19-Title: Study of changes in haematological parameters during different lactations in Toggenberg goats
Authors: Ishfaq Hassan Bhat and Jonali Devi
Source: Ruminant Science (2014)-3(2):221-227
How to cite this manuscript: Bhat Ishfaq Hassan and Devi Jonali (2014). Study of changes in haematological parameters during different lactations in Toggenberg goats. Ruminant Science 3(2):221-227
The investigation was undertaken to study some haematological parameters during different stages in different lactations in Toggenberg goats. These included control group, consisting of dry goats and group I, II, III and IV containing goats in 1st, 2nd, 3rd and 4th lactation period. Further each lactation period was divided into early, mid and late stage. Blood samples were collected at one month interval in all the groups. Samples collected in first two months was considered as early stage, 3rd and 4th months are considered as mid and 5th and 6th months as late lactation stage. Blood samples were analyzed by using conventional methods for various haematological parameters. Haemoglobin, TEC, erytrocytic indices and TLC showed decreasing trend form early to late stage. PCV percentage at early stage was significantly higher (P<0.05) as compared to the values of late lactation in group I, II and IV. Significantly higher neutrophil percentage was recorded in early and mid stage, whereas, lymphocyte percentage was higher during late lactation. Hb, PCV, TEC levels were lower, whereas, significantly higher (P<0.05) TLC was found in lactation as compared to dry stage. Percentage of neutrophils was significantly higher while lymphocyte percentage significantly lower in lactating goats. Significantly lower MCV levels were found in groups I, II and III as compared to control group; on the other hand, MCH value was significantly higher in 2nd and 3rd lactation and MCHC higher in all lactating groups as compared to other groups.
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