (75%) In conclusion, showed better it is suggested that selective may have significant impact development SAARC J. Agric., 21(1): 253-263 (2023)
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ژورنال
عنوان ژورنال: SAARC Journal of Agriculture
سال: 2023
ISSN: ['1682-8348', '2312-8038']
DOI: https://doi.org/10.3329/sja.v21i1.66244