EFFECTS OF AMMONIATION OF CANOLA SEED CONTAMINATED WITH WILD MUSTARD SEED ON GROWTH, FEED UTILIZATION AND CARCASS CHARACTERISTICS OF PIGS

1987 ◽  
Vol 67 (1) ◽  
pp. 113-125
Author(s):  
J. M. BELL ◽  
M. O. KEITH ◽  
C. S. DARROCH ◽  
D. I. McGREGOR
Keyword(s):  
Fatty Acids ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Feed Utilization ◽  
Mustard Seed ◽  
Canola Seed ◽  
Dietary Level ◽  
Wild Mustard ◽  
Feeding Diets ◽  
Daily Gain

Ammoniation (NH3) of canola seed (CS) containing wild mustard seed (WMS) present as a contaminant resulted in reduction of CS glucosinolates but not of WMS hydroxybenzyl glucosinolate or lysine contents. Feeding diets containing 25% CS including 0, 3, 6 and 9% WMS to crossbred barrows from 23 to 57 kg had no effects on average daily gain (ADG) or daily feed intake (FI) but feed:gain ratio (FG) was poorer. Serum triiodothyronine (T3) was unaffected but thyroxine (T4) was depressed by WMS, a result of hydroxybenzyl glucosinolate intake. FI was improved by NH3. This was attributed to reduced concentrations of sinapine and glucosinolates in CS and WMS. Barrows fed from 57 to 100 kg liveweight showed no effect of dietary level of WMS on ADG or FG but 7.2 and 10.8% WMS resulted in leaner carcasses than with 0% WMS. Use of 30% CS in the diet, regardless of WMS level, resulted in fatty acid changes in backfat compared with the control diets. Fatty acids C14, C16, C16:1 and C18 were reduced and C18:1, C18:2 and C18:3 were increased by consuming diets containing 10–12% oil from CS and WMS. Gilts (57–100 kg) fed diets containing 0.2 and 10.5% WMS in CS fed at 30% of the diet had similar ADG but gilts fed the high WMS diet produced leaner carcasses. Key words: Canola seed, wild mustard, pigs, feeding, glucosinolates, fatty acids

GROWTH, FEED UTILIZATION AND CARCASS QUALITY RESPONSES OF PIGS FED FROST-DAMAGED CANOLA SEED (LOW-GLUCOSINOLATE RAPESEED) AS AFFECTED BY GRINDING, PELLETING AND AMMONIATION

1986 ◽  
Vol 66 (1) ◽  
pp. 181-190 ◽  
Author(s):  
J. M. BELL ◽  
M. O. KEITH
Keyword(s):  
Control Diet ◽  
Average Daily Gain ◽  
Frost Damage ◽  
Feed Utilization ◽  
Canola Seed ◽  
Initial Weight ◽  
Feeding Value ◽  
Available Lysine ◽  
Feeding Trials ◽  
Daily Gain

Canola seed (CS) having 20, 45 and 65% frost damage was fed at dietary levels up to 30% to 144 pigs of 23 ± 1 kg initial weight to determine the effects of processing on feeding value. In exp. 1, 10, 20 and 30% levels of each lot of CS were fed to barrows (M) and gilts (F) up to 100 kg liveweight. Average daily gain (ADG) increased with increasing frost damage (0.75, 0.77, 0.78 kg). Similarly, feed intake (FI) increased (2.19, 2.27 and 2.35 kg day−1). Feed-adjusted ADG were equal. ADG and FI were reduced at the 30% level in diet compared with 10%. A palatability effect is postulated. Glucosinolate levels declined with increasing frost damage. In exp. 2, 45% frost-damaged CS was fed at 30% of the diet to M and F pigs up to 57 kg liveweight to compare whole vs. ground CS, fed as meal or pellets. Grinding depressed FI but not ADG. Pelleting improved ADG but not FI. Both processes improved feed:gain ratio. In exp. 3, diets containing 45% frost-damaged, ground CS, with and without ammoniation (0.5% NH3), were compared with a control diet supplemented with soybean and canola meals by feeding to M and F pigs up to 100 kg liveweight. ADG and FI of pigs fed CS were below both the controls and pigs fed the ammoniated CS. Ammoniation had minor effects on amino acid and available lysine content but improved FI and ADG. Carcass index values were unaffected by either level or treatment of CS. Key words: Rapeseed, canola, processing, feeding trials, pigs, freezing

Effects of feeding wheat middlings on production, digestibility, ruminal fermentation and carcass characteristics in beef cattle

