Performance, hepatic function and efficiency of nutrient utilisation of grazing dairy cows supplemented with alkaline-treated Jatropha curcas L. meal

2018 ◽  
Vol 58 (12) ◽  
pp. 2280 ◽  
Author(s):  
Jocely G. Souza ◽  
Lucas M. G. Olini ◽  
Claudio V. Araujo ◽  
Simone Mendonça ◽  
Joanis T. Zervoudakis ◽  
...  

Jatropha meal is an emergent source of protein for ruminant feed, but the presence mainly of phorbol esters limits its use. We hypothesised that alkaline treatment of Jatropha curcas L. meal will reduce phorbol esters and allow its use as a concentrate supplement for dairy cows. We evaluated the effects of four levels of Jatropha meal treated with 70 g of sodium hydroxide/kg [JMT; 0.145 mg phorbol ester g/kg dry matter (DM)] in a concentrate supplement (0, 100, 200 and 300 g/kg DM; 4 kg cow/day as fed) on performance and efficiency of nutrient utilisation in grazing dairy cows. The alkaline treatment reduced the phorbol esters content of the toxic Jatropha meal by 67.7%. The JMT level linearly reduced the supplement intake (P < 0.01), but it did not affect pasture intake (P = 0.73) or blood hepatic transaminase (P > 0.10). As a result, the JMT level linearly reduced apparent total-tract nutrient digestibility (P ≤ 0.05), ruminal microbial protein synthesis (P = 0.05) and milk yield (P < 0.01). However, it did not affect milk composition (P > 0.05) and nitrogen balance (P = 0.29). Alkaline treatment substantially reduces the phorbol ester in Jatropha meal by 67.7%, but its inclusion in supplements reduces diet digestibility and performance of dairy cows.

2021 ◽  
Vol 226 ◽  
pp. 00020
Author(s):  
Hany Handajani ◽  
Riza Rahman Hakim ◽  
Ganjar Adhywirawan Sutaro ◽  
Boy Ronald Mavuso ◽  
Zhong–Wen Chang ◽  
...  

The application of fermentation is one of methods to increase food quality biologically. Availability of Jatropha curcas residual from oil factory be focused as a soybean meal or fish meal replacement. On the other hand, J. curcas residuals possess a toxic compound as well. This study aimed to examine the effect of Aspergillus niger on the nutrition and harmful content of J. curcas as a potential ingredient of feed. In brief, J. curcas residual was fermented with a detoxification method at 3 d, 5 d, and 7 d. Crude protein, fat, and crude fiber content were assessed to discover the biological responses of J. curcas post–fermentation while phorbol ester was evaluated to toxic content post–detoxification. The results showed that crude protein and fat content were highest on 7 d post–fermentation but it was no significant difference (p > 0.05). While crude fiber content showed significant difference which the 3 d fermentation had the highest content of fiber. For phorbol ester content, 3 d fermentation showed a better result than the control group (p < 0.05). The present findings suggest that A. niger is recommendable as starter to reduce fiber and toxic content of J. curcas residual at 3 d fermentation.


2014 ◽  
Vol 3 (3) ◽  
pp. 71-76 ◽  
Author(s):  
Chusnul Hidayat ◽  
Pudji Hastuti ◽  
Siti Utazmi ◽  
Avita Kusuma Wardhani ◽  
Dinar Surya Pradipta

Author(s):  
N. Suphrap ◽  
C. Wachirapakorn ◽  
C. Thamrongyoswittayakul and C. Wongnen

This study was conducted to investigate the effect of vegetable oil and yeast fermented cassava pulp (YFCP) supplementation on feed intake, nutrient digestibility and rumen fermentation in Thai Friesian dairy cows (Thai native x Holstein Friesian). Eight Thai Friesian dairy cows (447±44 kg.BW) were assigned to 4×4 double latin square design (DLSD) with two sources of oil i.e. palm oil (PO) or soybean oil (SBO) and four levels of YFCP (0, 5, 10 and 20%DM) in the dietary treatments. All cows received total mixed ration (TMR) comprised of rice straw to concentrate at a ratio of 40:60. The results showed that supplementation of SBO had lowered feed intake, nutrients digestibility, metabolize energy intake (MEI), total digestible nutrient (TDN) and methane emission than PO treatment. However, cows received SBO had greater total volatile fatty acid (TVFA), propionic acid (C3), butyric acid (C4) than cows received on PO (P less than 0.05). In addition, supplementation of YFCP at 10%DM in the diet as an optimum level in dairy cow diets (P greater than 0.05). Finally, the interaction between the addition of SBO and YFCP at 10%DM (SBO+YFCP) had a positive effect on enhancing ether extract intake (EEI) in dairy cows.


2014 ◽  
Vol 117 (3) ◽  
pp. 372-374 ◽  
Author(s):  
Chusnul Hidayat ◽  
Pudji Hastuti ◽  
Avita Kusuma Wardhani ◽  
Lana Santika Nadia

2011 ◽  
Vol 11 (1) ◽  
pp. 107-110 ◽  
Author(s):  
Cândida R. M. de Barros ◽  
Luis M. M. Ferreira ◽  
Fernando M. Nunes ◽  
Rui M. F. Bezerra ◽  
Albino A. Dias ◽  
...  

Agromet ◽  
2009 ◽  
Vol 23 (1) ◽  
pp. 20 ◽  
Author(s):  
Gusti Rusmayadi ◽  
Bregas Budianto

<p>Management strategies development for efficient water utilization of crop production requires sensitive measurements of changes in soil water content on a dynamic basis. Many of the methods currently used for measuring these changes are destructive, slow, or relatively expensive for large-scale investigations. A sensor that low-cost, nondestructive soil moisture sensor for measuring changes in soil volumetric water content on the basis of changes in the dielectric constant of the soil water were available. So, this research was carried out to quantify soil water content on Jatropha under rainfall condition, four levels of nitrogen fertilizer (N) and two population densities (P). The experiments used a systematic Nelder fan design with 9 spokes and 4 rings were conducted at SEAMEO-BIOTROP field experiment in 2007. Based on evaluation this instrument can use to measurement soil water content in various environment.</p>


2011 ◽  
Vol 49 (10) ◽  
pp. 1183-1190 ◽  
Author(s):  
Wei He ◽  
Andrew J. King ◽  
M. Awais Khan ◽  
Jesús A. Cuevas ◽  
Danièle Ramiaramanana ◽  
...  

Author(s):  
G. Raja Krishna Kumar ◽  
V. A. Bapat ◽  
T. Sudhakar Johnson

Sign in / Sign up

Export Citation Format

Share Document