196,016 research outputs found
Erratum: "Qualità delle carni di cinghiale allevato e selvatico" (Progress in Nutrition (2007) vol. 9 (4)(248-252))
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The influence of pregnancy and the beginning of lactation on pelage traits in cashmere goats
No full textThe aim of this study was to investigate the effect of pregnancy followed by the beginning of lactation on fibre traits in
cashmere goats. Two groups of cashmere-bearing goats aged between 2-3 years were used. The control group (A) included
12 non-lactating, non-pregnant subjects. The experimental group (B) included 12 goats mated during the first week
of June, in order to have pregnancy and the beginning of lactation coincide with the period when cashmere normally
grows. As expected, Liveweight significantly varied in Group B during the last two months of pregnancy, when foetal
growth reaches its maximum, and following delivery. Hair patch weight, because of the continuous growth of primary and
secondary fibres, increased significantly during the trial (P<0.001). The physiological status considered negatively affected
(P<0.05) the total mean growth rate of cashmere fibres and, as a result, their length. Cashmere daily growth rate
values varied significantly (P<0.05) throughout the experiment, while the effect of the physiological status was noted
only in November – December. Furthermore, this parameter also seems to be influenced by climatic factors and, in particular,
environmental temperature, as shown by the negative correlation (r = - 0.28; P<0.05) between cashmere daily
growth rate and environmental temperature. Guard hair length and growth rate did not differ between the two groups,
however, they were influenced by time. Cashmere yield and cashmere production were lower in group B (P<0.05). No
differences between groups were observed for cashmere diameter. Overall, pregnancy and the consequent period of lactation
negatively influenced cashmere rather than guard hair fibres. These negative effects were noted in quantitative
terms as yield and production dropped by 37% and 43%, respectively. We hypothesise that the complete overlap of pregnancy
and lactation with the period of cashmere growth reduced the number of secondary active follicles and their degree
of activity and caused an increase in competition for the partitioning of nutrients between hair follicles and the gravid
uterus, first, and then the mammary gland, later
Nutrutional quality of meats from young fallow deer (Dama dama) of different ages
No full textTwelve male fallow deer (Dama Dama) were slaughtered at 3, 6 and 12
months of age. The productive performances of the animals and the most si
gnificant quantitative and qualitative traits on carcasses and meats were asses
sed. Four animals were slaughtered at 90 days of age, the others, allotted to
two groups of four animals each, at 6 and 12 months, respectively. Ali the
animals were kept in paddocks where, besides pasture, they received a supple
mentary feed 500 g/heaclld on the average. From the data available it emer
ges that the 6-month-old fallow deer as compared to the 12-month-old
bucks, present better gains and a reduced chilling loss of the carcass, the cuts
of which into leg and loin and their lean fractions do not differ as to age.
Moreover, the meats of these animals always in comparison with the 12
month-old bucks do not differ for "a" redness, "L" lightness as well as chemi
cal composition. The meats are also less tough, less resistant and with reduced
quantities of free water. At last, the fat extracted from the meat of 6-month
old fallow deer vs the older ones, in spite of a greater content in unsaturated,
polyunsaturated and monounsaturated fatty acids, the differences of which
have no statistical value, is even richer in 0)6 and poorer in 0)3 fatty acids
Quality of the meat of wild and raised wild boar
No full textIn order to study the meat quality of wild boars and in particolar their fatty acid composition 8 carcasses of male wild boars have been analized, 4 of which come from hunting territorle and the remaining 4 reared in outdoor pens, till 9 months of age. Every right half part, of each carcass, has been divided into commercial cuts and from each of them a sample of I "Longissimus dorsi," has been taken, on which chemical and physical analises have been carried out. On the fat extracted from this muscle, tha fatty acid composition has been determined. Our results show that the cooked meat of wild wild boars have the highest (P < 0,05) presence of omega 3 (2,28% vs 1,13%) and, even if without significance, the best ratio omega 6/omega 3 (7,07 vs 10,04) and the highest percentage presence of omega 6 (15,63% vs 10,48%). Moreover the cooked meat of wild animals has been showed the best (P < 0,05) TI (0,96 vs 1,39), and the best ratio unsaturated/saturated (1,76 vs 1,32); saturated/polyunsaturated (2,13 vs 4,05) and PCL/PCE (1,72 vs 1,25), even if they are not significant
The influence of pregnancy and the beginning of lactation on pelage traits in cashmere goats
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Aspetti quanti-qualitativi delle carni di vitelloni podolici puri ed F1 alimentati con razioni contenenti buccette d'uva
No full textChemical and acidic characteristics of meat of Podolian bulls slaughtered at different ages
No full textDr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
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