2003 ◽  
Vol 83 (3) ◽  
pp. 551-557 ◽  
Author(s):  
D. R. ZoBell ◽  
L. A. Goonewardene ◽  
K. C. Olson ◽  
C. A. Stonecipher ◽  
R. D. Wiedmeier
Keyword(s):  
Fatty Acids ◽  
Beef Cattle ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Ruminal Fermentation ◽  
Total Volatile ◽  
Wheat Middlings ◽  
Daily Gain

Studies were conducted to compare the feed value of wheat middlings (WM) to cereal grains in rations with varying concentrate to roughage levels. In two separate studies, weaned heifers and steers were fed corn silage/alfalf a hay-based growing diets where the concentrate source was either a control diet consisting of rolled barley (heifers) or rolled corn (steers) versus WM, over an 84-d period. In a 107-d study, finishing steers were fed treatments that consisted of rolled corn (C) plus either 35% wheat middlings (WM35) or 50% wheat middlings (WM50). A single cross-over designed digestibility study was also conducted utilizing four cannulated yearling heifers fed either a corn or WM50 diet from the finishing steer study. Results from the heifer and growing and finishing steer studies showed that average daily gain (ADG), dry matter intake (DMI) and feed efficience (FE) were not affected (P > 0.05) by feeding treatment. Carcass characteristics, including hot carcass weight, ribeye area, backfat, yield, quality grade and cutability were also unaffected (P > 0.05) by feed treatment. Results from the digestibility studies indicated total volatile fatty acids (VFA) were increased (P = 0.023) in the WM diet, with acetate lower (P = 0.0003) than the C group, and pH levels of 5.81 and 5.55 for the C and WM treatments respectively (P = 0.011). Dry matter and ADF digestibilities were not affected (P > 0.05) by feed treatment. It is concluded from these studies that WM can be fed to growing beef heifers and steers as an alternative to more traditional concentrate sources such as corn or barley. Wheat middlings could replace up to 50% of the concentrate in a finishing ration. However, certain ruminal fermentation characteristics such as pH, acetate: propionate ratio and total volatile fatty acids may be altered, which could affect performance over an extended feeding period. Key words: Wheat middlings, average daily gain, feed efficiency, digestibility, ruminal degradation, beef cattle

scholarly journals 401 Effect of zinc source and ractopamine hydrochloride on the growth performance and carcass characteristics of steers fed in confinement to harvest

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 160-160
Author(s):  
John Wagner ◽  
William T Nelson ◽  
Terry Engle ◽  
Jerry Spears ◽  
Jeff Heldt ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Feedlot Cattle ◽  
Beef Steers ◽  
Live Animal ◽  
Zinc Source ◽  
Dressing Percentage ◽  
Ractopamine Hydrochloride ◽  
Daily Gain

Abstract Four hundred and thirty-two beef steers (346.3 ± 63.7 kg BW) were used to determine the effects of Zn source on feedlot cattle fed ractopamine hydrochloride. Cattle were blocked in groups of 54 by BW and housed in 48 pens containing 9 steers per pen. Pens within a weight block were randomly assigned to treatments in a 2 x 3 factorial arrangement, with factors being: 1) 0 or 30.1 mg of ractopamine HCl/kg DM fed during the final 29 days on feed; and 2) Zn source: 90 mg of supplemental Zn/kg DM from ZnSO4; Zn sulfate (67%) + Zn methionine (33%); and Zn from Zn hydroxychloride, fed through the entire feeding period. Cattle were fed a high concentrate finishing diet for 154 d and slaughtered at a commercial abattoir. Average daily gain, DMI, feed efficiency and carcass characteristics were determined after slaughter. Zinc source had no impact on live animal performance. Cattle fed ractopamine HCl had greater (P < 0.01) final BW, greater (P < 0.001) ADG, improved (P < 0.001) G:F, heavier (P < 0.01) HCW, and larger (P < 0.05) longissimus muscle compared to non-ractopamine supplemented steers. There was a Zn source by ractopamine interaction (P < 0.01) for dressing percentage. Cattle receiving ractopamine HCl with Zn hydroxychloride had a greater dressing percentage (P < 0.05) when compared to ractopamine HCl cattle fed other Zn sources. Cattle receiving ractopamine HCl with Zn sulfate had a lesser dressing percentage (P < 0.05) when compared to ractopamine HCl cattle fed other Zn sources. Additional Zn source by ractopamine HCl interactions were not significant. These data indicate that Zn source has minimal impacts on feedlot steer performance and carcass characteristics when supplemented to cattle receiving 0.0 or 30.1 mg of ractopamine HCl/kg DM.

