(1) The experiment was conducted on 3 groups of calves.
(2) These calves had hemagglutinating antibodies against P. hemolytica before exposure.
(3) After calving, probably the position of new follicles is temporally influenced by direct signals from the uterine horns affected differently by pregnancy.
(4) A total of 3,532 females of various engorged weights was collected from all calves, resulting in a mean female tick yield of 1.78% based on the number of larvae used for all infestations.
(5) Calves were tagged in the right ear with the green certified preconditioned for health (CPH) tag of the American Association of Bovine Practitioners.
(6) Calves showing signs of pneumonia had low levels of IgG1 (45-5 per cent had less than 8 mg per ml compared with "now-pneumonic" calves which had relatively high levels (only 9.5 per cent had less than 8 mg per ml).
(7) Calves were fed milk replacer twice daily while housed indoors in wooden-slatted floor box crates (metabolism cages).
(8) The results presented in this paper show that chronic lymphatic fistulae can be established successfully in fetal calves to give access to recirculating lymphocytes.
(9) One hundred and forty six calving interval records were built up from 64 N'Dama cows maintained for 3.5 years under a high natural tsetse challenge in Zaire.
(10) Although they were born at different periods of the year, the calves in all three groups had similar bacterial loads in their noses and tracheas when they were 1 day old (P greater than 0.05).
(11) Those findings suggest that CCN in calves is caused by thiamine deficiency and that the blood thiamine levels cannot be used for diagnosis of CCN.
(12) Examination of cattle faeces demonstrated that six-month-old calves excreted moderate numbers of N battus eggs in June and July, thus contaminating next season's sheep grazing.
(13) Distribution of immunoglobulin(Ig)-containing cells was investigated in calves inoculated orally with live organisms of both Bacteroides succinogenes and Selenomonas ruminantium.
(14) Nevertheless, there are farms on which satisfactory results are obtained in rearing calves with low Ig levels.
(15) It has to be assumed that in calves with respiratory distress syndrome--in analogy to pulmonary immaturity--the blood clotting mechanism is not yet fully developed.
(16) Twenty-eight Friesland calves were infested at 7 to 11 months of age with 5 000-45 OOO cercariae of Schistosoma mattheei.
(17) Calves were monitored for physiological changes for 6 h at 15, 30, or 60-min intervals.
(18) Calf birth weight and gestational length decreased (P less than .01) as the number of calves born increased from one to two to three.
(19) However, titers of six of these calves increased at five to eight months of age and either remained constant or increased through one year of age.
(20) The somatograms demonstrated that the ballet dancers had relatively smaller upper arms and larger calves and ankles compared with the reference female.
Rennin
Definition:
(n.) A milk-clotting enzyme obtained from the true stomach (abomasum) of a suckling calf. Mol. wt. about 31,000. Also called chymosin, rennase, and abomasal enzyme.
Example Sentences:
(1) Whey obtained by acid precipitation or by the application of rennin was devoid of bactericidal activity but was capable of slowing down proliferation of E coli.
(2) Mucor rennin was efficiently excreted from the yeast host as a heavily glycosylated form.
(3) One-day-old rats have a protease with a pH optimum of 3.8 to 4.2 similar to that of calf rennin.
(4) Another expression system for production of Mucor rennin in Saccharomyces cerevisiae was also established.
(5) The greatest differences between experimental and control cheeses (produced with rennin) in the contents of the above-mentioned constituents were observed within the first 30 days.
(6) The lactogenic response of mouse mammary gland explants to human placental lactogen (hPL) and ovine pituitary prolactin (oPRL) was examined on days 10 to 18 of pregnancy by measuring 3H-amino acid incorporation into calcium-rennin precipitable casein.
(7) Activation of the four separate components of prochymosin (prorennin) at pH 5.0 demonstrated that each zymogen was the precursor to an electrophoretically distinct chymosin (rennin).
(8) Polyacrylamide-gel electrophoresis confirmed the chromatographic results, but crystalline rennin was shown to consist of four bands.
(9) This was done using the yeast GAL7 promoter and the prepeptide sequence of a fungal aspartic proteinase, Mucor pusillus rennin (MPR).
(10) The curves were characteristic of a limited, specific attack by rennin on these proteins.
(11) The stomach of newborn pig contains a proteinase that is immunologically closely related to calf chymosin (rennin) (EC 3.4.23.4.).
(12) It is concluded that a I:I mixture of porcine pepsin and rennin may be used for the production of small medium hard cheeses without impairing their quality of nutritive value.
(13) Both milk-clotting proteases have their optimum activity at pH 5.2 and 45 degrees C. The microbiological rennin has a second maximum activity at pH 3.5 and 55 degrees C. Temperatures above 55 degrees C cause a rapid decrease of activity.
(14) The prepro-peptide of fungal aspartic proteinase, Mucor pusillus rennin, is useful as a secretion leader for efficient secretion of human growth hormone (HGH) from Saccharomyces cerevisiae.
(15) Comparative studies have been made on the effects of diazoacetyl-DL-norleucine methyl ester (DAN), 1,2-epoxy-3-(p-nitrophenoxy)propane (EPNP) and pepstatin on acid proteases, including those from Acrocylindrium sp., Aspergillus niger, Aspergillus saitoi, Mucor pusillus, Paecilomyces varioti, Rhizopus chinensis, and Trametes sanguinea, and also porcine pepsin [EC 3.4.23.1] and calf rennin [EC 3.4.23.4] for comparative purposes.
(16) Simple, reliable procedures for the assay of pepsin and rennin-like enzyme activities are described as a means of identifying gastric fluid-containing samples in forensic science laboratories.
(17) Aspergillus flavus produced extracellularly an active rennin-like enzyme when grown aerobically in whey media.
(18) When anti-sera to bovine pepsinogen and chymosin (rennin) was used, immunoreactive tumor cells were found in 12 of 23 gastric adenocarcinomas irrespective of the tumor subtype, degree of differentiation, or the presence or absence of intestinal metaplasia in the adjacent gastric mucosa.
(19) Calf Chymosin and a fungal protease from Mucor pusillus (Mucor rennin) are members of the aspartic proteinases used as milk-coagulants in cheese industry.
(20) The role of individual amino acid residues in the 98-102 and 111-112 regions of bovine kappa-casein in its interaction with the milk-clotting enzyme chymosin (rennin) was investigated.