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Article
1 - Nutritional Value of BRS Capiaçu Grass (<i>Pennisetum purpureum</i>) Silage Associated with Cactus Pearاف.پی. مونکااُ و.ر. روچاجونیور جی.تی. سیلوا ن.جی. دِجسوس اُ.اف.سی. مارکواِس جی.پی.اس. رگوئیرا ای.سی.جی. سالس آ.آ.جی. سیلوا جونیور د.د. آلوز سی.سی.سی. کاروالهو و.م. گومس د.ب. لیلRasht Branch, Islamic Azad University, Rasht, Iran , Issue 1 , Year , Winter 2020The objective of this study was to evaluate the best level of inclusion of cactus pear in the ensiling of elephant grass Brazil seeds (BRS) capiaçu (Pennisetum purpureum), its effects on fermentative characteristics; and nutritional value. Experimental treatments MoreThe objective of this study was to evaluate the best level of inclusion of cactus pear in the ensiling of elephant grass Brazil seeds (BRS) capiaçu (Pennisetum purpureum), its effects on fermentative characteristics; and nutritional value. Experimental treatments consisted of BRS capiaçu grass silage with five levels of inclusion of cactus pear (0, 5, 10, 15 and 20% inclusion as fresh basis) during ensiling. A completely randomized design with five treatments and six replicates was used. The inclusion of cactus pear in BRS capiaçu grass silage did not alter the pH of the ensiled mass (P=0.18), mean of 3.8. The marginal variation between the highest cactus pear inclusion dose and the control group (without cactus pear) for effluent was 50.33%, mean of 1.06% for each percentage unit of cactus pear inclusion. The ash content (P=0.79), total carbohydrates (P=0.30), total digestible nutrients (P=0.79), neutral detergent insoluble protein (P=0.66) and ether extract (P=0.42) did not change with the inclusion of cactus pear, being the averages of 8.01, 2.53, 3.14, 11.74, 80.88 and 44.69%, respectively. In vitro digestibility of dry matter (p <0.01) and neutral detergent fiber (p <0.01) increased linearly with the inclusion of cactus pear. The inclusion of up to 5% of cactus pear in silage BRS capiaçu grass improves the fermentation characteristics and the nutritional value of silage. Manuscript profile -
Article
2 - Ingestive Behavior of Heifers Feeding with Marandu Grass Silageگ.آ. مندس و. روکا جونیور ج.ر.م. راس ف. وییرا سیلوا ف.پ. مونکائو د.آ. سیلوا پ.ف. سانتانا گ.س.س. دیویدRasht Branch, Islamic Azad University, Rasht, Iran , Issue 1 , Year , Winter 2019The present study was aimed at assessing the ingestive behavior of ¾ Zebu × Holstein heifers confined to different levels of substitution of sorghum silage by marandu grass silage. Twenty heifers were used with initial average weight of 346.25 kg, divided i MoreThe present study was aimed at assessing the ingestive behavior of ¾ Zebu × Holstein heifers confined to different levels of substitution of sorghum silage by marandu grass silage. Twenty heifers were used with initial average weight of 346.25 kg, divided into completely randomized experimental design with 5 repetitions and the following treatments: treatment 1) roughage fraction of the diet composed of 100% of sorghum silage; treatment 2) roughage fraction of the diet composed of 70% of sorghum silage and 30% of marandu grass silage; treatment 3) roughage fraction of the diet composed of 30% of sorghum silage and 70% of marandu grass silage and treatment 4) roughage fraction of the diet composed of 100% of marandu grass silage. Concentrate was provided (25.25% soybean meal, 73.44% ground corn and 1.31% mineral mixture, based on natural matter), made calculations for ingestion of 1.2% of the live weight. Visual observations were accomplished for determination of ingestive behavior, every 21 days. The substitution of sorghum silage by marandu grass silage increased time with feeding, it did not affect time with rumination, time of chew, number of chews a day nor number of meals a day, but it resulted in lower feed efficiency, without interfering in the rumination efficiency of dry matter (DM) and neutral detergent insoluble fiber (NDF). Manuscript profile
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