scholarly journals Effects of coated and noncoated steroidal implants on growth performance, carcass characteristics, and serum estradiol-17β concentrations of finishing Holstein steers

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Pedro H V Carvalho ◽  
Mariana F Westphalen ◽  
Jonathan A Campbell ◽  
Tara L Felix
Keyword(s):  
Growth Performance ◽  
Animal Health ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Feed Ratio ◽  
Serum Estradiol ◽  
Trenbolone Acetate ◽  
Coated Implant ◽  
Daily Gain ◽  
Estradiol 17Β

Abstract The objectives of the study were to determine the effect of coated or noncoated hormone implants on growth performance, carcass characteristics, and serum estradiol-17β (E2) concentrations of Holstein steers fed a grain-based diet for 112 d. Seventy-nine Holstein steers [average initial body weight (BW) = 452 ± 5.5 kg] were stratified by BW and allotted to one of two treatments: 1) Holstein steers implanted with a coated implant containing 200 mg of trenbolone acetate (TBA) and 40 mg E2 (Revalor-XS (Merck Animal Health; Summit, NJ)] on day 0 (XS) or 2) Holstein steers implanted two times (days 0 and 56) with a noncoated implant containing 80 mg of TBA and 16 mg of E2 [(2IS) Revalor-IS (Merck Animal Health)]. Data were analyzed using the MIXED procedure of SAS (SAS Inst. Inc., Cary, NC). There was no effect (P ≥ 0.71) of implant strategy on initial, middle, and final BW. No effect (P ≥ 0.12) of implant strategy was observed on average daily gain, dry matter intake, or gain-to-feed ratio. There were no effects (P ≥ 0.11) of implant strategy on carcass characteristics. There was an implant × day interaction (P < 0.01) for the circulation of serum E2 concentrations. Serum E2 concentration increased similarly 14 d after Holstein steers were implanted, regardless of implant strategy. At 28 d, after steers were implanted, steers in the XS group had less serum E2 concentration than Holstein steers in the 2IS group. However, at 56 d after the first implantation, both groups, once again, had similar serum E2 concentrations and E2 concentrations were less on day 56 than day 28 for both strategies. Holstein steers implanted with 2IS had greater serum E2 concentration on day 70 and E2 concentrations remained greater than serum E2 of Holstein steers implanted XS for the duration of the trial (day 112). In summary, there was no effect of coated or two doses of noncoated implant on growth performance or carcass characteristics of Holstein steers.

scholarly journals The Performance and Carcass Characteristics of Black Baladi Kids Fed Diets with Graded Quantities of Sweet Lupin Grain (Lupinus angustifolius)

2022 ◽  
Vol 9 (1) ◽  
pp. 20
Author(s):  
Belal S. Obeidat
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Cost Effective ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Diet Cost ◽  
Daily Gain

A study was conducted to examine how lupin grains (LUPs) feeding affected nutritional intake, digestibility, growth, and carcass characteristics in kids. A total of 24 growing black kids (initial body weight (BW) = 16.4 ± 0.49 kg) were allocated to one of three diets at random. Lupin was included in the diet at a rate of 0 (control; CON), 100 (LUP100), or 200 g/kg (LUP200) of total dry matter (DM). The trial lasted for 91 days divided into 7 and 84 days to be used for adaptation and data collection, respectively. Feed intake was evaluated daily throughout the study. At the commencement and the end of the study, each kid’s body weight was measured to determine its average daily gain (ADG). On day 70, 5 kids were chosen at random from each group to investigate nutrient in vivo digestibility and N balance. At the end of the study, all of the kids were slaughtered to examine carcass features. Nutrient intakes (neutral detergent fiber, acid detergent fiber, and ether extract) were higher (p ≤ 0.01) in LUP-containing diets than in the CON diet. The average daily gain was greater (p ≤ 0.03) in diets containing lupin grains than in the CON diet. Cost of gain ($US/kg growth) was lower (p = 0.004) in kids fed diets containing lupin than the CON diet. Dry matter and CP digestibility rates were greater (p ≤ 0.03) in lupin diets. Retained N was higher (p = 0.04) in lupin-containing diets than in the CON diet. Cold carcass weight was higher (p < 0.05) for kids consuming the LUP100 diet than the CON diet. In lupin diets, carcass cut weights were higher (p < 0.05). Results of the current study indicate that feeding black kids diets containing lupin grains at 100 or 200 g/kg DM basis is cost effective and would increase profitability.

