O trabalho foi realizado com o objetivo de determinar o melhor nível de inclusão da torta de dendê no concentrado com base na avaliação da morfometria da mucosa ruminal em cordeiros Santa Inês. O período experimental foi de 80 dias, sendo o feno de tifton-85 utilizado na proporção 50 volumoso:50concentrado. O alimento foi ofertado às 9h00 e 16h00. Foram empregados 32 ovinos da raça Santa Inês, entre 4 e 6 meses e peso corporal de 22 ± 2,75kg. O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos e oito repetições. Os tratamentos constituíram-se nos níveis de inclusão da torta de dendê (0,0; 6,5; 13,0 e 19,5 %) na matéria seca da ração. As variáveis avaliadas na mucosa ruminal foram: altura, largura, superfície, densidade papilar e espessura da túnica muscular do rúmen, nas regiões do saco dorsal e ventral. Não houve diferenças significativas na região do saco dorsal do rúmen para as variáveis analisadas com a inclusão da torta de dendê na dieta. A superfície papilar do saco ventral sofreu efeito quadrático, enquanto que a espessura da túnica muscular sofreu efeito linear decrescente. A inclusão até 19,5% da torta de dendê não teve efeito significativo sobre a morfometria das papilas podendo ser usada como alternativa na dieta de cordeiros Santa Inês. Palavras-chave: Co-produto, ovinos, papilas ruminais, ruminanteThe work was carried out to determine the best level of inclusion of palm kernel cake in the concentratebased morphometry evaluation of the ruminal mucosa in Santa Ines lambs. The experiment lasted 80 days, the Tifton-85 hay in a proportion 50 forage 50concentrado. The food was offered at 9:00 and
Midmorning urine samples were collected from 623 first- and second-grade children in four elementary schools. The mean for water F content in the residential area from which the population was drawn was 0.024 ppm (55 samples). The mean urine F concentration for all subjects was 0.42 ppm (SD = 0.22). There were no significant differences in urine F levels as a factor of sex or age. Children living in the area for no more than 1 year excreted significantly higher levels of F in the urine than did the longer-resident youngsters. This is attributed to their probable exposure to higher F levels in drinking water prior to moving into this low-F area. The urine F mean was 17.5 times that of the drinking water F. Urine F measurements, therefore, cannot be taken as indicative of F content of drinking water when the concentration in water is very low.
RESUMOObjetivou-se determinar o melhor nível de inclusão e de substituição das tortas de dendê e amendoim, respectivamente, em dietas para cabritos ½ sangue Boer, por meio da avaliação histomorfométrica das papilas ruminais. Foram utilizados 40 cabritos ½ sangue Boer, para cada período experimental, machos, não castrados, com idade aproximada de três meses e com peso inicial de 15,01±1,76kg. Os períodos experimentais constaram de 75 dias e 72 dias. As dietas consistiram de volumoso feno de Tifton-85 e de ração em mistura completa, contendo níveis de inclusão da torta de dendê nas proporções de 0,0; 7,0; 14,0; e 21,0% com base na matéria seca; e de mistura completa, contendo níveis de substituição do farelo de soja pela torta de amendoim nas proporções de 0,0; 33,0; 66,0; e 100%, constituindo-se os tratamentos. No epitélio do rúmen, foram avaliadas altura e largura das papilas, assim como densidade papilar e espessura da parede muscular do rúmen. Entre estas, a altura das papilas, no experimento com torta de amendoim, foi a única a sofrer efeito linear decrescente (P<0,0014); as demais variáveis, tanto dos animais alimentados com torta de amendoim quanto daqueles alimentados com torta de dendê, não foram afetadas pela dieta. As médias de altura encontradas foram de 2,6 e 2,3mm para as tortas de amendoim e dendê, respectivamente. Portanto, a inclusão de até 21% de torta de dendê e a substituição de 100% de torta de amendoim no concentrado de cabritos não alteraram a morfometria das papilas ruminais. Palavras-chave: caprino, papilas ruminais, coproduto ABSTRACT The aim of this study was to determine the best level of pies and replacement of palm oil and peanut, respectively, in diets of ½ blood Bôer goats from the histomorphometry of the rumen papillae. A total of
A study was conducted evaluating the effects of propionic acid plus copper carbonate (KemTRACE Cu ® , Kemin Industries, Des Moines, IA), encapsulated butyric acid (Buti-PEARL, Kemin Industries, Des Moines, IA) and a novel encapsulated butyric acid plus copper carbonate (ButiPearl C, Kemin Industries, Des Moines, IA) on the growth performance of weanling pigs. A total of 350 pigs (PIC 280 × 1050; initial BW = 5.54kg) with 10 pigs/pen and 7 replicate pens/ treatment were used in a 42 d study. Pigs were allocated in a randomized, complete block design based on initial BW. Diets were pelleted, corn-soybean meal based and similar within phase except for the additional copper and encapsulated butyric acid. All nutrient concentrations met or exceeded NRC (2012) estimates. Treatments were Control (N), 500 mg/kg ButiPEARL (B), 65 mg/kg Cu from KemTRACE Cu ® (C), 500 mg/kg ButiPEARL + 65 mg/kg C from KemTRACE Cu ® (BC); 500 mg/kg ButiPEARL C (BPC). Treatment differences were determined by LSMEANS comparisons. During d 0 to 7, no differences were observed for initial BW, ADG; ADFI (P > 0.10). Gain:feed was greatest for BC and BPC (P < 0.05). From d 7 to 21, ADG was greatest for BPC and BC (P < 0.05). Day 7 to 21 Gain:feed for C, BC; BPC was higher than N (P < 0.05). Day 21 to 42 ADG was greatest for BC (P < 0.05). Day 21 to 42 ADFI was greatest for BC and BPC (P < 0.05); gain:feed was greatest for BC (P < 0.05). From d 0 to 42, overall ADG and ADFI were greatest for BC and BPC, while N and B were lowest (P < 0.05). Overall gain:feed was greatest for BC (P < 0.05). Final BW was greatest for BC and BPC (P < 0.05). Adding BC or BPC showed the greatest growth performance improvement for pigs from d 0 to 42 after weaning.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.