COCONUT MEAL INCLUSION IN HIGH CONCENTRATE SHEEP DIETS AFFECTS FEED DIGESTIBILITY AND INTAKE<sup>1</sup>

SILVA, PAULA FABRINY MAUÉS DA; PANTOJA, SARAH OLIVEIRA SOUSA; DOMINGUES, FELIPE NOGUEIRA; RÊGO, ANIBAL COUTINHO DO; FATURI, CRISTIAN

doi:10.1590/1983-21252021v34n321rc

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Article • Rev. Caatinga 34 (3) • Jul-Sep 2021 • https://doi.org/10.1590/1983-21252021v34n321rc copy

COCONUT MEAL INCLUSION IN HIGH CONCENTRATE SHEEP DIETS AFFECTS FEED DIGESTIBILITY AND INTAKE¹

TORTA DE COCO EM DIETAS PARA OVINOS COM ALTO CONCENTRADO AFETA DIGESTIBILIDADE E CONSUMO

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Coconut meal can be an affordable low-cost alternative to noble ingredients such as corn and soybean meal in sheep diets. The objective of this study was to evaluate the effects of coconut meal inclusions, when used as a corn and soybean meal replacement, on the intake, digestibility, and nitrogen balance of sheep diets. Twenty-four male Santa Inês lambs with body weights (BW) of 26.6 ± 3.2 kg were used in the study. The animals were housed in metabolic cages and distributed in a completely randomized block design, with three treatments and eight replications. The animals received a total mixed ratio of 30% roughage (elephant grass) and 70% concentrate. The animals were fed on two experimental diets with 11% and 22% coconut meal inclusion and a control diet (without coconut meal). Dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and non-fibrous carbohydrate (NFC) intake as a percentage of BW were negatively influenced by the inclusion of coconut meal. The ether extract (EE) intake increased but did not differ between the 11% and 22% coconut meal diets. Furthermore, the digestibility of DM, CP, EE, and ADF did not differ between the two evaluated diets. The inclusion of coconut meal reduced NDF digestibility and increased that of NFC. The level of inclusion of coconut meal in the diet must be based on the EE content in the meal; keeping the EE intake below 0.16% of the BW helped to avoid limited intake of feed.

Keywords:
Agricultural byproduct; Ether extract; Lambs; Metabolic trial

Item (%)	Elephant grass	Coconut meal	Ground corn	Soybean meal	Wheat bran
DM¹	17.97	89.50	86.48	87.11	85.99
OM²	93.70	95.89	98.48	93.19	94.20
MM³	6.30	4.11	1.52	6.81	5.80
CP⁴	6.43	20.35	9.23	44.34	23.70
EE⁵	1.30	26.43	3.04	3.34	2.72
NDFap6	70.39	41.22	23.66	26.13	45.45
ADF⁷	41.86	27.68	3.34	9.75	13.72
NFC8	15.58	7.89	55.83	21.41	11.32
LIG9	7.48	2.49	0.22	1.40	2.54

Item	Concentration of coconut meal in the diet
Item	0%	11%	22%
	Proportion of ingredients (% of DM)
Coconut meal	-	11.00	22.00
Soybean meal	20.00	15.00	10.00
Ground corn	31.00	25.00	19.00
Wheat bran	18.00	18.00	18.00
Urea	0.50	0.50	0.50
Calcitic limestone	0.50	0.50	0.50
Elephant Grass	30.00	30.00	30.00
	Chemical composition (%)
DM¹	65.10	65.40	68.22
OM²	94.19	94.17	94.15
MM³	5.81	5.83	5.85
CP⁴	19.32	18.79	18.26
EE⁵	2.49	5.05	7.61
NDFap 6	45.51	47.01	48.52
ADF⁷	18.02	20.37	22.73
LIG⁸	2.24	3.68	4.31
NFC⁹	28.27	24.72	21.16

