Effects of feed restriction and realimentation on mohair fiber growth and tissue gain by growing Angora goats

Puchała, R.; Patra, Amlan Kumar; Animut, Getachew; Sahlu, T.; Goetsch, A.L.

doi:10.1016/j.livsci.2010.12.022

Cited by 12 publications

(7 citation statements)

References 10 publications

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“…Murphy and Loerch (1994) in their experiment observed similar results in terms of hot carcass weight which reduced linearly (P<0.04) for the restrictedly fed growing steers compared with the control. Puchala et al (2011) noted the similar results on Angora goats that reduced body weight with lengthening of the feed restriction. From the results of this experiment, it is evident that restricted DM intake reduces the live body weight of cattle up to 21 days feed restriction which can be compensated by offering unrestricted feeds in the realimentation period.…”

Section: Body Weight and Body Condition Scoringsupporting

confidence: 68%

Effects of feed restriction on morphometric and biochemical parameters in cattle

Basu¹,

Singh²,

Gupta³

et al. 2019

ijah

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The present study was conducted to evaluate the effect of dry matter restriction on morphometry (live body weight and body condition score) and blood biochemistry (glucose, blood urea nitrogen, creatinine and total protein) in unproductive cattle. Nine non-descript, crossbred cows (BCS over 4) were randomly distributed in 3 treatments (T 0 , T 1 and T 2 ). T 0 : the control group was fed with dry matter (DM) @ 2.5% of the body weight. T 1 and T 2 were fed with the restricted DM i.e., @ 2% and 1.5% of the body weight, respectively up to 21 days. After 21 days of feed restriction all the cows were fed normal diets i.e., 2.5% of the body weight for next 21 days. Declining rate in body weight were observed (P<0.05) in T 1 and T 2 during the restriction period as well as in re-alimentation. Body condition score was not significantly (P>0.05) affected in restriction period. A declining trend was observed in blood glucose and urea nitrogen concentrations during feed restriction but an increasing trend was also observed during re-alimentation. By this study we can conclude that upto 60% reduction in feed intake will not exert any harmful effect on morphology and physiology of cattle during feed scarcity.

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Section: Body Weight and Body Condition Scoringsupporting

confidence: 68%

Effects of feed restriction on morphometric and biochemical parameters in cattle

Basu¹,

Singh²,

Gupta³

et al. 2019

ijah

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“…Fasting HE and ME m estimated when animals were fed near the assumed ME m requirement for 8 d after different levels of feeding for 4 wk were considerably less than expected based on findings of Luo et al (2004), most importantly a ME m of 473 kJ/kg of BW 0.75 recommended by NRC (2007). Likewise, Puchala et al (2007) observed greater ME m of 431 kJ/kg of BW 0.75 in grow- Luo et al (2004), is attributable to activity (Goetsch et al, 2010). Presumably, the activity energy cost was minimal in the present experiment because of housing conditions.…”

Section: Me For Maintenancementioning

confidence: 43%

“…The absence of significant effect of feeding level on clean fiber growth rate reflects nutrient partitioning to support fiber growth. This was also evident in an experiment of Puchala et al (2007) with Angora goats 6 to 12 mo of age subjected to 6 different levels of intake for 12 wk, followed by 12 wk of ad libitum consumption. Clean fiber growth rate ranged from 4.7 to 5.7 g/d in the first phase and 5.8 to 6.8 g/d in the second.…”

Section: Fiber Composition and Growthmentioning

confidence: 65%

Effects of level of feeding on energy utilization by Angora goats1

Tovar-Luna

Puchała

Sahlu

et al. 2011

Journal of Animal Science

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Twelve mature Angora does were used in a replicated 3 × 3 Latin square to determine effects of feeding level on energy utilization. Fiber growth and change in tissue (nonfiber) mass were determined in the first 4 wk of 6-wk periods, preceded by 14 or 18 d of adaptation. Determination of ME intake and gas exchange measures occurred in wk 4, followed by feeding near maintenance, then fasting in wk 5 and 6 to determine the ME requirement for maintenance (ME(m)). A 60% concentrate diet was fed at levels to approximate 100, 125, and 150% of assumed ME(m) [low, medium (med), and high, respectively]. Digestibilities and diet ME/GE were not affected by treatment with different amounts of feed offered and subsequent intake near ME(m). Heat energy during fasting (261, 241, and 259 kJ/kg of BW(0.75); SEM = 8.7) and efficiency of ME used for maintenance (71.6, 69.6, and 69.2%; SEM = 2.29) were similar among treatments, although ME(m) differed (P < 0.04) between med and high (365, 344, and 377 kJ/kg of BW(0.75) for low, med, and high, respectively; SEM = 10.3). Tissue gain was less (P < 0.01) for low than for the mean of med and high (MH; -0.6, 23.7, and 29.8 g/d), although clean fiber growth only tended (P < 0.09) to differ between low and MH (5.60, 6.57, and 7.36 g/d for low, med, and high, respectively; SEM = 0.621). Intake of ME was greater (P < 0.01) for MH than for low (6.87, 8.22, and 8.41 MJ/d for low, med, and high, respectively). Total heat energy was less (P < 0.02) for low vs. MH and tended (P < 0.07) to be greater for high than for med (6.03, 6.31, and 6.77 MJ/d); mobilized tissue energy was low but greater (P < 0.02) for low vs. MH (0.16, 0.01, and 0.04 MJ/d for low, med, and high, respectively). Efficiency of ME use for fiber growth was similar among treatments (17.2, 16.3, and 17.7% for low, med, and high, respectively; SEM = 1.61). In conclusion, efficiency of ME use for fiber growth was similar to the NRC recommendation regardless of feeding level, although ME(m) was decreased perhaps because of experimental conditions used. Energy appeared partitioned to fiber growth, but preferential usage was not complete possibly because energy metabolism for tissue accretion reached a plateau with the greatest feeding level.

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“…In sheep, HS (28 to 40 °C vs. 18-21 °C), which reduced feed intake by 13% and caused oxidative stress and supplementation of selenium (0.24 and 1.2 mg/kg diet) and vitamin E (10 and 100 IU/kg diet) ameliorated oxidative stress, but did not improve feed intake [123].…”

Section: Antioxidant Mineralsmentioning

confidence: 98%

“…Selenium also enhances immune responses by changing the production of certain cytokines by immune cells and enhancing the resistance mechanism of immune cells to oxidative stress [ 122 ]. In sheep, HS (28°C–40°C vs. 18°C–21°C), which reduced feed intake by 13% and caused oxidative stress and supplementation of selenium (0.24 and 1.2 mg/kg diet) and vitamin E (10 and 100 IU/kg diet) ameliorated oxidative stress, but did not improve feed intake [ 123 ].…”

Section: Amelioration Of Heat Stressmentioning

confidence: 99%

Heat stress on microbiota composition, barrier integrity, and nutrient transport in gut, production performance, and its amelioration in farm animals

Patra

Kar

2021

J Anim Sci Technol

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Effects of feed restriction and realimentation on mohair fiber growth and tissue gain by growing Angora goats

Cited by 12 publications

References 10 publications

Effects of feed restriction on morphometric and biochemical parameters in cattle

Effects of feed restriction on morphometric and biochemical parameters in cattle

Effects of level of feeding on energy utilization by Angora goats1

Heat stress on microbiota composition, barrier integrity, and nutrient transport in gut, production performance, and its amelioration in farm animals

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