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Reduced intestinal absorption in broilers during Eimeria mitis infection
1982
Ruff, M.D. | Edgar, S.A.
Eimeria mitis, 2 strains, chickens, reduced intestinal absorption of glucose and L-methionine, reduced weight gain, depigmentation of plasma, gross lesions absent
Afficher plus [+] Moins [-]Experimental Sarcocystis suicanis infections: Disease in growing pigs
1982
Barrows, P.L. | Prestwood, A.K. | Green, C.E.
Sarcocystis suicanis, Georgia isolate, pigs (exper.), pathology, reduced growth rate of host
Afficher plus [+] Moins [-]Effects of concurrent subclinical infections by coccidia (Eimeria christenseni) and intestinal nematodes (Trichostrongylus colubriformis) on apparent nutrient digestibilities and balances, serum copper and zinc, and bone mineralization in the pigmy goat
1982
Frandsen, J.C.
Eimeria christenseni, Trichostrongylus colubriformis, pygmy goats (exper.), effects of concurrent subclinical infections on liveweight; apparent feed digestibility; balances of calcium, nitrogen, and phosphorus; serum copper and zinc concentrations; and bone matrix mineralization
Afficher plus [+] Moins [-]Developmental stages of Dirofilaria immitis in the dog
1982
Kotani, T. | Powers, K.G.
Dirofilaria immitis, dogs (exper.), location, growth, and time required for larvae to molt and develop
Afficher plus [+] Moins [-]Effect of Fusarium roseum corn culture containing zearalenone on early pregnancy in swine
1982
Long, G.G. | Diekman, M. | Tuite, J.F. | Shannon, G.M. | Vesonder, R.F.
A corn culture of Fusarium roseum was added to a standard corn-soybean swine gestation ration. Low, middle, and high dosage mixed feeds contained 7, 38, and 64 mg of zearalenone/kg of feed (7, 38, and 64 ppm) and 0.5, 2.5, and 4.5 mg of deoxynivalenol/kg, respectively. Control feed was the standard ration without added F roseum corn culture. Mature gilts were bred by natural service and fed control or F roseum molded feed from 3 to 34 days after breeding. The main effect of the molded feed was an inhibition of fetal development, with decreased numbers of fetuses present in treated animals at slaughter (38 to 43 days after breeding). Normal litters were present in 7 of 8 control animals, in 2 of 4 gilts given the low-dosage feed, in 1 of 4 gilts given the medium dosage, and in 0 of 4 given the high-dosage feed. Corpora lutea were maintained in all treated animals, as evidenced by serum progesterone concentrations. Serum estradiol concentrations were decreased in gilts in the middle- and high-dosage groups. The genital system of the gilts fed low- and middle-dosage feeds had a gross and microscopic appearance similar to that of the pregnant controls and reflected prolonged progesterone stimulation. Morphologic changes in the genital system of the high-dosage group were intermediate between changes induced by progesterone and those induced by estrogen. Clinical signs of hyperestrogenism and partial feed refusal were noticed in only some of the high-dosage group animals.
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