Intraruminal and intraabomasal pH dynamics of goats at norm and after their infection with Ostertagia circumcincta. Summary of doctoral thesis for scientific degree Dr.med.vet. | Kazu intrarumenālā un intraabomazālā pH-dinamika normā un pēc invadēšanas ar Ostertagia circumcincta. Promocijas darba kopsavilkums Dr.met.vet. zinātniskā grāda iegūšanai Veterinārmedicīnas nozarē Fizioloģijas apakšnozarē
2010
Keidane, D., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Veterinary Medicine. Preclinical Inst.
The doctoral work was performed in Latvian University of Agriculture Faculty of Veterinary Medicine, Preclinical Institute between the year 2002 and 2007. The above mentioned had grounds for the aim of the preset research: to investigate one of the most important parameters of the stomach functional conditions in goats - intraruminal and intra-abomasal pH dynamics in norm and in animals artificially infected with digestive tract strongylates. Objectives of the research: (1) to investigate intraruminal and intra-abomasal pH dynamics in two-three months old kids feeding them with mother's milk and hay; (2) to find out the reaction of the rumen and abomasum of goats to feeding of a particular feed combination; (3) to infect artificially two-three months old kids and adult goats aged 10-14 months with 5000 and 10 000 larvae of the digestive tract infective strongylates Ostertagia circumcincta (syn. of Teladorsagia circumcincta) of L3 development stage; (4) to investigate intraruminal and intra-abomasal pH dynamics in the above mentioned artificially infected animals, as well as the hematological and biochemical parameters of blood. In the experimental part of work 55 animals was used: 18 two – three month old yeanlings and 37 ten - fourteen month old goats. The methods of long term potentiometric intragastral pH metry and chronic fistula was used to investigate the pH dynamics in the rumen and abomasum of goats fed with several combinations of nutrition aid. Research was done to establish the changes in the parameters of the rumen and abomasum pH dynamics, several hematological and biochemical parameter changes before and after artificial invasion of the goat with 5000 and 10000 strongylates Ostertagia circumcincta of L3 development stage.
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