Twenty goats were given a basal feed of Pennisetumpurpureum cv Mott (odot grass) and supplemented with protein-based feed ingredients namely calliandracalothyrsus and soybeanmeal (SBM). The proportion of calliandra feed substitution and soybeanmeal is T1 = odot grass (ad libitum) + 100% soybeanmeal; T2 = odot grass (ad libitum) + 25% calliandra + 75% soybeanmeal; T3 = odot grass (ad libitum) + 50% calliandra + 50% soybeanmeal; T4 = odot grass (ad libitum) + 75% calliandra + 25% soybeanmeal; and T5 = odot grass (ad libitum) + 100% calliandra. The amount of feed supplementation given is based on daily protein requirements (gram/DM) per day according to animal body weight. The feed given contained iso protein (CP) and iso energy (TDN) to determine the effect of substitution of soybeanmeal with calliandra The parameters observed were intake and nutrient digestibility of feed. Data obtained from the results of the study analyzed variance using a one-way analysis of variance, then if the results show significant differences, it will be analyzed further with Duncan's new multiple range test. The results showed that substitution of calliandra did not have a significant effect (P> 0.05) on nutrient intake (g/kg BB0,75/day), except for intake of ETN, it shows a significant effect (P< 0.05). Calliandra substitution had a significant effect (P<0.05) on feed nutrient digestibility, with the highest digestibility being T2 treatment (25% calliandra substitution).
The aim of the study was to evaluate the use of Calliandra leaves (Calliandra calothyrsus) as a protein source in the Kacang goat’s diet and as an alternative to substitute the use of soybean meal (SBM) in goat’s diets. The proportion of C. calothyrsus feed substitution and SBM is T1 = odot grass (ad libitum) + 100% SBM; T2 = odot grass (ad libitum) + 25% C. calothyrsus + 75% SBM; T3 = odot grass (ad libitum) + 50% C. calothyrsus + 50% SBM; T4 = odot grass (ad libitum) + 75% C. calothyrsus + 25% SBM; and T5 = odot grass (ad libitum) + 100% C. calothyrsus. The last 10 days, collections was conducted include total collections of feeding, the residue of the feed, and feces. The parameters observed were intake and nutrient digestibility of dry matter (DM), crude protein (CP), neutral detergent insoluble nitrogen (NDIN) (% CP), and acid detergent insoluble nitrogen (ADIN) (% CP). Data obtained from the study were analyzed using a one-way analysis of variance, then if the results show significant differences, it will be analyzed further with Duncan's new multiple range test. The results showed that C. calothyrsus substitution treatment of 25 to 100% (T2, T3, T4, T5) gives noticeable influence (P<0.05) for nutrient intakes, excretion (feces), and digested nutrients. The highest intake and digestible fraction of N-NDF, N-ADF, NDIN, and ADIN is the T5 treatment, which is the replacement of SBM with 100% C. calothyrsus (P<0.05).
This study evaluated the use of Calliandra leaves (Calliandra calothyrsus) as a protein source in substituting soybean meal (SBM) in goat’s diet. Twenty female Kacang goats were used in the study.. Goats were randomly plotted into three diets treatments those were T1 = odot grass + 100% SBM; T2 = odot grass + 25% Calliandra + 75% SBM; T3 = odot grass + 50% Calliandra + 50% SBM; T4 = odot grass + 75% Calliandra + 25% SBM; and T5 = odot grass + 100% Calliandra. Grass was offerred ad libitum, whereas protein sources supplementation was based on daily protein requirements of animal. Data were collected at last 10 days of experiment, including feed intake, feed refusal, and feces. Sampels were analyzed for crude fiber (CF), neutral detergent fiber (NDF), acid detergent fiber (ADF), and hemicellulose contents. Data were analyzed using one-way analysis of variance, and furtherly analyzed by Duncan’s multiple range test. Results showed that substituting of SBM with Calliandra did not have a significant effect (P>0.05) on the intakes of fiber fraction, but fiber digestibility was significantly affected (P<0.05) by treatment. The highest digestibilities of CF, NDF, and ADF were found in T1 and T2.
Penelitian ini bertujuan untuk mengevaluasi kinerja itik lokal berdasarkan umur potong sehingga dapat membantu pengembangan itik lokal kedepannya. Pemeliharaan dan pemotongan itik Cihateup, Laboratorium Lapangan Institut Pertanian Bogor (IPB). Data konsumsi pakan, bobot badan, konversi pakan, persentase bobot karkas, persentase daging-tulang-kulit dada dan paha diuji dengan analisis ragam kemudian dilanjutkan dengan uji jarak berganda Duncan menggunakan software SAS versi 9.3 (32) . Hasil penelitian ini menunjukkan bahwa berat dada dan persentase potong payudara terhadap bobot hidup pada umur 4, 8 dan 12 minggu berturut-turut adalah 72,41 ± 1,74 g ekor-1 (14,88 ± 0,27%); 180,89 ± 3,20 g ekor-1 (15,94 ± 0,30%); 286,41 g ekor-1 (18,42 ± 0,32%). Bobot paha dan persentase paha terhadap bobot hidup potong pada umur 4, 8 dan 12 minggu berturut-turut adalah 93,45 ± 3,50 g ekor-1 (19,32 ± 0,55%); 181,12 ± 6,49 g ekor-1 (15,93 ± 0,58%); 249,87 ± 8,51 g ekor-1 (16,08 ± 0,58%). Kesimpulannya persentase dada dan paha itik Cihateup yang dipotong pada umur 4, 8 dan 12 minggu berpengaruh nyata terhadap bobot hidup. (P<0,05). Semakin tua umur potong, persentase dada itik umur 8 dan 12 minggu berpengaruh nyata, tetapi persentase paha itik umur 8 dan 12 minggu tidak berpengaruh nyata.
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