scholarly journals Effects of restricted feeding and re-alimentation of dietary protein or energy on compensatory growth of sheep

1970 ◽  
Vol 47 (3) ◽  
pp. 389-396
Author(s):  
W. Addah ◽  
A. Ayantunde ◽  
E.K. Okine
Keyword(s):  
Growth Performance ◽  
Dietary Protein ◽  
Feed Efficiency ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
High Energy ◽  
Utilization Efficiency ◽  
Eating Quality ◽  
Nutrient Utilization Efficiency ◽  
Daily Gain

The study investigated the effects of re-alimenting dietary protein or energy on growth, carcass characteristics and meat eating quality parameters of sheep. Twenty-seven intact rams (~9 months; 11.3 ± 0.5 kg) were randomly divided into three groups. Each group was fed a maintenance diet (MT) containing, on dry matter (DM) basis, 105 g/kg crude protein (CP) and 8.4 MJ/kg DM metabolizable energy (ME) for 30 days. Thereafter, they were continually fed the same MT or re-alimented with a high protein diet (HP) containing 169 g/kg DM CP and 9.3 MJ/kg ME or a high energy diet (HE) containing 123 g/kg DM CP and 10.6 MJ/kg ME for an additional 30 days to determine the effects of re-alimentation of protein or energy on their growth performance and carcass characteristics. During the initial 30-day period, DM intake (DMI) and growth performance were similar among the three groups. However, upon re-alimentation, average daily gain (ADG) and feed efficiency of sheep re-alimented with HP were greater than those maintained continually on MT or re-alimented with HE. Sheep on HP had higher feed efficiency, ADG and heavier carcasses than those fed MT or re-alimented with HE during the whole 60-day period. Growth of most viscera was less responsive to the restriction-re-alimentation feeding regimen except for the weights of the lungs, heart and intestines. Meat from sheep re-alimented with HE had a more intense ‘sheepy’ flavour than those fed MT or re-alimented with HP, but juiciness and tenderness were not affected. The higher ADG of sheep re-alimented with protein may be related more to enhanced efficiency of feed utilization than to higher DMI.Keywords: average daily gain, feed restriction, nutrient utilization efficiency, visceral organs

scholarly journals Pengaruh Penambahan Mikroenkapsulasi Minyak Kanola Terhadap Performa, Kecernaan Nutrien, dan Profil Asam Lemak Rumen Domba

2019 ◽  
Vol 6 (3) ◽  
pp. 349
Author(s):  
Vishara Sekar Fadhilah ◽  
I Komang Gede Wiryawan ◽  
Sri Suharti
Keyword(s):  
Fatty Acids ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Canola Oil ◽  
Unsaturated Fatty Acids ◽  
Block Design ◽  
Average Daily Gain ◽  
Randomized Block Design ◽  
Feeding Diets ◽  
Average Body

ABSTRAK      Penelitian ini bertujuan untuk menyelidiki pengaruh dari pemberian pakan yang mengandung mikroenkapsulasi minyak kanola pada konsumsi, kecernaan nutrien, dan performa pertumbuhan pada domba. Lima belas domba garut jantan dengan rataan bobot badan awal 20.17 ± 4.65 kg digunakan dalam rancangan acak kelompok (RAK) pada periode pemeliharaan selama 100 hari dengan 3 perlakuan dan 5 kelompok sebagai ulangan. Perlakuan yang digunakan adalah P0 (kontrol / hijauan: konsentrat = 60:40), P1 (P0 mengandung 4% minyak kanola), dan P2 (P0 mengandung 4% mikroenkapsulasi minyak kanola). Hasil yang diperoleh dalam penelitian ini menunjukkan bahwa tidak ada perbedaan untuk performa, konsumsi dan kecernaan nutrien. Suplementasi minyak kanola murni maupun terenkapsulasi sebagai sumber energi dalam ransum domba, menghasilkan pertambahan bobot badan harian (PBBH) dan efisiensi penggunaan pakan yang terbaik. Proporsi asam lemak tak jenuh pada perlakuan suplementasi mikroenkapsulasi minyak kanola 8% lebih tinggi dibandingkan dengan kontrol. Perlakuan minyak kanola murni meningkatkan (P<0.05) proporsi asam stearat (C18:0) dibandingkan perlakuan lainnya. Sehingga, dapat disimpulkan bahwa suplementasi 4% mikroenkapsulasi minyak kanola di dalam ransum, selaian menghasilkan PBBH dan efisiensi pakan terbaik juga mampu melindungi asam lemak tak jenuh (ALTJ) dari proses biohidrogenasi rumen tanpa mengganggu konsumsi dan kecernaan nutrient ransum.Kata kunci: konsumsi, kecernaan, mikroenkapsulasi, minyak kanola, performaABSTRACTThe aim of this study was to investigate the effects of feeding diets with microencapsulation of canola oil on intake, nutrient apparent digestibility, and growth performance of lambs. Fifteen male garut lambs with an initial average body weight of 20.17 ± 4.65 kg were used in a randomized block design (RBD) for a 100-days feeding period with 3 treatments and 5 groups as replication. The treatments were P0 (control/forage:concentrate = 60:40), P1 (P0 contained 4% of canola oil), and P2 (P0 contained 4% of microencapsulated canola oil). The results showed that there was no difference in the growth performance, intake, and digestibility of nutrients. The best of average daily gain (ADG) and feed efficiency results from the supplementation of pure canola oil or encapsulated canola oil in diets. The proportion of unsaturated fatty acids in the supplementation of microencapsulated canola oil treatment was 8% higher than control. The treatment of canola oil supplementation increased (P<0.05) the proportion of stearic acid (C18:0) compared to other treatments. Thus, it can be concluded that supplementation of 4% of microencapsulated canola oil, besides produced the best of ADG and feed efficiency, was also able to maintain unsaturated fatty acids from the rumen biohydrogenation process without detrimental effects on nutrient intake and digestibility in lambs.    Keywords: canola oil, digestibility, intake, microencapsulation, performance

