A total of 448, Sakini (224) and Giriraja (224) breed of chickens were used to investigate the feed intake & weight gain from 0-150 days and egg production and egg quality from 150 -240 days of age in Khumaltar Lalitpur Nepal. The four different levels of probiotics viz. 0,5, 10 and 15 ml of Probiotic (Poultry biosa)/kg of feed were used with randomized factor design 2*4*8(RBD) with 8 treatments and 8 replications. The data was recorded daily on feed intake and egg production and in every 15 days interval for weight gain. Results showed that the addition of probiotic to the feed significantly improved feed intake, weight gain , egg production and egg quality on sakini and giriraja breeds of chickens(P<0.05). Additionally, data on egg production and egg quality showed increased production in treatment group than control group (P<0.05).The general trend revealed increasing level of egg production from five to eight months with significant difference (P<0.05). Nutrient analysis of eggs by proximate analysis in terms of CP, CF, fat and energy showed significant difference (P<0.05). Thus to conclude, there is positive effect of probiotics for production and productivity in terms of feed conversion ratio, weight gain, egg production & egg quality in Sakini and Giriraja breed of Chicken.
Research on wool production performance between different lines and strains of Angora rabbit was started at Swine and Avian Research Program(SARP), Khumaltar, Lalitpur since 1994. The high yielding lines of German (G1) and Chinese Angora were introduced at SARP in 1998 from Chitlang Goat Farm of Department of Livestock Services(DLS) and Lumle Agriculture Research Center. Research on wool production performance of German, Chinese, Russian and British strains of Angora rabbit at Khumaltar, Lalitpur was conducted . Based upon the one year data G1 line of German Angora showed significantly (P < 0.05 ) higher wool production( 949.2 + 101g /rabbit /year) than other lines and strains of Angora rabbit . The average annual wool production in Chinese Angora, G2 line of German Angora, Russian Angora and British Angora were 656.2 g, 511g, 349.5 g and 335 g respectively. Similarly, additional improvement on management for existing lines and strains also showed significant (P < 0.05 increase on wool production performance as compared with the result of previous year(G2 line of German 423.125 g to 511 g and British 305 g to 349 g).
Comparative performance of New Hampshire and Giriraja breeds of chicken was studied at Swine and Avian Research Program, Khumaltar. The data on feed intake, weight gain and mortality of the chicks were recorded up to 12 weeks of age. All the experimental birds were reared with commercial broilers feed (Pancha Ratna feed) under similar management. Significant (<0.01) effect of breed on body weight was observed with Giriraja showing superior to New Hampshire. Effect of sex on body weight was also found significant (P<0.01). At twelve-week of age, higher body weight was observed for Giriraja male (2082 g) followed by Giriraja female (1655 g), New Hampshire male (1338 g) and New Hampshire female (1051 g) with cumulative FCR of 3.40,3.78,3.87 and 3.90 respectively. Irrespective of sex, Giriraja exhibited better FCR than New Hampshire at all weeks of rearing. The cumulative mortality was found as 6.21% and 12.25% for New Hampshire and Giriraja respectively. Up to 12 weeks of rearing, higher saving per bird was observed in Giriraja (Rs132.39) than that of New Hampshire (Rs 67.09). The findings of this study revealed that these dual-purpose breeds have potentiality to be competitive meat producers in intensive management. Giriraja is better than New Hampshire in terms of higher growth, better feed efficiency and saving per birds but need for proper health management particularly in the early growth stage. Looking at the havier body weight with having better feed efficiency and higher saving per bird of 12 week rearing, Giriraja could be the choice of economical viable intensive farming for generating premium cash income whereas New Hampshire appears to be suitable for scavenging and semi-scavenging management.
This study was undertaken to evaluate the egg quality parameters of New Hampshire and Giriraja by maintaining four different flocks (lines) of New Hampshire viz. NH-Khajura, NH-Parwanipur, NH-Khumaltar and NH-Pokhara and three different flocks (lines) of Giriraja viz. GR-Pakhribas, GR-Khumaltar and GR-Tarhara. The 40-60 weeks of hatchability, fertility, external and internal egg quality parameters were studied and recorded. A total of 200 birds (40 weeks of age) of each New Hampshire and Giriraja from each line were maintained on deep litter system. Results from this study indicated the significant effect of genotype and respective lines on fertility and hatchability of eggs. Significant (P<0.05) variation in fertility and no significant variation in hatchability for genotypes were found. However, in terms of fertility and hatchability, there were significant variations in different lines. In case of egg weight: no significant (P<0.01) variation was obtained for genotype but lines comparison showed significant variation. Other external egg quality parameters like egg length, egg diameter, shape index, shell thickness were examined for evaluating the genotype and line effect. In all these external egg quality parameters, there were significant (P<0.01) effect of both genotype and lines of birds. For internal egg qualities, yolk weight (g), yolk index, albumen weight and albumen index were checked. Genotype had no significant (P<0.01) effect but lines had significant (P<0.01) effect on yolk weight. In case of yolk index, both genotype and lines of bird had no significant effect. For albumen weight and albumen index, genotype of birds had no significant (P<0.01) effect but lines of bird had significant (P<0.01) effect on both parameters. The study showed that the egg quality parameters of NH (Khajura) were better than that of GR. Among different lines New Hampshire (Khajura) showed better performance in terms of egg quality parameter. Bang. J. Anim. Sci. 2020. 49 (2): 108-118
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