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Diary of a Worm: Nat the Gnat by Doreen Cronin Pdf
Worm is thrilled when it's his turn to take care of the class pet, Nat the Gnat. But everything goes wrong when he leaves the lid of Nat's tank open. Can Worm make sure the class pet returns safe and sound before Mrs. Mulch finds out? This all-new, original I Can Read story captures the fun of the #1 New York Times bestselling Diary of a Worm picture book series by Doreen Cronin and Harry Bliss, and will leave beginning readers wiggling for more! This Level 1 I Can Read book is perfect for children learning to sound out words and sentences.
Epidemiological studies on gastro-intestinal nematode infections in chickens by Kalyakorn Wongrak Pdf
The study results indicated a high prevalence (>99%) of nematode infections with the most prevalent species beingthe caecal worm Heterakis gallinarum (98.5%), followed by the roundworm Ascaridiagalli(96.2%) and the hairworms Capillaria spp. (86.1%). Capillaria spp. were composed of C. obsignata, C. caudinflataand C. bursata. It can be concluded that chickens kept in free-range systems are exposed to a higher risk of nematode infections, even if the animals are kept in a rotational system and/or in small herd sizes. However, no obvious link between high mortality rates and nematode infections could be determined. The high genetic correlation between counts of closely related worm species (e.g., A. galliand H. gallinarum) may indicate the existence of similar/same genetically determined mechanism(s) for controlling these nematodesin chickens. High heritabilities for total worm burden suggest that it is feasible to select hens for nematode resistance. Nematode egg excretion in both naturally occurring and experimental infections follows repeatable diurnal fluctuations which may indicate adaptive strategies of the nematodes to both internal and external environmental factors. Since the analytic sensitivity of egg counts suffers from low faecal egg concentrations, results from the present study suggests that faeces samples taken during daytime hours have a higher diagnostic value.