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1.
J Anim Physiol Anim Nutr (Berl) ; 100(2): 294-300, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26249003

ABSTRACT

Previous research on energy requirements of female Saanen goats, using the factorial approach, has not considered the specific requirements for maintenance and growth during the pubertal phase. Thus, the purpose of this study was to estimate energy requirements for maintenance (Trial 1) and growth (Trial 2) of non-pregnant and non-lactating female Saanen goats at the pubertal phase from 30 to 45 kg. In Trial 1, the net energy requirements for maintenance (NEm ) were estimated using 18 female Saanen goats randomly assigned to three levels of intake: ad libitum, and 70% and 40% of ad libitum intake. These animals were pair-fed in six slaughter groups, each consisting of one animal for each level of intake. In Trial 2, the net energy requirements for growth (NEg ) were estimated using 18 female Saanen goats, which were fed ad libitum and slaughtered at targeted BW of 30, 38 and 45 kg. The NEm was 52 kcal/kg(0.75) of BW. The NEg increased from 3.5 to 4.7 Mcal/kg of BW gain as BW increased from 30 to 45 kg. Our results suggest that the guidelines of the major feeding systems for the entire growth phase may not be adequate for females at pubertal phase.


Subject(s)
Animal Feed/analysis , Diet/veterinary , Energy Metabolism/physiology , Goats/growth & development , Sexual Maturation/physiology , Animal Nutritional Physiological Phenomena , Animals , Energy Intake/physiology , Female
2.
Arq. bras. med. vet. zootec ; 65(5): 1561-1569, out. 2013. ilus, tab
Article in Portuguese | LILACS | ID: lil-689777

ABSTRACT

O objetivo do presente trabalho foi avaliar as proporções de cortes comerciais, tecidos do lombo e composição da carne de cabritos de cinco grupos raciais: Alpino, ½ Boer + ½ Alpino (½ BA), ½ Anglo Nubiano + ½ Alpino (½ ANA), ¾ Boer + » Alpino (¾ BA), » Boer + » Alpino + ½ Anglo Nubiano (Tricross), submetidos a três pesos de abate (25, 30 e 35kg) em sistema de confinamento, com utilização de dieta completa. O cruzamento das raças Boer e Anglo Nubiana com fêmeas Alpinas apenas melhorou, nos cabritos, os rendimentos de cortes considerados de terceira categoria, como pescoço e costela. Pesos corporais de abate entre 30 e 35kg devem ser preferidos por aumentarem a proporção de lombo, reduzirem a proporção de pescoço nos Alpinos e aumentarem a de perna em Alpinos e ¾ Boer, além de proporcionarem quantidades adequadas de músculo e gordura intermuscular.


The purpose of this study was to evaluate the commercial cuts, loin tissues and composition proportions in meant from five racial groups: Alpine, ½ Boer + ½ Alpine (½ BA), ½ Anglo Nubian + ½ Alpine (½ ANA), ¾ Boer + » Alpine (¾ BA), » Boer + » Alpine + ½ Anglo Nubian (Tricross), submitted to three slaughter weights (25, 30 and 35kg) in feedlot, using a complete diet. The crossing of Boer and Anglo Nubian with Alpine females only improved, in kids, the yield of cuts considered third category such as neck and rib. Slaughter body weights between 30 and 35kg should be preferred due to increase in the proportion of the loin, reduction in the proportion of the neck in Alpine and increase in the leg in Alpine and ¾ Boer, beyond the appropriate amounts of intermuscular fat and muscle.


Subject(s)
Animals , Milk , Abattoirs/statistics & numerical data , Courtship , Ruminants
3.
J Hum Hypertens ; 27(6): 345-8, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23303400

ABSTRACT

The systemic oxidative status in hypertensives disorders of pregnancy (HDP) and its association with endothelial dysfunction is controversial. In the present study, we evaluated systemic plasma levels of oxidative stress markers (TBARS (thiobarbituric acid-reactive substances) and carbonyl) and total antioxidant status (FRAP (ferric reducing ability of plasma (ferric reducing/antioxidant power) and reduction of MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide))), as well as assessed the impact these markers have on nitric oxide (NO) status in healthy pregnant (HP, n=38), gestational hypertensive (GH, n=33) and preeclamptic pregnant women (PE, n=28). We found similar values of TBARS among all groups, and reduced carbonyl levels in HDP between the PE and GH. Conversely, significant increases in plasma activity of antioxidant status were observed in the GH and PE groups compared to the HP group (using both MTT or FRAP method). Importantly, HDP present significantly lower nitrite levels compared to HP women. In Conclusion, our findings show a compensatory antioxidant mechanism against reactive oxygen species (ROS) generation in HDP, which is not associated with nitrite levels restoration.


Subject(s)
Hypertension, Pregnancy-Induced/metabolism , Hypertension/metabolism , Nitric Oxide/metabolism , Oxidative Stress , Adult , Biological Availability , Biomarkers/blood , Female , Humans , Hypertension/blood , Pregnancy
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