Potable water can be defined as suitable for consumption, that is, free of substances andorganisms cause diseases, 1 and also without color, taste, or odor. The turbidity ofwater bodies caused by the erosion river banks during rainy season, resultingfrom misuse soil, such lack vegetation fixation. Sanitary sewage andvarious industrial effluents mining activities increases in turbidity. Oneof great challenges scientific community is to seek methodological processes thatreduce impact on...

In light of the ongoing COVID-19 pandemic and emergence new SARS-CoV-2 variants, understanding effectiveness various booster vaccination regimens is pivotal. Chile, using a prospective national cohort 3.75 million individuals aged 20 or older, we evaluate against COVID-19-related intensive care unit (ICU) admissions death mRNA-based second vaccine boosters for four different three-dose background regimes: BNT162b2 primary series followed by homologous booster, CoronaVac an mRNA ChAdOx-1...

The hypo-osmotic test has been used successfully on equine semen and was considered to be a simple accessible method which could useful addition routine analysis. It therefore of interest determine whether the is significantly correlated proposed criteria fertility. stallions were divided into two groups basis threshold levels A significant difference (P<0.05) found between for following parameters: progressive motility, morphologically normal spermatozoa, percentage swelling with test,...

The aim of the present study was two-fold. Experiment I: evaluate effect buserelin on llama's oocyte maturation after exogenous follicular activity suppression, followed by ovarian superstimulation with different doses equine chorionic gonadotropin (eCG). II: compare number follicles aspirated and cumulus-oocyte complexes (COCs) recovered according to eCG buserelin. I consisted in a control group (without buserelin) treatment (with buserelin), both subdivided dose administered: A: 500 IU; B:...

This study evaluated the effect of nutritional supplementation and socio-sexual cues upon reproductive efficiency goats exposed to male under rangeland grazing conditions (22°N). Criollo (n = 73) were distributed in four experimental groups: (1) continuous males (CM, n 19) which 2) remained together with females from 7 March 28 July; (2) supplemented (SM, 16) kept separately individually 18% crude protein 2.77 Mcal ME kg–1 DM, during a 30-day period; (3) female (SM + FE, 19), maintained...

Two experiments were conducted to determine whether exposure a photoperiod of artificial long days in autumn increased milk yield subtropical goats milked once (Exp. I) or twice daily II). In Exp. I, starting at d 10 lactation, 1 group does was kept under naturally decreasing (DD1X; n = 8), whereas the other submitted an (LD1X; 8; 16 h light:8 darkness). The kids weaned 28 after parturition, and dams manually daily. Milk components (fat, protein, lactose) assessed up 140 lactation. From 0...

We tested whether the milk yield capacity of mixed-breed goats on a Chihuahuan desert rangeland in northern Mexico during dry season affects composition, body weight gain, and weaning their progeny. Milk progeny postnatal growth performance, were recorded weekly. One week after kidding, (a mixture Criollo × dairy breeds; n = 40) allotted into medium (MP) or low (LP) yielding groups (20 per group). Mean 105-d total for MP LP was 45.2 ± 12.5 20.7 5.2 L, respectively. lactose (4.3 vs. 4.2%)...

Para determinar la producción y calidad del forraje de mezcla veza común con cebada, avena, triticale en dos proporciones semilla (65:35; 35:65) durante cuatro etapas fenológicas, se estableció un experimento diseño bloques completos al azar arreglo factorial (3x4x4) repeticiones. En mezclas cultivos mayor materia seca (MS) obtuvo asociación avena-veza 16.6 t ha-1 proporción (65:35) produjo 19.9 ha-1, etapa grano masoso (P&lt;0.001). La cantidad proteína cruda obtuvieron las (178 g kg-1 MS)...

In confined management systems, well-nourished bucks rendered sexually active by exposure to long days are efficient in fertilizing out-of-season goats. However, underfeeding is common semi-extensive systems and may reduce the reproductive efficiency of bucks. The objective present study was determine whether nutritional supplementation improved sexual activity submitted their ability stimulate reproduction goats or conditions. experiment 1, three groups were placed different flocks grazed...

SUMMARY The objective of the current study was to determine whether exposure an artificial long-day photoperiod increases milk production in subtropical goats maintained under extensive grazing conditions, with or without presence a nutritional supplement. Forty-four lactating were exposed natural (11 h light) supplementation (NDS; day supplemented group; n =11) (NDN; non-supplemented (16 (LDS; (LDN; =11). Daily consisted mixture 300 g rolled maize and 200 soya bean per animal. During...

Osteoporosis represents an imbalance between bone formation and resorption. As a result of low estrogen levels, it is markedly prevalent during menopause, thus making such patients susceptible to fractures. Both resorption are modulated by nitric oxide (NO). Currently, there no risk-free pharmaceutical prevention therapies for osteoporosis. COMB-4, nutraceutical combination Paullinia cupana, Muira puama, ginger, L-citrulline, known activate the NO-cGMP pathway, was reported accelerate...

The present study tested whether feeding ewes during the last third of pregnancy with cladodes Opuntia (untreated or protein-enriched), as an alternative to alfalfa hay, would improve milk yield well pre- and post-natal growth their lambs. Sixty mature Rambouillet progeny were randomly allocated among three nutritional treatments: (i) Control, fed alfalfa; (ii) Opuntia, untreated cladodes; (iii) E-Opuntia, protein-enriched (pre-treated urea ammonium sulphate). Birth weight did not differ...

Abstract This study was designed to determine whether any relationship exists between exposure artificial long days, milk yield, maternal plasma insulin‐like growth factor 1 (IGF‐1) levels, and kid rate in goats. One group of lactating goats maintained under naturally decreasing day length (control group; n = 19), while another one, they were kept days (LD 19). Milk yield higher from the LD than that control ( P &lt; 0.05). Maternal IGF‐1 levels at 57 lactation 0.05) positively correlated...

The last third of gestation is a period high energy and protein demand for the dam to support fetal growth following onset lactation. Methionine an essential amino acid that contributes formation, development, milk synthesis; thus, likely have positive effects on weight size newborn and, afterward, yield composition, which may improve patterns progeny. To test these hypotheses, we used 60 pregnant multiparous Alpine goats with similar live weights gestational ages (~Day 100 pregnancy; Mean ±...

The effects on spontaneous ovulation associated with the unilateral or bilateral sectioning of superior ovarian nerves (SON) were analyzed in guinea pigs at different time intervals estrous cycle. Day 1 cycle was defined as day when animal presents complete loss vaginal membrane (open vagina). Subsequent phases determined by counting days after 1. All animals autopsied fifth surgery. Sectioning right, left, both SONs 5 (early luteal phase) resulted a significant increase number fresh corpora...

The incidence of squamous cell carcinoma the anal canal has been increasing over last 30 years. HIV found to be a risk factor for development this disease; radio-chemotherapy (RTCT) may also more toxic than in HIV-negative patients. study aims at assessing whether there are any differences terms toxicity between HIV-positive and patients treated with concomitant RTCT.Search MEDLINE, EMBASE, CENTRAL (via Cochrane Library-Wiley), DARE, LILACS bibliographic databases. Experimental analytical...