scholarly journals Effects of steroidal implants on feedlot performance, carcass characteristics, and serum and meat estradiol-17β concentrations of Holstein steers

2019 ◽  
Vol 4 (1) ◽  
pp. 206-213 ◽  
Author(s):  
Pedro Henrique Vilela Carvalho ◽  
George A Perry ◽  
Tara L Felix
Keyword(s):  
Feed Efficiency ◽  
Animal Health ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Feed Ratio ◽  
Longissimus Muscle ◽  
Feedlot Performance ◽  
Trenbolone Acetate ◽  
Daily Gain ◽  
Estradiol 17Β

Abstract The objectives of the study were to determine the effect of steroidal implants on growth performance, carcass characteristics, and estradiol-17β (E2) concentrations in the blood and longissimus muscle of Holstein steers fed a grain-based diet. Seventy Holstein steers (average initial BW = 275 ± 6.4 kg, 10 to 12 mo of age) were assigned to treatments: (i) implanted with 80 mg of trenbolone acetate (TBA) and 16 mg of E2 (Component TE-IS with Tylan; Elanco Animal Health, Greenfield, IN) at the start of the trial (day 0), and reimplanted with 120 mg of TBA and 24 mg of E2 (Component TE-S with Tylan; Elanco Animal Health) on day 84 of the experiment; or (ii) no implant. Implanted Holstein steers were heavier (P ≤ 0.01) than nonimplanted Holstein steers in the middle (day 84) and at the end of the experiment (day 186). Implanting Holstein steers increased (P &lt; 0.01) average daily gain (ADG) and dry matter intake (DMI) without affecting gain-to-feed ratio compared with nonimplanted animals. Carcasses from implanted Holstein steers had greater (P &lt; 0.01) hot carcass weight (HCW) and longissimus muscle (LM) area than carcasses from nonimplanted steers. Implanting did not affect (P ≥ 0.21) other carcass characteristics. There was an increase (P = 0.03) of 1.3 pg of E2/g of muscle in implanted Holstein steers compared with that from nonimplanted Holstein steers. There was an implant × day interaction (P &lt; 0.01) in serum E2 concentrations. Serum E2 concentrations were not altered in nonimplanted Holstein steers, whereas E2 concentration increased (P &lt; 0.01) after steers were implanted, regardless of implant characteristics. Serum E2 peaked at 28 days after the first implant and then rapidly declined after day 56. In summary, steroidal implants administered on days 0 and 84 increased DMI, ADG, HCW, and LM area in Holstein steers compared with nonimplanted steers due to increased serum E2 concentrations. However, these changes did not improve feed efficiency or other carcass characteristics.

