Performance of Assam hill goat reared on periodically disinfected floor
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Date
2022
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College of Veterinary Science, Assam Agricultural University, Khanapara Campus
Abstract
A study was carried out to see the performance of Assam Hill Goat reared on disinfected floors. A total number of 18 Assam Hill Goats (9 males and 9 females) were selected and divided into 3 groups; each consists of 6 goats of an equal number of males and females which were intensively housed. The 3 groups were randomly assigned to the following treatments, viz. floor without any disinfectant treatment (T1), floor treated with sodium hypochlorite (T2) and floor treated with calcium oxide i.e. quicklime (T3).
The fortnightly average initial body weight of the selected goats of T1, T2 and T3 groups were 6.01 ± 0.16, 6.23 ± 0.16 and 6.21 ± 0.17 kg respectively and the corresponding value for the same groups at 6th fortnight were 10.45 ± 0.17, 11.93 ± 0.23 and 11.38 ± 0.22 kg respectively. Statistical analysis of the data exhibited significant differences among the groups from the 4th to 6th fortnight (P<0.05). Goats reared on a floor treated with sodium hypochlorite showed higher body weight followed by calcium oxide treated floor during the entire experimental period, however, the difference appeared to be non-significant up to 3rd fortnight. The critical difference test reveals that there was a significant difference between T1 and T2 groups but no significant difference could be observed between T1 and T3 as well as T2 and T3 groups.
The body weight gains of goats for T1, T2 and T3 groups in the 1st fortnight figured as 0.52 ± 0.09, 0.60 ± 0.08 and 0.57 ± 0.08 kg and the corresponding values for the same 3 groups in the 6th fortnight were recorded as 1.14 ± 0.11, 1.54 ± 0.10, and 1.37 ± 0.10 kg respectively. The average daily body weight gain of goats for T1 was 0.035 ± 0.005 kg, T2 was 0.040 ± 0.006 kg and T3 was 0.038 ± 0.005 kg in the 1st fortnight and the corresponding values for the same groups in the 6th fortnight were recorded as 0.076 ± 0.007 kg, 0.100 ± 0.006 kg, and 0.091 ± 0.006 kg respectively. The fortnightly body weight gain and daily body weight gain manifested a significant difference (P<0.05) statistically in 6th fortnight. The critical difference test reveals that there was a significant difference between T1 and T2 groups but found no significant difference between T1 and T3 as well as T2 and T3 groups.
The average dry matter intake of goats in T1, T2 and T3 were 4.05 ± 0.113, 4.48 ± 0.120 and 4.37 ± 0.117 kg in the 1st fortnight respectively and the corresponding values for the same 3 groups in the 6th fortnight were recorded as 6.59 ± 0.101, 7.51 ± 0.174, and 7.34 ± 0.163 kg respectively. There was a statistically significant difference (P<0.05) from 4th to 6th fortnight and the critical difference test revealed a significant difference between T1 and T2 groups but could not exhibit any significant difference between T1 and T3 as well as T2 and T3 groups.
The feed conversion ratios for T1, T2 and T3 goats in the 1st fortnight figured as 7.80 ± 0.18, 7.38 ± 0.17 and 7.65 ± 0.18 and the corresponding values for the same 3 groups in the 6th fortnight were 5.80 ± 0.12, 4.88 ± 0.10 , and 5.36 ± 0.11 respectively. The feed conversion ratio was found to be highly significant (P<0.01) from 4th to 6th fortnight. This revealed that feed was more efficiently utilized for growth by the goats reared on sodium hypochlorite treated floor (T2). The critical difference test reveals that there was a significant difference between T1 and T2 groups in 4th fortnight but no such differences could be seen between T1 and T3 as well as T2 and T3 groups. But from 5th fortnight onwards there was a significant difference among all the three groups.
The incidence rate of diarrhea of goats was recorded as 40% for T1, 18% for T2 and 40% for T3 in the 1st fortnight. No incidence of diarrhea was observed from 4th fortnight onwards in all the groups. The data expressed that the overall diarrhea incidence rate was higher in T1 goats intermediate in T3 and lowest in T2.
The parasitic infestation of goats was recorded as 83% in T1, 66% in T2 and 83% in T3 groups in the 1st fortnight. The data further reveals that the overall parasitic infestation of goats was found to be lowest in T2 goats followed by T3 and T1.