Voluntary intake	Concentration of coconut meal			VC(%)⁸⁸	SE⁹	P-Value
	0%	11%	22%
	Kg/animal/day
DM¹	0.879^a	0.780^a	0.535^b				15.10	0.0352	<0.0001
OM²	0.829^a	0.758^a	0.542^b	10.64	0.0232	<0.0001
CP³	0.178^a	0.158^b	0.107c	11.50	0.0052	<0.0001
EE⁴	0.023^b	0.046^a	0.040^a	18.54	0.0026	<0.0001
NDF⁵	0.380^a	0.344^a	0.255^b	14.50	0.0152	0.0001
ADF⁶	0.142	0.141	0.120	14.46	0.0066	0.0565
NFC⁷	0.247^a	0.212^b	0.140c	9.26	0.0062	<0.0001
Percentage body weight
DM¹	3.37^a	2.90^b	2.01c	8.60	0.1116	<0.0001
OM²	3.19^a	2.82^b	2.05c	7.93	0.0629	<0.0001
CP³	0.68^a	0.59^b	0.40c	8.75	0.0145	<0.0001
EE⁴	0.09^b	0.16^a	0.16^a	15.98	0.0071	<0.0001
NDF⁵	1.46^a	1.28^b	0.96c	8.25	0.0465	<0.0001
ADF⁶	0.55^a	0.52^a	0.45^b	10.61	0.0207	0.0062
NFC⁷	0.95^a	0.79^b	0.53c	9.54	0.0212	<0.0001
UMS (g kg BW^0.75−1)
DM¹	76.12^a	65.83^b	45.66^c	10.14	2.5615	<.0001
OM²	71.91^a	63.96^b	46.45^c	2.80	1.4327	<.0001
CP³	15.49^a	13.30^b	9.16^c	3.34	0.3342	<.0001
EE⁴	2.03^b	3.73^a	3.53^a	15.57	0.1638	<.0001
NDF⁵	32.94^a	29.02^b	21.77^c	9.68	1.0746	<.0001
ADF⁶	12.33^a	11.91^a	10.25^b	11.20	0.4751	0.0102
NFC⁷	21.46^a	17.91^b	11.99^c	6.32	0.4604	<.0001

Sieve size	Concentration of coconut meal			VC¹ %	SE²	P value
Sieve size	0%	11%	22%	VC¹ %	SE²	P value
	Particle retention (%)
19 mm	59^a	42^a	11^b	53.06	7.00	0.0003
7.8 mm	17a^b	28^a	13^b	47.93	3.30	0.0105
1.8 mm	12^b	16^b	33^a	47.06	3.36	0.0004
Ground	12^b	14^b	43^a	40.74	3.31	0.0001

Digestibility	Concentration of coconut meal			VC %⁸	SE⁹	P value
Digestibility	0%	11%	22%	VC %⁸	SE⁹	P value
DM¹	71.88	68.15	66.48	8.46	2.0804	0.1907
OM²	74.13	72.25	74.47	6.15	1.6187	0.5811
CP³	79.36	78.25	70.51	21.25	5.7967	0.5020
EE⁴	85.67	80.87	95.72	17.20	5.4649	0.1573
NDF⁵	65.85^a	56.16^b	55.87^b	10.39	2.1906	0.0055
ADF⁶	52.84	45.72	51.34	16.21	2.8914	0.2043
NFC⁷	81.58^b	89.91^ab	96.92^a	9.35	3.1196	0.0058

Item (g/animal/day)	Concentration of coconut meal			VC %¹	SE²	P value
Item (g/animal/day)	0%	11%	22%	VC %¹	SE²	P value
N ingested	28.56^a	25.22^a	17.10^b	11.48	0.8374	<0.0001
N fecal	5.90	5.39	5.09	58.66	1.1427	0.8786
N urinary	5.14^a	3.16^b	1.98^c	29.24	0.3544	0.0002
N absorbed	22.67^a	19.83^a	12.01^b	22.01	1.3691	<0.0001
N withheld	17.52^a	16.31^a	9.63^b	27.42	1.5315	0.0044
N withheld (%)	61.11	65.69	58.66	27.94	6.5089	0.7111

Universidade Federal Rural do Semi-Árido Avenida Francisco Mota, número 572, Bairro Presidente Costa e Silva, Cep: 5962-5900, Telefone: 55 (84) 3317-8297 - Mossoró - RN - Brazil
E-mail: caatinga@ufersa.edu.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author

Brasil

Brasil

COCONUT MEAL INCLUSION IN HIGH CONCENTRATE SHEEP DIETS AFFECTS FEED DIGESTIBILITY AND INTAKE1

TORTA DE COCO EM DIETAS PARA OVINOS COM ALTO CONCENTRADO AFETA DIGESTIBILIDADE E CONSUMO

ABSTRACT

COCONUT MEAL INCLUSION IN HIGH CONCENTRATE SHEEP DIETS AFFECTS FEED DIGESTIBILITY AND INTAKE¹