INFLUENCE OF HIGH-MOISTURE BARLEY ON THE PERFORMANCE AND CARCASS CHARACTERISTICS OF FEEDLOT CATTLE

1988 ◽  
Vol 68 (3) ◽  
pp. 811-820 ◽  
Author(s):  
J. J. KENNELLY ◽  
G. W. MATHISON ◽  
G. de BOER
Keyword(s):  
Dry Matter ◽  
Free Choice ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Barley Grain ◽  
Feedlot Cattle ◽  
Feed Conversion ◽  
High Moisture ◽  
Feeding Value ◽  
Daily Gain

Three factorial experiments were conducted to determine the relative feeding value of dry barley (DB) and high-moisture barley (HMB), and to evaluate the influence of method of ensiling (Pit vs. Harvestore® (HAV) silo), source of roughage (hay vs. silage), and level of concentrate (90 vs. 75%) on the performance and carcass characteristics of feedlot cattle. In exp. 1, 252 steers (initial wt 357 kg) were assigned on the basis of weight to six treatments (two pens × 21 animals per pen). A mixed diet consisting of 85.2% barley grain (dry matter (DM) basis) was offered free choice. The barley portion of the ration consisted of either 0, 25, 50, 75 or 100% DB with the balance being HMB from a pit silo. The sixth treatment consisted of feeding 100% HMB for the first 57 d and 100% DB for the remainder of the trial. Overall average daily gain (ADG) for steers fed 100% DB (1.70 kg d−1) was significantly higher than observed for animals fed 100, 75 or 50% HMB (1.46, 1.49 and 1.56 kg d−1, respectively). The kg of feed DM required per kg gain (FC) varied between 5.76 and 7.13 and was not (P > 0.05) influenced by treatment. No differences (P > 0.05) were observed in carcass characteristics. In exp. 2, 360 steers (initial wt 340 kg) were allotted on the basis of weight to six treatments designed to evaluate the effect of source (Pit vs. HAV) and level of HMB, in diets containing 10.2% silage, on animal performance. Overall ADG (1.11 – 1.17 kg d−1), FC (6.66 – 7.01) and carcass characteristics were similar (P > 0.05) for animals fed Pit HMB, HAV HMB and DB. In exp. 3, 264 weanling calves (initial wt 216 kg) were allotted on the basis of weight to six treatments which differed in type of barley (HMB vs. DB), source of roughage (hay vs. silage) and level of concentrate (75 vs. 90%; DM basis). The feeding period was 127 d. Daily gains varied between 0.78 and 0.91 kg d−1 and FC ranged from 6.40 to 7.10 and were not influenced (P > 0.05) by source of barley or source or level of roughage. While animals fed DB had significantly higher ADG than those fed HMB in exp. 1, the overall results from the three experiments indicate that on a DM basis HMB has similar feeding value to DB, and that there is no major difference between Pit and HAV-stored HMB for feedlot cattle. Key words: High moisture, barley, cattle, gain, feed conversion

Effects of dietary supplement of mulberry leaf (Morus alba) on growth and meat quality in rabbits

2018 ◽  
Author(s):  
Q.R. Hou ◽  
J. Zhang ◽  
T. Chen ◽  
W.G. Zhao ◽  
L. Li
Keyword(s):  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
B Value ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Leg Muscles ◽  
Mulberry Leaf ◽  
Leaf Powder ◽  
Daily Gain

This research evaluated the effects of mulberry leaf in diet on growth and meat quality in rabbits. Five treatment diets were prepared by using a proportion of 0% (CK), 5% (ML5), 10% (ML10), 15% (ML15) and 20% (ML20) mulberry leaf powder (MLP), respectively. Results showed that average daily gain (ADG) in the ML20 group was significantly (P£ 0.05) lower than that in the CK, ML5 and ML10 treatments. Feed conversion ratio (FCR) in the ML20 treatment was significantly (P£ 0.05) higher than that in all other treatments. Most of the carcass characteristics had no significant differences among the five treatments (P>0.05), however, abdominal fat percentage in the four MLP treatments was significantly (P£ 0.05) lower than that in the CK. The L* and a* values in most of MLP treatment samples of longissimus dorsi and hind leg muscles were significantly increased, and the b* value significantly declined than those in the CK (P£ 0.05). Drip loss values in the ML10, ML15 and ML20 group were significantly (P£ 0.05) lower than those in the CK. Moisture, fat and ash contents in the higher MLP level treatments (ML15 and ML20) were significantly (P£ 0.05) lower than those in the CK. In conclusion, MLP for a certain proportion in diet (£ 15%)is greatly valuable for improvement of growth and meat appearance of rabbits, and a high proportion of MLP (e.g. ³ 20%) may impede growth of young rabbits.

Sign in / Sign up

Export Citation Format

Share Document